HAYNES® 230® alloy
Principal Features
Excellent High-Temperature Strength, Thermal Stability, and Environment Resistance
HAYNES® 230® (UNS N06230) alloy is a nickel-chromium-tungsten-molybdenum alloy that combines excellent high-temperature strength, outstanding resistance to oxidizing environments up to 2100°F (1149°C) for prolonged exposures, premier resistance to nitriding environments, and excellent long-term thermal stability. It is readily fabricated and formed, and is castable. Other attractive features include lower thermal expansion characteristics than most high-temperature alloys, and a pronounced resistance to grain coarsening with prolonged exposure to hightemperatures.
Easily Fabricated
HAYNES® 230® alloy has excellent forming and welding characteristics. It may be forged or otherwise hot-worked, providing it is held at 2150°F (1177°C) for a time sufficient to bring the entire piece to temperature. As a consequence of its good ductility, 230® alloy is also readily formed by cold-working. All hot- or cold-worked parts should be annealed and rapidly cooled in order to restore the best balance of properties. The alloy can be welded by a variety of techniques, including gas tungsten arc (GTAW), gas metal arc (GMAW), and resistance welding.
Heat Treatment
Wrought 230® alloy is furnished in the solution heat treated condition, unless otherwise specified. The alloy is solution heat-treated in the range of 2150 to 2275°F (1177 to 1246°C) and rapidly cooled or water-quenched for optimum properties.
Annealing at temperatures lower than the solution heat treating temperatures will produce some carbide precipitation in 230® alloy, which may marginally affect the alloy’s strength and ductility.
Castings
HAYNES® 230® alloy may be cast using traditional air-melt sand mold or vacuum-melt investment casting foundry practices. Silicon levels at the high end of the specification range are recommended for enhanced fluidity. Castings may be used in either the as-cast or solution-heat-treated condition depending upon property requirements.
Applications
HAYNES® 230® alloy combines properties which make it ideally suited for a wide variety of component applications in the aerospace and power industries. It is used for combustion cans, transition ducts, flame holders, thermocouple sheaths, and other important gas turbine components. In the chemical process industry, 230® alloy is used for catalyst grid supports in ammonia burners, high-strength thermocouple protection tubes, high-temperature heat exchangers, ducts, high-temperature bellows, and various other key process internals.
In the industrial heating industry, applications for 230 alloy include furnace retorts, chains and fixtures, burner flame shrouds, recuperator internals, dampers, nitriding furnace internals, heat-treating baskets, grates, trays, sparger tubes, thermocouple protection tubes, cyclone internals, and many more.
*Please contact our technical support team if you have technical questions about this alloy.
Nominal Composition
Weight % | |
Nickel | 57 Balance |
Chromium | 22 |
Tungsten | 14 |
Molybdenum | 2 |
Iron | 3 max. |
Cobalt | 5 max. |
Manganese | 0.5 |
Silicon | 0.4 |
Niobium | 0.5 max. |
Aluminum | 0.3 |
Titanium | 0.1 max. |
Carbon | 0.1 |
Lanthanum | 0.02 |
Boron | 0.015 max. |
Creep and Stress-rupture Strength
HAYNES® 230® alloy is a solid-solution-strengthened material which combines excellent high-temperature strength with good fabricability at room temperature. It is particularly effective for very long-term applications at temperatures of 1200°F (650°C) or more, and is capable of outlasting stainless steels and nickel alloys by as much as 100 to 1 depending upon the temperature. Alternatively, the higher strength of 230® alloy allows for the use of design section thicknesses as much as 75 percent thinner than lesser alloys with no loss in load-bearing capability.
Stress-Rupture Lives for Various Alloys at Fixed Test Conditions (Bar and Plate)*
Alloy | Hours to Rupture | ||
1400°F (760°C) | 1600°F (871°C) | 1800°F (982°C) | |
– | 15.0 ksi (103 MPa) | 4.1 ksi (31 Mpa) | 2.0 ksi (14 Mpa) |
230® | 8,200 | 65,000 | 5,000 |
625 | 19,000 | 14,000 | 2,400 |
X | 900 | 5,000 | 2,100 |
800H | 130 | 1,200 | 920 |
INCONEL® 601 | 50 | 1,200 | 1,000 |
253 MA® | 140 | 900 | 720 |
600 | 15 | 280 | 580 |
316 SS | 100 | 240 | 130 |
RA330® | 30 | 230 | 130 |
304 SS | 10 | 100 | 72 |
*Based upon Larson-Miller extrapolation
Comparison of Stress to Produce 1% Creep in 1000 Hours (Sheet)
230® Sheet, Solution Annealed
Temperature | Creep | Approximate Initial Stress to Produce Specified Creep in | ||||||||
10 Hours | 100 Hours | 1,000 Hours | 10,000 Hours | |||||||
°F | °C | % | ksi | MPa | ksi | MPa | ksi | MPa | ksi | MPa |
1200 | 649 | 0.5 | – | – | 31 | 214 | – | – | – | — |
1 | – | – | 35 | 241 | 24* | 165* | – | — | ||
R | – | – | 51 | 352 | 36 | 248 | 28 | 193 | ||
1300† | 704 | 0.5 | 29 | 200 | 21 | 145 | 14.5 | 100 | – | — |
1 | 33 | 228 | 23 | 159 | 17 | 114 | – | — | ||
R | 47 | 324 | 34 | 234 | 26 | 179 | 20 | 134 | ||
1400 | 760 | 0.5 | 19.2 | 132 | 13.7 | 94 | 9.6 | 66 | 7.3 | 50 |
1 | 21 | 145 | 15.5 | 107 | 11.5 | 79 | 8.6 | 59 | ||
R | 32 | 221 | 24.5 | 169 | 18.2 | 125 | 13.2* | 91* | ||
1500 | 816 | 0.5 | 14.2 | 98 | 10.3 | 71 | 7.5 | 52 | 5.4* | 37* |
1 | 15 | 103 | 11.2 | 77 | 8.6 | 59 | 6.5* | 45* | ||
R | 23* | 161* | 17.5 | 121 | 12.5 | 86 | 8.4* | 58* | ||
1600 | 871 | 0.5 | 11.3 | 78 | 8.1 | 56 | 5.7 | 39 | 4.0 | 28 |
1 | 11.7 | 81 | 9.0 | 62 | 6.2 | 43 | 4.3 | 30 | ||
R | 17.0 | 117 | 12.5 | 86 | 8.2 | 57 | 5.6* | 39* | ||
1700 | 927 | 0.5 | 7.7 | 53 | 5.5 | 38 | 3.8 | 26 | 2.4* | 17* |
1 | 8.8* | 61* | 6.2 | 43 | 4.2 | 29 | 2.7* | 19* | ||
R | 12.0* | 83* | 8.0 | 55 | 5.1 | 35 | 3.2 | 22 | ||
1800 | 982 | 0.5 | 7.0 | 48 | 3.6 | 25 | 1.8 | 12 | 0.85 | 5.9 |
1 | 8.0 | 55 | 4.1 | 28 | 2.0 | 14 | 1.0 | 6.9 | ||
R | 10.0 | 69 | 5.4 | 37 | 2.6 | 18 | 1.2* | 8.3* | ||
1900 | 1038 | 0.5 | – | – | 1.7 | 12 | 0.8 | 5.5 | – | — |
1 | – | – | 2.0 | 14 | 0.9 | 6.2 | – | — | ||
R | – | – | 3.0* | 21* | 1.5 | 10 | – | — | ||
2000 | 1093 | 0.5 | – | – | – | – | – | – | – | — |
1 | – | – | 0.9 | 6.2 | – | – | – | — | ||
R | – | – | – | – | – | – | – | — |
*Significant extrapolation
† Values obtained using Larson-Miller interpolation
230® Plate, Solution Annealed
Temperature | Creep | Approximate Initial Stress to Produce Specified Creep in | ||||||||
10 Hours | 100 Hours | 1,000 Hours | 10,000 Hours | |||||||
°F | °C | % | ksi | MPa | ksi | MPa | ksi | MPa | ksi | MPa |
1200 | 649 | 0.5 | – | – | 35 | 241 | 23 | 159 | – | – |
1 | – | – | 39 | 269 | 26.5 | 183 | 17.5 | 121 | ||
R | 75 | 517 | 56 | 386 | 41 | 283 | 29 | 200 | ||
1300 | 704 | 0.5 | 35 | 241 | 21.5 | 148 | 14.5 | 100 | – | – |
1 | 39 | 269 | 24.5 | 169 | 18 | 124 | 12.3* | 85* | ||
R | 59 | 407 | 42 | 290 | 30 | 207 | 21 | 145 | ||
1400 | 760 | 0.5 | 19 | 131 | 13.5 | 93 | 10.0 | 69 | – | – |
1 | 23 | 159 | 15.9 | 110 | 11.5 | 79 | 9.0* | 62* | ||
R | 37 | 255 | 27 | 186 | 20 | 138 | 14.2 | 98 | ||
1500 | 816 | 0.5 | 14.0 | 97 | 10.4 | 72 | 8.2 | 57 | 6.1 | 42 |
1 | 16.5 | 114 | 12.5 | 86 | 9.5 | 66 | 6.9 | 48 | ||
R | 26 | 179 | 20 | 138 | 14.0 | 97 | 9.8 | 68 | ||
1600 | 871 | 0.5 | 10.3 | 71 | 7.6 | 52 | 5.6 | 39 | 4.0 | 28 |
1 | 11.7 | 81 | 9.0 | 62 | 6.2 | 43 | 4.3 | 30 | ||
R | 20 | 138 | 13.7 | 94 | 9.5 | 66 | 6.2 | 43 | ||
1700 | 927 | 0.5 | 7.8 | 54 | 5.7 | 39 | 3.9 | 27 | 2.5 | 17 |
1 | 8.8 | 61 | 6.8 | 47 | 4.5 | 31 | 2.7 | 19 | ||
R | 15.0 | 103 | 10.0 | 69 | 6.0 | 41 | 3.6 | 25 | ||
1800 | 982 | 0.5 | 5.8 | 40 | 3.5 | 24 | 1.8 | 12 | 0.90 | 6.2 |
1 | 6.3 | 43 | 4.0 | 28 | 2.1 | 14 | 1.1 | 7.6 | ||
R | 9.4 | 65 | 6.0 | 41 | 3.2 | 22 | 1.7 | 12 | ||
1900 | 1038 | 0.5 | 4.0 | 28 | 2.0 | 14 | 0.90 | 6.2 | – | – |
1 | 4.4 | 30 | 2.2 | 15 | 1.0 | 6.9 | 0.50* | 3.4* | ||
R | 7.0 | 48 | 3.7 | 26 | 1.8 | 12 | 1.0 | 6.9 | ||
2000 | 1093 | 0.5 | 1.9 | 13 | 0.80 | 5.5 | 0.35 | 2.4 | – | – |
1 | 2.3 | 16 | 1.0 | 6.9 | 0.47 | 3.2 | 0.20* | 1.4* | ||
R | 4.2 | 29 | 2.1 | 14 | 1.0 | 6.9 | 0.55 | 3.8 | ||
2100 | 1149 | 0.5 | 0.80 | 5.5 | 0.03* | 2.1* | – | – | – | – |
1 | 1.0 | 6.9 | 0.43 | 3.0 | – | – | – | – | ||
R | 2.3 | 16 | 1.2 | 8.3 | 0.60 | 4.1 | – | – |
*Significant extrapolation
Low Cycle Fatigue
HAYNES® 230® alloy exhibits excellent low cycle fatigue properties at elevated temperature. Results shown below are for strain-controlled tests run in the temperature range from 800 to 1800°F (425 to 980°C). Samples were machined from plate. Tests were run with fully reversed strain (R=-1) at a frequency of 20 cpm (0.33 Hz).
Comparative Low Cycle Fatigue Properties
The graph below compares the low cycle fatigue lives of a number of alloys tested at 800°F (427°C) in both the as-received and 1400°F (760°C)/1000 hour pre-exposed condition. Samples were machined from plate or bar, after exposure for exposed samples. Tests were again run with fully reversed strain (R=-1) at a frequency of 20 cpm (0.33 Hz). TSR=Total Strain Range.
800°F (425°C) LCF Life for Various Alloys
Compilation of axial LCF test results (R=-1, f=0.33 Hz)
Temperature |
Δεtot/% |
Ni, Cycles to Initiation |
Nf, Cycles to Failure |
|
°F | °C | |||
800 | 427 | 1.50 | 2230 | 2398 |
1.00 | 8480 | 8742 | ||
0.80 | 14,918 | 16,575 | ||
0.65 | 45,127 | 46,523 | ||
0.55 | 103,910 | 115,456 | ||
1000 | 538 | 1.50 | 1329 | 1540 |
1.25 | 1974 | 2368 | ||
1.00 | 3330 | 4413 | ||
0.80 | 7864 | 8734 | ||
0.70 | 8423 | 9876 | ||
0.60 | 38,696 | 40,604 | ||
0.56 | 73,014 | 74,132 | ||
0.53 | -- | 200,005* | ||
0.50 | -- | 201,190* | ||
1200 | 649 | 1.25 | 1022 | 1257 |
1.00 | 1852 | 2254 | ||
0.80 | 3431 | 4248 | ||
0.60 | 8962 | 11,058 | ||
0.50 | 82,275 | 85,563 | ||
0.45 | -- | 200,002* | ||
0.40 | -- | 200,005* | ||
1400 | 760 | 0.80 | 1896 | 2218 |
0.40 | 20,519 | 21,564 | ||
0.40 | 43,915 | 45,279 | ||
0.30 | -- | 203,327* | ||
1400 | 760 | 1.00 | 870 | 1097 |
1.00 | 827 | 990 | ||
0.70 | 3166 | 3622 | ||
0.50 | 8153 | 8490 | ||
0.40 | 51,285 | 57,819 | ||
0.40 | 68,451 | 75,470 | ||
0.38 | 95,165 | 96,844 | ||
0.37 | 91,879 | 97,612 | ||
0.35 | -- | 202,920* | ||
0.30 | -- | 150,000* | ||
1600 | 871 | 0.70 | 1279 | 1504 |
0.50 | 3939 | 4299 | ||
0.50 | 3176 | 3473 | ||
0.40 | 9712 | 10,837 | ||
0.40 | 9296 | 10,781 | ||
0.35 | 19,179 | 20,964 | ||
0.31 | 61,898 | 63,253 | ||
0.30 | 65,691 | 66,926 | ||
0.25 | -- | 200,770* | ||
1800 | 982 | 0.60 | 818 | 1218 |
0.50 | 1506 | 2582 | ||
0.40 | 3520 | 4223 | ||
0.40 | 3070 | 4784 | ||
0.30 | 19,810 | 21,311 | ||
0.30 | 13,904 | 19,200 | ||
0.25 | 105,140 | 106,020 | ||
0.25 | 116,960 | 119,890 |
* Indicates a run-out.
Tensile Properties
Tensile Properties of 230® Sheet
Test Temperature | 0.2%Yield Strength | Ultimate Tensile Strength | Elongation | |||
°F | °C | ksi | MPa | ksi | MPa | % |
70 | 21 | 60.4 | 417 | 121.4 | 837 | 47.3 |
1000 | 538 | 42.6 | 294 | 100.1 | 690 | 51.7 |
1200 | 649 | 42.2 | 291 | 96.6 | 666 | 56.9 |
1400 | 760 | 45.1 | 311 | 78.0 | 538 | 59.5 |
1600 | 871 | 34.2 | 236 | 44.6 | 308 | 74.2 |
1800 | 982 | 17.8 | 123 | 24.5 | 169 | 54.1 |
2000 | 1093 | 10.0 | 69 | 13.1 | 90 | 37.0 |
Tensile Properties of 230® Plate
Test Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | |||
°F | °C | ksi | MPa | ksi | MPa | % |
70 | 21 | 55.5 | 383 | 123.6 | 852 | 46.0 |
1000 | 538 | 38.1 | 263 | 102.5 | 706 | 53.2 |
1200 | 649 | 38.7 | 267 | 98.2 | 677 | 53.0 |
1400 | 760 | 37.7 | 260 | 77.2 | 533 | 68.0 |
1600 | 871 | 33.9 | 234 | 45.1 | 311 | 94.0 |
1800 | 982 | 16.8 | 116 | 24.3 | 168 | 91.2 |
2000 | 1093 | 9.1 | 63 | 13.2 | 91 | 92.1 |
Comparison of Yield Strengths (Plate)
Thermal Stability
HAYNES® 230® alloy exhibits excellent retained ductility after long-term thermal exposure at intermediate temperatures. It does not exhibit sigma phase, mu phase, or other deleterious phase formation even after 16,000 hours of exposure at temperatures from 1200 to 1600°F (649 to 871°C). Principal phases precipitated from solid solution are all carbides.
This contrasts markedly with many other solid-solution-strengthened superalloys such as HAYNES® 188 alloy, HAYNES® 625 alloy, and HASTELLOY® X alloy. These alloys all precipitate deleterious phases, which impair both tensile ductility and impact strength.
other solid-solution-strengthened superalloys such as HAYNES® 188 alloy, HAYNES® 625 alloy, and HASTELLOY® X alloy. These alloys all precipitate deleterious phases, which impair both tensile ductility and impact strength.
Room-Temperature Properties after Thermal Exposure
Condition | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation | R.A. | Impact Strength |
ksi | ksi | % | % | ft-lb | |
MA | 58.4 | 123.1 | 50 | 47.2 | 54 |
+ 1200/8,000 hr | 57.9 | 128.0 | 36.4 | 39 | 31.4 |
+ 1200/20,000 hr | 57.6 | 128.4 | 34.8 | 37 | 28.9 |
+ 1200/30,000 hr | 59.4 | 129.9 | 34 | 38.3 | – |
+ 1200/50,000 hr | 61.2 | 131.7 | 33.9 | 36.9 | 25.8 |
+1400/8,000 hr | 59.2 | 129.7 | 32 | 34.3 | 18.7 |
+1400/20,000 hr | 55 | 126.9 | 31.2 | 31.6 | 18.8 |
+1400/30,000 hr | 54.3 | 126.9 | 31.3 | 33.9 | – |
+1400/50,000 hr | 55.2 | 127.7 | 32.2 | 32.5 | 20.7 |
+ 1600/8,000 hr | 54.3 | 122.7 | 36.2 | 34.6 | 21.6 |
+ 1600/20,000 hr | 50.1 | 121.6 | 34.4 | 31.1 | 19.5 |
+ 1600/30,000 hr | 49.6 | 120.0 | 32.1 | 28.6 | – |
+ 1600/50,000 hr | 50.4 | 116.7 | 25.2* | 20.2 | 14.8 |
*BIGM; AGL Elong, which tends to be lower; Other data are 4D Elong.
R.A.= Reduction of Area
Retained Room Temperature Tensile Ductility after 8000 Hour Exposure at Temperature
Exposure Temperature | 230 | 188 | 625 | X |
Room Temperature Tensile Elongation | ||||
°F | % | % | % | |
1200 | 36.4 | 29.1 | 18 | 19 |
1400 | 32 | 10.8 | 13 | 19 |
1600 | 36.2 | 22.2 | 26 | 30 |
Resistance to Grain Growth
HAYNES® 230® alloy exhibits excellent resistance to grain growth at high temperatures. As a consequence of its very stable primary carbides, 230® alloy can be exposed at temperatures as high as 2200°F (1204°C) for up to 24 hours without exhibiting significant grain growth. Materials such as HAYNES® 188 alloy or HASTELLOY® X alloy exhibit greater grain growth under such conditions, as would most iron-, nickel-, or cobalt-base alloys and stainless steels.
Exposure Time | Grain Size for Alloys Exposed at Temperature for Various Times* | |||||
HAYNES® 230® alloy | HAYNES® 188 alloy | HASTELLOY® X alloy | ||||
h | 2150°F (1177°C) | 2200°F (1204°C) | 2150°F (1177°C) | 2200°F (1204°C) | 2150°F (1177°C) | 2200°F (1204°C) |
0 | 4-4 1/2 | 4-4 1/2 | 4-5 | 4-5 | 3 1/2 | 3 1/2 |
1 | 4-5 | 4-4 1/2 | 2-5 | 2-4 | 3 1/2 | 0-1 |
4 | 4-4 1/2 | 4-4 1/2 | 3 1/2 | 3 | 3 1/2 | 0-1 |
24 | 4 | 4-4 1/2 | 0-2 | 1-3 | 00-4 | 0-1 1/2 |
*Plate Product in the fully annealed condition
Physical Properties
Physical Property | British Units | Metric Units | ||
Density | RT |
0.324 lb/in3 |
RT |
8.97 g/cm3 |
Melting Temperature | 2400 - 2570°F | – | 1301 - 1371°C | – |
Electrical Resistivity | RT | 49.2 µohm-in | RT | 125.0 µohm-cm |
200°F | 49.5 µohm-in | 100°C | 125.8 µohm-cm | |
400°F | 49.8 µohm-in | 200°C | 126.5 µohm-cm | |
600°F | 50.2 µohm-in | 300°C | 127.3 µohm-cm | |
800°F | 50.7 µohm-in | 400°C | 128.4 µohm-cm | |
1000°F | 51.5 µohm-in | 500°C | 130.2 µohm-cm | |
1200°F | 51.6 µohm-in | 600°C | 131.2 µohm-cm | |
1400°F | 51.1 µohm-in | 700°C | 130.7 µohm-cm | |
1600°F | 50.3 µohm-in | 800°C | 129.1 µohm-cm | |
1800°F | 49.3 µohm-in | 900°C | 127.1 µohm-cm | |
- | - | 1000°C | 125.0 µohm-cm | |
Thermal Diffusivity | RT |
3.8 x 10-3 in2/sec |
RT |
24.2 x 10-3 cm2/s |
200°F |
4.1 x 10-3 in2/sec |
100°C |
26.8 x 10-3 cm2/s |
|
400°F |
4.7 x 10-3 in2/sec |
200°C |
29.9 x 10-3 cm2/s |
|
600°F |
5.2 x 10-3 in2/sec |
300°C |
32.9 x 10-3 cm2/s |
|
800°F |
5.6 x 10-3 in2/sec |
400°C |
35.7 x 10-3 cm2/s |
|
1000°F |
6.1 x 10-3 in2/sec |
500°C |
38.5 x 10-3 cm2/s |
|
1200°F |
6.5 x 10-3 in2/sec |
600°C |
41.9 x 10-3 cm2/s |
|
1400°F |
6.7 x 10-3 in2/sec |
700°C |
43.0 x 10-3 cm2/s |
|
1600°F |
6.7 x 10-3 in2/sec |
800°C |
43.2 x 10-3 cm2/s |
|
1800°F |
7.3 x 10-3 in2/sec |
900°C |
44.4 x 10-3 cm2/s |
|
- | - | 1000°C |
48.2 x 10-3 cm2/s |
|
Thermal Conductivity | RT |
62 Btu-in/ft2-hr-°F |
RT | 8.9 W/m-°C |
200°F |
71 Btu-in/ft2-hr-°F |
100°C | 10.4 W/m-°C | |
400°F |
87 Btu-in/ft2-hr-°F |
200°C | 12.4 W/m-°C | |
600°F |
102 Btu-in/ft2-hr-°F |
300°C | 14.4 W/m-°C | |
800°F |
118 Btu-in/ft2-hr-°F |
400°C | 16.4 W/m-°C | |
1000°F |
133 Btu-in/ft2-hr-°F |
500°C | 18.4 W/m-°C | |
1200°F |
148 Btu-in/ft2-hr-°F |
600°C | 20.4 W/m-°C | |
1400°F |
164 Btu-in/ft2-hr-°F |
700°C | 22.4 W/m-°C | |
1600°F |
179 Btu-in/ft2-hr-°F |
800°C | 24.4 W/m-°C | |
1800°F |
195 Btu-in/ft2-hr-°F |
900°C | 26.4 W/m-°C | |
- | - | 1000°C | 28.4 W/m-°C | |
Specific Heat | RT | 0.095 Btu/lb-°F | RT | 397 J/kg·°C |
200°F | 0.099 Btu/lb-°F | 100°C | 419 J/kg·°C | |
400°F | 0.104 Btu/lb-°F | 200°C | 435 J/kg·°C | |
600°F | 0.108 Btu/lb-°F | 300°C | 448 J/kg·°C | |
800°F | 0.112 Btu/lb-°F | 400°C | 465 J/kg·°C | |
1000°F | 0.112 Btu/lb-°F | 500°C | 473 J/kg·°C | |
1200°F | 0.134 Btu/lb-°F | 600°C | 486 J/kg·°C | |
1400°F | 0.140 Btu/lb-°F | 700°C | 574 J/kg·°C | |
1600°F | 0.145 Btu/lb-°F | 800°C | 595 J/kg·°C | |
1800°F | 0.147 Btu/lb-°F | 900°C | 609 J/kg·°C | |
- | - | 1000°C | 617 J/kg·°C | |
Mean Coefficient of Thermal Expansion | 70 - 200°F | 6.5 µin/in -°F | 25 - 100°C |
11.8 x 10-6 m/m·°C |
70 - 400°F | 6.9 µin/in -°F | 25 - 200°C |
12.4 x 10-6 m/m·°C |
|
70 - 600°F | 7.2 µin/in -°F | 25 - 300°C |
12.8 x 10-6 m/m·°C |
|
70 - 800°F | 7.4 µin/in -°F | 25 - 400°C |
13.2 x 10-6 m/m·°C |
|
70 - 1000°F | 7.6 µin/in -°F | 25 - 500°C |
13.6 x 10-6 m/m·°C |
|
70 - 1200°F | 8.0 µin/in -°F | 25 - 600°C |
14.1 x 10-6 m/m·°C |
|
70 - 1400°F | 8.3 µin/in -°F | 25 - 700°C |
14.7 x 10-6 m/m·°C |
|
70 - 1600°F | 8.6 µin/in -°F | 25 - 800°C |
15.2 x 10-6 m/m·°C |
|
70 - 1800°F | 8.9 µin/in -°F | 25 - 900°C |
15.7 x 10-6 m/m·°C |
|
- | - | 25 - 1000°C |
16.1 x 10-6 m/m·°C |
|
Dynamic Modulus of Elasticity | RT |
30.3 x 106 psi |
RT | 209 GPa |
200°F |
30.1 x 106 psi |
100°C | 207 GPa | |
400°F |
29.0 x 106 psi |
200°C | 200 GPa | |
600°F |
27.8 x 106 psi |
300°C | 193 GPa | |
800°F |
26.8 x 106 psi |
400°C | 186 GPa | |
1000°F |
25.9 x 106 psi |
500°C | 181 GPa | |
1200°F |
24.9 x 106 psi |
600°C | 175 GPa | |
1400°F |
23.6 x 106 psi |
700°C | 168 GPa | |
1600°F |
22.2 x 106 psi |
800°C | 159 GPa | |
1800°F |
20.7 x 106 psi |
900°C | 150 GPa | |
2000ºF |
19.1 x 106 psi |
1000°C | 141 GPa | |
Dynamic Shear Modulus | RT |
11.5 106 psi |
RT | 79 GPa |
200°F |
11.4 106 psi |
100°C | 79 GPa | |
400°F |
11.0 106 psi |
200°C | 76 Gpa | |
600°F |
10.5 x 106 psi |
300°C | 73 GPa | |
800°F |
10.1 x 106 psi |
400°C | 70 GPa | |
1000°F |
9.7 x 106 psi |
500°C | 67 GPa | |
1200°F |
9.3 x 106 psi |
600°C | 64 GPa | |
1400°F |
8.8 x 106 psi |
700°C | 61 GPa | |
1600°F |
8.2 x 106 psi |
800°C | 57 GPa | |
1800°F |
7.6 x 106 psi |
900°C | 52 GPa | |
2000°F |
7.0 x 106 psi |
1000°C | 48 GPa | |
Poisson’s Ratio | RT | 0.31 | RT | 0.31 |
200°F | 0.31 | 100°C | 0.31 | |
400°F | 0.32 | 200°C | 0.32 | |
600°F | 0.32 | 300°C | 0.32 | |
800°F | 0.33 | 400°C | 0.33 | |
1000°F | 0.33 | 500°C | 0.33 | |
1200°F | 0.34 | 600°C | 0.34 | |
1400°F | 0.34 | 700°C | 0.34 | |
1600°F | 0.35 | 800°C | 0.34 | |
1800°F | 0.36 | 900°C | 0.35 |
*RT= Room Temperature
Thermal Expansion Characteristics
HAYNES® 230® alloy has relatively low thermal expansion characteristics compared to most high-strength superalloys, iron-nickel-chromium alloys, and austenitic stainless steels. This means lower thermal stresses in service for complex component fabrications, as well as tighter control over critical part dimensions and clearances.
Oxidation Resistance
HAYNES® 230® alloy exhibits excellent resistance to both air and combustion gas oxidizing environments, and can be used for long-term continuous exposure at temperatures up to 2100°F (1150°C). For exposures of short duration, 230® alloy can be used at higher temperatures.
Schematic Representation of Metallographic Technique used for
Evaluating Oxidation Tests
Comparative Dynamic Oxidation
Alloy | 1600°F (870°C), 2000 h, 30-min cycles | 1800°F (980°C), 1000 h, 30-min cycles | 2000°F (1090°C), 500 h, 30-min cycles | 2100°F (1150°C), 200 h, 30-min cycles | ||||||||||||
Metal Loss | Average Metal Affected | Metal Loss | Average Metal Affected | Metal Loss | Average Metal Affected | Metal Loss | Average Metal Affected | |||||||||
mils | µm | mils | µm | mils | µm | mils | µm | mils | µm | mils | µm | mils | µm | mils | µm | |
188 | 1.1 | 28 | 2.9 | 74 | 1.1 | 28 | 3.2 | 81 | 10.9 | 277 | 13.1 | 333 | 8 | 203 | 9.7 | 246 |
230® | 0.9 | 23 | 3.9 | 99 | 2.8 | 71 | 5.6 | 142 | 7.1 | 180 | 9.9 | 251 | 6.4 | 163 | 13.1 | 333 |
617 | 2 | 51 | 7.8 | 198 | 2.4 | 61 | 5.7 | 145 | 13.3 | 338 | 20.9 | 531 | 13.8 | 351 | 15.3 | 389 |
625 | 1.2 | 30 | 2.2 | 56 | 3.7 | 94 | 6 | 152 | – | – | Consumed | – | – | – | – | |
556® | 1.5 | 38 | 3.9 | 99 | 4.1 | 104 | 6.7 | 170 | 9.9 | 251 | 12.1 | 307 | 11.5 | 292 | 14 | 356 |
X | 1.7 | 43 | 5.3 | 135 | 4.3 | 109 | 7.3 | 185 | 11.6 | 295 | 14 | 356 | 13.9 | 353 | 15.9 | 404 |
HR-120® | – | – | – | – | 6.3 | 160 | 8.3 | 211 | – | – | – | – | – | – | – | – |
RA330 | 2.5 | 64 | 5 | 127 | 8.7 | 221 | 10.5 | 267 | 15.4 | 391 | 17.9 | 455 | 11.5 | 292 | 13 | 330 |
HR-160® | – | – | – | – | 5.4 | 137 | 11.9 | 302 | 12.5 | 18.1 | 460 | 8.7 | 221 | 15.5 | 394 | |
310SS | 6 | 152 | 7.9 | 201 | 16 | 406 | 18.3 | 465 | – | – | – | – | – | – | Consumed | |
800H | 3.9 | 99 | 9.4 | 239 | 22.9 | 582 | Through Thickness | – | – | Consumed after 300 h | – | – | Consumed |
Burner rig oxidation tests were conducted by exposing samples of 3/8” x 2.5” x thickness (9mm x 64 mm x thickness), in a rotating holder to the products of combustion of 2 parts No. 1 and 1 part No. 2 fuel burned at a ratio of air to fuel of about 50:1. Gas velocity was about 0.3 mach. Samples were automatically removed from the gas stream every 30 minutes and fan-cooled to near ambient temperature and then reinserted into the flame tunnel.
Comparative Oxidation in Flowing Air 2100°F (1150°C) for 1008 Hours
Microstructures shown are for coupons exposed for 1008 hours at 2100°F (1150°C) in air flowing 7.0 feet/minute (2.1 m/minute) past the samples. Samples were descaled by cathodically charging the coupons while they were immersed in a molten salt solution. The black area shown at the top of each picture represents actual metal loss due to oxidation. The data clearly show HAYNES® 230® alloy to be superior to both INCONEL alloy 601 and alloy 800H, as well as the other heat-resistant materials listed in the table above.
230® alloy
Average Metal Affected
= 3.4 mils (86 µm)
INCONEL alloy 601
Average Metal Affected
= 5.3 mils (135 µm)
Alloy 800H
Average Metal Affected
= 8.9 mils (226 µm)
Water Vapor Testing
Alloy |
1008 hours @ 1600F Cycled 1x/week in air+10%H2O |
1008 hours @ 1600F Cycled 1x/week in air+20%H2O |
6 months @ 1400F Cycled 1x/week in air+10%H2O |
|||||||||
Metal Loss | Average Metal Affected | Metal Loss | Average Metal Affected | Metal Loss | Average Metal Affected | |||||||
mils per side | mm per side | mils per side | mm per side | mils per side | mm per side | mils per side | mm per side | mils per side | mm per side | mils per side | mm per side | |
230® | 0.07 | 0.002 | 0.53 | 0.013 | 0.03 | 0.001 | 0.21 | 0.005 | 0.05 | 0.001 | 0.35 | 0.009 |
625 | 0.11 | 0.003 | 0.5 | 0.013 | 0.04 | 0.001 | 0.27 | 0.007 | - | - | - | - |
X | 0.03 | 0.001 | 0.5 | 0.013 | 0.04 | 0.001 | 0.3 | 0.008 | - | - | - | - |
253MA | 0.66 | 0.017 | 1.59 | 0.040 | 0.08 | 0.002 | 0.68 | 0.017 | - | - | - | - |
800HT | - | - | - | - | - | - | - | - | 0.12 | 0.003 | 0.82 | 0.021 |
347SS | 0.86 | 0.022 | 1.48 | 0.038 | 0.18 | 0.005 | 0.18 | 0.005 | 0.46 | 0.012 | 1.26 | 0.032 |
Amount of metal affected for high‐temperature sheet (0.060 ‐ 0.125”) alloys exposed for 360 days (8,640 h) in flowing air.
Alloy | 1600°F | 1800°F | 2000°F | 2100°F | ||||||||||||
Metal Loss* | Average Metal Affected | Metal Loss* | Average Metal Affected | Metal Loss* | Average Metal Affected | Metal Loss* | Average Metal Affected | |||||||||
mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | |
625 | 0.3 | 8 | 1.4 | 36 | – | – | – | – | – | – | – | – | – | – | – | – |
230® | 0.2 | 5 | 1.4 | 36 | 0.1 | 3 | 2.5 | 64 | 3.4 | 86 | 11 | 279 | 28.5 | 724 | 34.4 | 874 |
617 | 0.3 | 8 | 1.6 | 41 | – | – | – | – | – | – | – | – | – | – | – | – |
HR‐120® | 0.3 | 8 | 1.6 | 41 | 0.5 | 13 | 3.3 | 84 | 18.1 | 460 | 23.2 | 589 | 33.6 | 853 | 44 | 1118 |
25 | 0.3 | 8 | 1.7 | 43 | – | – | – | – | – | – | – | – | – | – | – | – |
188 | 0.2 | 5 | 1.8 | 46 | – | – | – | – | – | – | – | – | – | – | – | – |
556® | 0.3 | 8 | 1.9 | 48 | 0.5 | 13 | 6.2 | 157 | 15 | 381 | 24.1 | 612 | – | – | – | – |
X | 0.3 | 8 | 2.2 | 56 | 0.2 | 5 | 2.8 | 71 | 17.1 | 434 | 26.2 | 665 | 51.5 | 1308 | 55.4 | 1407 |
800HT | 0.4 | 10 | 2.9 | 74 | – | – | – | – | – | – | – | – | – | – | – | – |
HR-160® | – | – | – | – | 1.7 | 43 | 13.7 | 348 | 7.2 | 183 | 30.8 | 782 | 12 | 305 | 45.6 | 1158 |
*Metal loss was calculated from final and initial metal thicknesses; i.e. ML = (OMT – FMT) /2
Static Oxidation Comparison
Scroll for more Data
Alloy | Comparative Oxidation Resistance in Flowing Air, 1008 Hours* | |||||||||||||||
1800°F (982°C) | 2000°F (1093°C) | 2100°F (1149°C) | 2200°F (1204°C) | |||||||||||||
Metal Loss* | Average Metal Affected | Metal Loss* | Average Metal Affected | Metal Loss* | Average Metal Affected | Metal Loss* | Average Metal Affected | |||||||||
mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | mils | μm | |
230® | 0.2 | 5 | 1.5 | 38 | 0.5 | 13 | 3.3 | 84 | 1.2 | 30 | 4.4 | 112 | 4.7 | 119 | 8.3 | 211 |
188 | 0.1 | 3 | 1.1 | 28 | 0.5 | 13 | 3.7 | 94 | 8.6 | 218 | 10.7 | 272 | 5.2 | 132 | 48.2 | 1224 |
601 | 0.4 | 10 | 1.7 | 43 | 1.3 | 33 | 3.8 | 97 | 2.8 | 71 | 6.5 | 165 | 4.4 | 112 | 7.5 | 191 |
617 | 0.3 | 8 | 2 | 51 | 0.6 | 15 | 3.8 | 97 | 1 | 25 | 5.2 | 132 | 10.7 | 272 | 12.6 | 320 |
X | 0.2 | 5 | 1.5 | 38 | 1.3 | 33 | 4.4 | 112 | 3.6 | 91 | 6.1 | 115 | – | – | – | – |
800HT | 0.5 | 13 | 4.1 | 104 | 7.6 | 193 | 11.6 | 295 | 12.4 | 315 | 15 | 381 | – | – | – | – |
446 SS | – | – | – | – | 13 | 330 | 14.4 | 366 | – | – | >21.5 | >546 | – | – | – | – |
316 SS | 12.3 | 312 | 14.2 | 361 | – | – | >17.5 | >445 | – | – | >17.5 | >445 | – | – | – | – |
*Metal Loss + Average Internal Penetration.
Nitriding Resistance
HAYNES® 230® alloy is one of the most nitriding resistant materials commercially available. Tests were performed in flowing ammonia at 1200°F (650°C) and 1800°F (980°C) for 168 hours. Nitrogen absorption was determined by chemical analysis of samples before and after exposure and knowledge of the exposed specimen area.
Alloy |
Nitrogen Absorption (mg/cm2) |
||
1200°F (649°C) | 1800°F (982°C) | 2000°F (1093°C) | |
230® | 0.7 | 1.4 | 1.5 |
600 | 0.8 | 0.9 | 0.3 |
625 | 0.8 | 2.5 | 3.3 |
X | 1.7 | 3.2 | 3.8 |
RA330® | – | 3.9 | 3.1 |
800H | 4.3 | 4.0 | 5.5 |
316 SS | 6.9 | 6.0 | 3.3 |
310 SS | 7.4 | 7.7 | 9.5 |
304 SS | 9.8 | 7.3 | 3.5 |
Carburization Resistance
HAYNES® 230® alloy exhibits good resistance to carburization when compared with many other industrial alloys. Test results were generated for 500 hours exposure in packed graphite at 1800°F (980°C). Carbon absorption was determined by chemical analysis of samples before and after exposure and knowledge of the exposed specimen area.
Hydrogen Embrittlement
Notched tensile tests performed in hydrogen and air reveal that 230® alloy is resistant to hydrogen embrittlement. Tests were performed in MIL-P-27201B grade hydrogen, with a crosshead speed of 0.005 in/min (0.13 mm/min). Specimens were notched with a KT value of 8.0.
Test Temperature | Hydrogen Pressure | Ratio of Notched Tensile Strength, Hydrogen/Air | ||
°F | °C | psig | MPa | – |
70 | 21 | 3000 | 21 | 0.92 |
70 | 21 | 5000 | 34 | 1.07 |
Aqueous Corrosion Resistance
Coupons were exposed for four 24-hour periods in various acids at the stated temperatures, and general corrosion rates were calculated from weight change measurements.
Alloy | Corrosion Rate (mils per year) | ||
– |
10% HNO3 Boiling |
10% H2SO4 150°F (66°C) |
10% HCl 150°F (66°C) |
230® | 0.3 | 0.6 | 112 |
625 | 0.7 | 0.4 | 65 |
600 | 0.8 | 41.8 | 366 |
316 SS | 1.0 | 17.8 | 3408 |
X | – | <0.1 | 99 |
Hardness and Grain Size
Solution Annealed Room Temperature Hardness
Form | Hardness, HRBW | Typical ASTM Grain Size |
Sheet | 92 | 4 – 6.5 |
Plate | 92 | 3 – 5 |
Bar | 90 | 3 – 5 |
HRBW = Hardness Rockwell “B”, Tungsten Indentor.
Applications
Nitric acid catalyst grids support made from
HAYNES® 230® alloy plate and bar.
Excellent creep strength at 1700°F (927°C)
makes the alloy highly suitable for this application.
Textron Lycoming gas turbine engine combustor made of HAYNES® 230® alloy.
Prototype 230® combustor for Dresser-Rand DR-990 industrial turbine.
Resistance-heated 230® superheater tubes at the Penn State Applied Research Laboratory. Used to produce about 1625°F (885°C) high-pressure steam.
Prototype 230® high-temperature expansion bellows made of 0.020-inch (0.5mm) thick sheet in a catalytic cracker configuration.
This horizontal electrically fired 230® retort replaced an alloy 600 retort which lasted only an average of eight months in 1400 to 2200°F (760 to 1205°C) service in hydrogen atmosphere. The 230 retort was still in excellent condition after 24 months service, as shown.
Wire annealing fixture of 230® alloy reduces thermal mass and cycle times after replacing massive carbon-steel “stub” used previously.
Fabricated heat-treating basket for vacuum furnace application to 2300°F (1260°C). Made from 1/2-inch (12.7 mm) diameter 230® bar.
This striking shot of a HAYNES® 230® heat-treat fixture was taken at a leading off-road automotive equipment plant. This conveyor fixture operates at 1550°F (845°C) with a subsequent water quench followed by a four hour cycle at 1050°F (565°C).
HAYNES® 230® damper atop this glass melting furnace withstands 2300°F (1260°C) for short times and 2000°F (1095°C) for sustained periods.
Cast heat-treat basket of 230® alloy in use at Alloy Foundries, Division of the Eastern Company, Naugatuck, Connecticut.
Substrate holder and box of 230® alloy resist temperatures of 1650°F (900°C) during the production of semiconductors.
230® retorts operate at 2100°F (1150°C) with a hydrogen atmosphere (inside) and combustion products outside.
Fabrication
Heat Treatment
HAYNES® 230® alloy is normally final solution heat-treated at 2250°F (1230°C) for a time commensurate with section thickness. Solution heat-treating can be performed at temperatures as low as about 2125°F (1165°C), but resulting material properties will be altered accordingly. Annealing during fabrication can be performed at even lower temperatures, but a final, subsequent solution heat treatment is needed to produce optimum properties and structure. Please refer to following sections and publication click here for additional information.
Typical Hardness Properties
Effect of Cold Reduction Upon Room-Temperature Tensile Properties*
Cold Reduction | Subsequent Anneal Temperature | Yield Strength 0.2% Offset | Ultimate Tensile Strength | Elongation | ||
% | None | ksi | MPa | ksi | MPa | % |
0 | 61.8 | 425 | 128.2 | 885 | 46.6 | |
10 | 104.0 | 715 | 144.5 | 995 | 31.8 | |
20 | 133.4 | 920 | 163.9 | 1130 | 16.8 | |
30 | 160.1 | 1105 | 187.5 | 1295 | 9.7 | |
40 | 172.4 | 1190 | 201.5 | 1390 | 7.5 | |
50 | 184.6 | 1275 | 214.6 | 1480 | 6.0 | |
10 | 1950°F (1066°C) | 91.9 | 635 | 143.5 | 990 | 32.9 |
20 | 80.8 | 555 | 141.9 | 980 | 35.6 | |
30 | 75.9 | 525 | 142.1 | 980 | 35.7 | |
40 | 81.2 | 560 | 145.5 | 1005 | 32.3 | |
50 | 86.1 | 595 | 147.7 | 1020 | 34.6 | |
10 | 2050°F (1121°C) | 80.8 | 555 | 139.0 | 960 | 36.5 |
20 | 65.4 | 450 | 135.7 | 935 | 39.2 | |
30 | 72.0 | 495 | 140.0 | 965 | 37.6 | |
40 | 76.1 | 525 | 142.3 | 980 | 35.5 | |
50 | 80.8 | 555 | 143.9 | 990 | 36.3 | |
10 | 2150°F (1177°C) | 55.5 | 385 | 129.5 | 895 | 43.7 |
20 | 64.4 | 445 | 134.3 | 925 | 40.1 | |
30 | 70.2 | 485 | 138.1 | 950 | 38.5 | |
40 | 73.4 | 505 | 139.2 | 960 | 38.1 | |
50 | 71.9 | 495 | 137.7 | 950 | 39.1 |
*Based upon rolling reductions taken upon 0.120-inch (3.0 mm) thick sheet.
Duplicate tests.
Microstructure
(ASTM 5 grain size) Annealed at 2250°F (1230°C)
Etchant 95ml
HCl plus 5 gm
oxalic acid, 4 volts
Welding
HAYNES® 230® alloy is readily welded by Gas Tungsten Arc Welding (GTAW), Gas Metal Arc Welding (GMAW), Shielded Metal Arc Welding (SMAW), and resistance welding techniques. Its welding characteristics are similar to those for HASTELLOY® X alloy. Submerged Arc Welding (SAW) is not recommended as this process is characterized by high heat input to the base metal and slow cooling of the weld. These factors can increase weld restraint and promote cracking.
Base Metal Preparation
The welding surface and adjacent regions should be thoroughly cleaned with an appropriate solvent prior to any welding operation. All greases, oils, cutting oils, crayon marks, machining solutions, corrosion products, paint, scale, dye penetrant solutions, and other foreign matter should be completely removed. It is preferable, but not necessary, that the alloy be in the solution- annealed condition when welded.
Filler Metal Selection
HAYNES 230-W™ filler wire (AWS A5.14, ERNiCrWMo-1) is recommended for joining 230 alloy by Gas Tungsten Arc or Gas Metal Arc welding. Coated electrodes of 230-W alloy are also available for Shielded Metal Arc welding. For dissimilar metal joining of 230 alloy to nickel-, cobalt-, or iron- base materials, 230-W filler wire, HAYNES 556™ alloy (AWS A5.9 ER3556, AMS 5831), HASTELLOY S alloy (AMS 5838) or HASTELLOY W alloy (AMS 5786, 5787) welding products may all be considered, depending upon the particular case. Please click here or the Haynes Welding SmartGuide for more information.
Preheating, Interpass Temperatures, and Postweld Heat Treatment
Preheat is not required. Preheat is generally specified as room temperature (typical shop conditions). Interpass temperature should be maintained below 200°F (93°C). Auxiliary cooling methods may be used between weld passes, as needed, providing that such methods do not introduce contaminants. Postweld heat treatment is not generally required for 230 alloy. For further information, please click here.
Nominal Welding Parameters
Details for GTAW, GMAW and SMAW welding are given here. Nominal welding parameters are provided as a guide for performing typical operations and are based upon welding conditions used in our laboratories.
Room Temperature Transverse Weld Tensile Results – GTAW of 0.205-in / 5.2 mm Plate
0.2% 耐力 | 極限引張強さ | 伸び | 破断位置 | ||
ksi | MPa | ksi | MPa | % | |
60.2 | 415 | 117.7 | 812 | 29.6 | Weld Metal |
58.4 | 403 | 113.4 | 782 | 28.2 | Weld Metal |
Transverse Weld Tensile Results – GTAW of 0.5-in / 12.7 mm Plate
試験温 | 0.2% 耐力 | 極限引張強さ | 伸び | 破断位置 | |||
°F | °C | ksi | MPa | ksi | MPa | % | |
Room Temperature | 65.5 | 452 | 126.8 | 874 | 37.3 | Weld Metal | |
63.8 | 440 | 120 | 827 | 27 | Weld Metal | ||
1600 | 871 | 38.4 | 265 | 60.6 | 418 | 44.9 | Base Metal |
34.8 | 240 | 61.8 | 426 | 28.9 | Weld Metal |
Room Temperature Transverse Weld Tensile Results – GMAW of 2.0-in / 50.8 mm Plate
極限引張強さ | 破断位置 | |
ksi | MPa | |
116 | 800 | Weld Metal |
117 | 807 | Weld Metal |
115 | 793 | Weld Metal |
116 | 800 | Weld Metal |
Room Temperature Transverse Weld Tensile Results – GTAW of 3.0-in / 76.2 mm Plate
Sample Location | 0.2% 耐力 | 極限引張強さ | 伸び | 絞り | 破断位置 | ||
ksi | MPa | ksi | MPa | % | % | ||
Weld Face | 74.1 | 511 | 109.5 | 755 | 27.2 | 30.9 | Weld Metal |
74.6 | 514 | 110.7 | 763 | 34.8 | 44.4 | Weld Metal | |
Weld Center | 76.5 | 527 | 113.3 | 781 | 33.1 | 37.6 | Weld Metal |
76.8 | 530 | 111.2 | 767 | 26.7 | 32.9 | Weld Metal | |
Weld Root | 74.8 | 516 | 109.9 | 758 | 19.6 | 24.1 | Weld Metal |
74 | 510 | 115 | 793 | 31 | 41.3 | Weld Metal |
HAYNES® 230-W® All-Weld-Metal Tensile Test Results
試験温 | 0.2% 耐力 | 極限引張強さ | 伸び | |||
°F | °C | ksi | MPa | ksi | MPa | % |
RT | RT | 75.7 | 520 | 112.6 | 775 | 27.3 |
1800 | 980 | 21.2 | 145 | 22.7 | 155 | 24.6 |
Specifications and Codes
Specifications
HAYNES® 230® alloy (N06230) | |
Sheet, Plate & Strip | AMS 5878SB 435/B 435P= 43 |
Billet, Rod & Bar | AMS 5891SB 572/B 572 B 472P= 43 |
Coated Electrodes | SFA 5.11/ A 5.11 (ENiCrWMo-1)F= 43 |
Bare Welding Rods & Wire | SFA 5.14/ A 5.14 (ERNiCrWMo-1)AMS 5839F= 43 |
Seamless Pipe & Tube | SB 622/B 622P= 43 |
Welded Pipe & Tube | SB 619/B 619SB 626/B 626P= 43 |
Fittings | SB 366/B 366P= 43 |
Forgings | AMS 5891SB 564/B 564P= 43 |
DIN | 17744 No. 2.4733NiCr22W14Mo |
Others | – |
Codes
HAYNES® 230® alloy (N06230) | |||
ASME | Section l |
1650°F (899°C)1 |
|
Section lll | Class 1 | – | |
Class 2 | – | ||
Class 3 | – | ||
Section lV | HF-300.2 |
500°F (132°C)1 |
|
Section Vlll | Div. 1 |
1800°F (982°C)1 |
|
Div. 2 | – | ||
Section Xll |
650°F (343°C)1 |
||
B16.5 |
1500°F (816°C)11 |
||
B16.34 |
1500°F (816°C)6 |
||
B31.1 | – | ||
B31.3 |
1650°F (900°C)1 |
||
MMPDS | 6.3.9 |
1Plate, Sheet, Bar, Forgings, fittings, welded pipe/tube, seamless pipe/tube
2Plate, Forgings
3Plate, Bar, Forgings, seamless pipe/tube
4This is the maximum design temperature for water service construction. Several ASME Code Cases govern additional usage:
a) Per Section I Code Case 2665, 1300°F (704°C) is the maximum design temperature for molten nitrate salt wetted construction.
b) Per Section I Code Case 2756, autogenous welds can be used in the design range of 1000°F and 1250°F (538-677°C).
c) Weld strength reduction factors are governed by Section I PG-26 and Code Case 2805.
5Section VIII Division 1 Code Case 2671 contains an external pressure chart for 1800°F (982°C).
6For any bolts created from this material, 1650°F is the maximum design temperature. See Section VIII Division 1 Code Case 2775.
7B16 Case 5 allows for higher pressure-temperature ratings for valves made of this material.
Disclaimer
Haynes International makes all reasonable efforts to ensure the accuracy and correctness of the data displayed on this site but makes no representations or warranties as to the data’s accuracy, correctness or reliability. All data are for general information only and not for providing design advice. Alloy properties disclosed here are based on work conducted principally by Haynes International, Inc. and occasionally supplemented by information from the open literature and, as such, are indicative only of the results of such tests and should not be considered guaranteed maximums or minimums. It is the responsibility of the user to test specific alloys under actual service conditions to determine their suitability for a particular purpose.
For specific concentrations of elements present in a particular product and a discussion of the potential health affects thereof, refer to the Safety Data Sheets supplied by Haynes International, Inc. All trademarks are owned by Haynes International, Inc., unless otherwise indicated.
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