Applications in Waste Incinerators
HAYNES® HR-160® alloy provides the best combination of resistance to harsh, high-temperature environments and life cycle cost effectiveness of any commercially available alloy. Components produced from HR-160® alloy have exhibited outstanding performance in waste incineration applications. Field trials have demonstrated that component life extensions greater than 10X are possible with direct material substitution. HR-160® alloy utilizes high chromium and silicon contents to promote the formation of a protective oxide scale which resists attack from sulfur, vanadium, chlorides, and other salt deposits. This makes the alloy ideally suited for waste incinerator components operating up to 2200°F (1204°C), such as T/C protection tubes, dampers, tube shields, tube supports, thermos wells, combustion chambers, ducts, heat exchangers, and vortex finders.
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HAYNES® HR-160® Alloy Performance Capability
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Incinerator Type
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Field Test Conditions
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Performance as Compared to Current Material
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Municipal Waste
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800-2000°F (982-1093°C);
sulfur, chlorides, K, Zn, etc.
1300-1400°F (704-760°C);
sulfur chlorides, K, Zn, Pb
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>17x better than stainless steels
9x better than 625
12x better than 825
15x better than 304
>12x better than 446
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Industrial Waste
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1600-1700°F (871-927°C);
sulfur chlorides, K, etc
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>20x better than stainless steels
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Hospital Waste
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1200-1400°F (649-760°C);
sulfur chlorides, Zn, etc.
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>7x better than 304 and 316
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Chemical Waste
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900°F (482°C);
Pb, K, S, P, Zn, and Ca
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15x better than carbon steel and 600
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Product Description
HAYNES® HR-160® alloy is a Ni-Co-Cr-Si alloy with a stable austenitic structure. The alloy is easily fabricated using methods such as gas-tungsten-arc welding (TIG) process or gas-metal-arc welding (MIG) process. HR-160® filler metal is recommended for joining HR-160® alloy; when HR-160® alloy is welded to other alloys, such as stainless steels, 556® filler metal should be used.
Nominal Composition
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Nickel:
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Balance
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Cobalt:
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29
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Chromium:
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28
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Iron:
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2 max.
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Molybdenum:
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1 max.
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Silicon:
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2.75
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Tungsten:
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1 max.
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Manganese:
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0.5
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Titanium:
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0.5
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Carbon:
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0.005
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Field Performance- Municipal Waste Incineration
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Alloy
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Metal Loss
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Maximum Metal Affected
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-
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mils
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mm
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mils
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mm
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HR-160®
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0
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0
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2.0
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0.05
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556®
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9.5
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0.24
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11.0
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0.28
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625
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16.5
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0.42
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17.5
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0.44
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188
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17.0
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0.43
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18.5
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0.47
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825
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21.5
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0.55
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24.5
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0.62
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304SS
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28.0
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0.72
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29.5
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0.75
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446SS
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>23.5
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0.60c
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>23.5
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0.60c
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Carbon Steel
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27.1
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0.69
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30.0
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0.76
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(a) test rack was exposed at 1300-1400F (704-760C) for 2 months
(b) metal loss + maximum internal penetration
(c) sample was perforated
Comparative Stress-Rupture Strengths
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°F
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°C
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HR-160®
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RA333
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800HT
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RA330
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253 MA
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RA85H
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309 SS
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310 SS
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1100
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593
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22.9
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25.0
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-
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-
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-
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-
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-
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-
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1200
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649
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15.6
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16.5
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17.5
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11.0
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14.0
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12.0
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16.0
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9.3
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1300
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764
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10.8
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12.0
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11.0
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-
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8.5
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-
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-
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-
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1400
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760
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7.4
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9.2
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7.3
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4.3
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5.2
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5.0
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5.45
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3.9
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1500
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816
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5.1
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5.7
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5.2
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-
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3.75
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-
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-
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-
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1600
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871
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3.6
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3.1
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3.5
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1.7
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2.5
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2.1
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1.86
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1.65
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1700
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927
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2.5
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1.8
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1.9
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-
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1.65
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-
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-
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-
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1800
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982
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1.8
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1.05
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1.2
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0.63
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1.15
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0.9
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0.63
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0.69
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*ksi can be converted to MPa (megapascals) by multiplying by 6.895