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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% Yield Strength Ultimate Tensile Strength Elongation Fracture Location
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

Test Temperature 0.2% Yield Strength Ultimate Tensile Strength Elongation Fracture Location
°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

Ultimate Tensile Strength Fracture Location
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% Yield Strength Ultimate Tensile Strength Elongation Reduction
of Area
Fracture Location
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

Test Temperature 0.2% Yield Strength Ultimate Tensile Strength Elongation
°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
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