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Heat Resistant & Cr-Mo
ER90S-B3 for P22 & T22
ER90S-B3 welding wire is an AWS A5.28 low-alloy Cr-Mo solid welding wire for P22, T22 and other compatible 2.25Cr-1Mo steels used in high-temperature piping, boiler, refinery and power-generation applications. ER90S-B3 is a 2.25Cr-1Mo low-alloy welding wire designed for compatible P22 and T22 steels. It is commonly used for high-temperature piping, boilers, pressure vessels, heat exchangers, refineries, petrochemical equipment and power-generation systems.
Heat Resistant & Cr-Mo
ER90S-B9 for P91 & T91
AWS A5.28 ER90S-B9 solid welding wire for P91, T91, F91 and compatible 9Cr-1Mo-V-Nb steels used in high-temperature and creep-resistant applications. ER90S-B9 is a 9% chromium, 1% molybdenum low-alloy welding wire designed for welding compatible heat-resistant steels used in demanding high-temperature service. Its controlled additions of vanadium, niobium and nitrogen support the required weld-metal properties for creep-resistant steel applications.
Heat Resistant & Cr-Mo
ER90S-B91 for P91 Steel
ER90S-B91 welding wire is an AWS A5.28 low-alloy welding wire for P91, T91 and other compatible Grade 91 steels used in high-temperature and creep-resistant applications. ER90S-B91 is a 9Cr-1Mo-V-Nb welding wire designed for compatible P91, T91 and F91 steels. It is commonly used for high-temperature steam piping, boilers, headers, superheaters, reheaters and power-generation equipment where weld-metal chemistry, creep resistance and controlled heat treatment are important.
Heat Resistant & Cr-Mo
ER90S-B92 for P92 & T92
ER90S-B92 welding wire is an AWS A5.28 low-alloy Cr-Mo-W-V-Nb solid welding wire designed for P92, T92 and other compatible Grade 92 steels used in high-temperature and creep-resistant applications. ER90S-B92 is a modified 9Cr welding wire designed for P92, T92 and other compatible Grade 92 steels. With a controlled Cr-Mo-W-V-Nb alloy system, it is used for high-temperature piping, boilers, power-generation equipment and other applications requiring long-term creep resistance.
Heat Resistant & Cr-Mo
ER70S-A1
ER70S-A1 welding wire is an AWS A5.18 low-alloy solid welding wire containing molybdenum, commonly used for welding compatible low-alloy steels in boiler, piping, pressure-vessel and elevated-temperature applications. ER70S-A1 is a molybdenum-alloyed solid welding wire designed for compatible low-alloy steels and elevated-temperature service. It is commonly used for boiler tubes, piping, pressure vessels, heat exchangers and other industrial applications.
Low Alloy & High Strength
ER100S-G
ER100S-G welding wire is an AWS A5.28 high-strength low-alloy solid welding wire classification for applications requiring ER100-strength weld metal and manufacturer-defined alloy chemistry. The G classification does not define one single fixed alloy chemistry, so the actual chemical composition, mechanical properties and application should be verified from the manufacturer's technical documentation and qualified welding procedure.
Low Alloy & High Strength
ER110S-G
ER110S-G is a high-strength low-alloy solid welding wire classified under AWS A5.28. The G classification does not define one single fixed alloy chemistry, so the actual chemical composition, mechanical properties and application should be verified from the manufacturer's technical documentation and qualified welding procedure.
Low Alloy & High Strength
ER120S-G
ER120S-G welding wire is an AWS A5.28 high-strength low-alloy solid welding wire classification for applications requiring ER120-strength weld metal and manufacturer-defined alloy chemistry. The G classification does not define one single fixed alloy chemistry, so the actual chemical composition, mechanical properties, toughness and application should be verified from the manufacturer's technical documentation and qualified welding procedure.
General Welding Consumables
ER70S-2
ER70S-2 is copper-coated low alloy solid wire, suitable for GMAW (MIG/MAG) and GTAW (TIG) welding processes.
General Welding Consumables
ER70S-G
ER70S-G is copper-coated low alloy solid wire, suitable for GMAW (MIG/MAG) and GTAW (TIG) welding processes.
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Practical guides for selecting welding consumables, understanding AWS classifications and solving material-specific welding challenges.
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FeaturedOct 4, 2026
Why Does High-Strength Steel Crack After Welding? What Should I Check?
Why does high-strength steel crack after welding? What should you check before repairing the weld—crack location, timing, welding wire, preheat, or the WPS?
Latest
Oct 1, 2026
Why Is My High-Strength Weld Too Hard? What Should I Check?
Why is my high-strength weld too hard after welding or PWHT? Is the problem the welding wire, HAZ, cooling rate, heat input, or heat treatment?
Sep 30, 2026
Can I Use Carbon Steel Welding Wire for Cr-Mo Steel? What Could Go Wrong?
Can you use ER70S-6 carbon steel welding wire for Cr-Mo steel? What could go wrong, and when should ER80S-B2 or another Cr-Mo welding wire be used instead?
About GD WELD
Specialty Welding Consumables
Looking for a specific or hard-to-source welding grade? Send us your AWS classification, base material, diameter and application. We will help you identify a suitable product and supply solution.
GD WELD is a China-based specialty welding consumables supplier, focused on sourcing and supplying welding wires and electrodes for demanding industrial applications. Specialty Grades · Reliable Sourcing · Technical Matching · Global Supply
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