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AWS Class ER310 MIG & TIG Welding Wire – Composition, Properties, and Uses

AWS Class ER310 MIG & TIG

If you are involved in welding processes, you have probably heard of the American Welding Society (AWS) and its classification systems. AWS class ER310 is one such classification that is widely used in welding. ER310 is a popular MIG and TIG welding wire used in various welding applications. This blog post will provide everything you need about AWS Class ER310 MIG & TIG, including its composition, physical and mechanical properties, uses, heat treatment, and corrosion resistance.

What is AWS Class ER310 MIG & TIG?

AWS Class ER310 is a type of stainless steel welding rod. This welding rod is mainly used for MIG (Metal Inert Gas) and TIG (Tungsten Inert Gas) welding, both effective methods of joining metals like stainless steel. The ER310 welding rod consists of an austenitic stainless steel core wire coated with layers of high-alloy elements such as chromium and nickel for enhanced corrosion resistance. Thanks to its high strength and corrosion resistance properties, it is often used in food processing lines, chemical plants or other industries that require hygiene and safety. Additionally, this type of welding rod offers excellent weldability properties that make it easy to use when completing complex projects accurately.

ER310 MIG & TIG Welding Wire Composition

AWS Class ER310 MIG & TIG is a high-alloy welding wire classified as a stainless steel electrode. It contains mostly iron but has significant amounts of nickel, chromium, and molybdenum, among other elements. It welds materials that require similar metallurgical properties, such as stainless steel, nickel alloys, and heat-resistant steel.

C Cr Ni Mo Mn Si P S Cu
0.08-0.15 25.0-28.0 20.0-22.5 0.75 1.0-2.5 0.30-0.65 0.03 0.03 0.75

ER310 MIG & TIG Coated Wire Physical Properties

AWS Class ER310 MIG & TIG is a versatile welding wire for TIG and MIG applications. It has excellent resistance to rust, high temperatures, and corrosion, making it ideal for welding in harsh environments. Its diameter ranges from 0.8mm to 2.4mm, making it suitable for welding different thicknesses of materials. The wire comes in spools and coils for easy storage and usage.

ER310 MIG & TIG Welding Wire Mechanical Properties

AWS Class ER310 MIG & TIG has exceptional mechanical properties, including high tensile strength, ductility, and toughness. It also has a low carbon content, making it perfect for welding materials, such as stainless steel, requiring low carbon concentration.

Yield, kpsi: 60
Tensile Strength, kpsi: 89
Elongation%, min: 34

ER310 MIG & TIG Coated Wire Trade Name

Class UNS Oxford Alloys BOHLER
ER310 S31080 Alloy 310 BOHLER THERMAINT 310

ER310 MIG & TIG Welding Wire Parameters

Diameter Process Volt Amps
in (mm)
.035 (0.9) GTAW 12-15 60-90
.045 (1.14) GTAW 13-16 80-110
1/16” (1.6) GTAW 14-16 90-130
3/32” (2.4) GTAW 15-20 120-175

ER310 MIG & TIG Coated Wire Uses

AWS Class ER310 MIG & TIG is used in various welding applications, including fabricating stainless steel pipes, tanks, and other equipment that requires high strength and corrosion resistance. It is also used in welding heat-resistant steel, such as furnace linings, turbine components, and exhaust pipes.

ER310 MIG & TIG Welding Wire Heat Treatment

AWS Class ER310 MIG & TIG is designed to be used in the as-welded condition. However, it can be annealed at high temperatures to improve its mechanical properties if needed. The annealing temperature range is between 2000°F to 2100°F, and the cooling rate should be controlled to prevent the wire from cracking.

ER310 MIG & TIG Coated Wire Corrosion Resistance

AWS Class ER310 MIG & TIG has excellent resistance to corrosion, including resistance to sulphuric, nitric, and hydrochloric acids. As a result, it is ideal for welding applications in harsh, acidic, and corrosive environments.

Conclusion

AWS Class ER310 MIG & TIG is a high-alloy welding wire widely used in various welding applications. It has exceptional physical and mechanical properties, including high tensile strength, flexibility, and corrosion resistance. It is suitable for welding materials, including stainless steel, nickel alloys, and heat-resistant steel. If you are looking for a welding wire that can withstand harsh conditions and offer excellent mechanical and corrosion-resistant properties, AWS Class ER310 MIG & TIG is an ideal choice.

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