AWS Class ER312 MIG and TIG Filler Welding Wire and Rod

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Weston Stainless, based in Midland, UK, is a trusted provider of high-performance stainless steel welding consumables for industrial processes. Among its niche products, AWS Class ER312 MIG and TIG filler welding wire and rod are formulated for optimum strength and crack resistance. Constructed from high chromium and nickel content austenitic stainless steel, these fillers are suited for welding dissimilar metals and restoring worn parts. Available in wire and rod, ER312 offers outstanding mechanical properties with a high strength weld, great tensile strength, and it‘s ideal for extreme applications under hostile conditions.

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MIG and TIG AWS Class ER312 filler wire and rod contains around 29% chromium, 9% nickel, and a minor amount of molybdenum with high oxidation resistance and toughness. These fillers provide tensile strength of about 800 MPa, yield strength of about 550 MPa, and elongation of 25-30%. Physical properties are density of 7.9 g/cm³ and melting range of 1400-1450°C, which provides superior thermal stability. The high alloy content provides improved resistance to cracking and makes ER312 suitable for welding hard-to-join materials and high-strength applications.

AWS Class ER312 MIG and TIG Filler Welding Wire and Rod Specifications

Classification	AWS A5.9, ER312
Form	MIG spools, TIG cut lengths, Reels and Coils
Type Of Welding	Inert Gas Welding
Current	MIG-DCEP / TIG-DCEN
Diameters	.023”, .030”, .035”, .045”, 1/16”, 3/32”, 1/8”
Standard TIG straight lengths are available	36” (914 mm) or 39” (1000 mm) lengths. Other lengths available upon request.
AWS ER312 MIG & TIG Filler Metal Application & uses	Hardware tools Metallurgy Machinery Construction Shipbuilding Petroleum Chemical plant Power sector Gas Industry

AWS Class ER312 MIG and TIG Filler Welding Wire and Rod Chemical Composition

C	Cr	Ni	Mo	Mn	Si	P	S	Cu
0.15	28.0-30.0	20.0-22.0	0.75	1.0-2.5	0.30-0.65	0.03	0.03	0.75

AWS Class ER312 MIG and TIG Filler Welding Wire and Rod Mechanical Properties

Yield, kpsi:	78
Tensile Strength, kpsi:	109
Elongation%, min:	45

We offer These Products as per DIN, ISO, JIS or ANSI Standard.

Why Choose AWS Class ER312 MIG and TIG Filler Welding Wire and Rod from Weston Stainless?

Largest Inventory

Customer Support

On Time Deliveries

ISO Certified

Types of AWS Class ER312 MIG and TIG Filler Welding Wire and Rod

Stainless Steel ER312 MIG Filler Wire

High-strength steels, offering robust strength and corrosion resistance, ideal for heavy machinery, construction, and shipbuilding applications.

Stainless Steel ER312 TIG Filler Wire

High strength and wear resistance for welding dissimilar metals. It ensures strong, durable welds with excellent corrosion resistance, suitable for aerospace and industrial repairs.

Stainless Steel ER312 TIG Filler Rod

Designed for high-strength welds on dissimilar metals, offering superior durability and corrosion resistance. Ideal for demanding applications in heavy machinery and construction.

AWS Class ER312 MIG and TIG filler wire and rod find extensive applications in heavy machinery, construction, automotive, and power generation industries. They are suited for welding tool steels, cast steels, and joining similar metals like carbon and stainless steels. The fillers are also applied for overlay welding, restoration of worn parts, and the fabrication of high-strength structures needing excellent toughness. Their superior crack resistance and mechanical properties make them a requirement for high–stress and dynamic load applications, providing solid and durable welds.

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AWS Class ER312 MIG and TIG Filler Welding Wires and Rods Uses

AWS Class ER312 MIG and TIG filler wire and rod are shipped with test certificates indicating conformity to AWS A5.9 and ISO 14343 standards, assuring precise chemical composition and mechanical properties. Packaged in spools for use in MIG welding and cut-length rods for use in TIG welding, they are preserved in moisture-resistant packaging to retain quality. The delivery can be in bulk shipment or in tailored packaging, with assurance of secure transportation and on-time supply for industrial welding jobs.