AWS Class ER312 MIG and TIG Filler Welding Wire and Rod

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Chanchai Stainless offers AWS Class ER312 MIG and TIG filler wires and rods, designed to join dissimilar metals and provide high-strength, crack-resistant welds. With high ferrite content and strong resistance to thermal expansion mismatch, ER312 is particularly suitable for welding tool steels, stainless to carbon steel, and other difficult-to-weld combinations. These filler metals perform well in both standard and critical welding applications.

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ER312 typically contains 28 to 32% chromium and 8 to 10% nickel, with low carbon and high ferrite levels. The deposited metal shows tensile strength of approximately 700 to 850 MPa and excellent resistance to cracking, even when joining incompatible materials. The microstructure remains stable through repeated heating and cooling cycles.

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 Chanchai 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

ER312 MIG filler wire excels in welding dissimilar metals and high-strength steels, offering robust strength and corrosion resistance, ideal for heavy machinery, construction, and shipbuilding applications.

Stainless Steel ER312 TIG Filler Wire

ER312 TIG filler wire provides 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

ER312 TIG filler rod is designed for high-strength welds on dissimilar metals, offering superior durability and corrosion resistance. Ideal for demanding applications in heavy machinery and construction.

After manufacturing, our quality control team conducts comprehensive destructive and non-destructive testing using advanced tools to ensure the reliability of AWS Class ER312 MIG and TIG Filler Welding Wire and Rod. Then securely we package the products and guarantee timely delivery to customers, providing all necessary documentation along with the shipment for a seamless experience.

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

ER312 is commonly used in maintenance and repair welding, especially for joining stainless to carbon steel or hard-to-weld tool steels. It is suitable for applications facing dynamic loading, thermal shock, and high mechanical stress, including shafts, structural joints, and equipment in mining, cement, or heavy industry sectors.