Home > Electrodes > AWS Class ER420 Mig & Tig Filler Welding Wire & Rod
Aditya Stainless, a prominent manufacturer and supplier based in Kolkata, India, specializes in high-performance AWS Class ER420 MIG and TIG Filler Welding Wire and Rod, specifically designed for welding martensitic stainless steels. The ER420 filler metal, which is high-carbon and straight chromium, is perfect for hard-facing and joining 12% Cr stainless steels, including 420-grade materials. It creates robust, wear-resistant welds that boast excellent hardness and moderate corrosion resistance. This makes it an ideal choice for applications demanding high strength and abrasion resistance, such as valve seats, shafts, cutting tools, surgical instruments, and components that face severe wear or erosion.
ER420 is composed of about 12–14% chromium and a high carbon content ranging from 0.15–0.40%, which contributes to its impressive hardness and wear resistance. The weld metal typically achieves a hardness of 50–55 HRC (as-welded). Its mechanical properties include a tensile strength of at least 95,000 psi (655 MPa) and a yield strength of at least 75,000 psi (515 MPa). To enhance toughness and minimize brittleness, post-weld heat treatment is often necessary. This filler metal is air-hardening, so it requires careful handling to avoid cracking, particularly in restrained joints or during multi-pass welds on thicker materials.
| Classification | AWS A5.9, ER420 |
| 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 ER420 MIG & TIG Filler Metal Application & uses |
|
| C | Cr | Ni | Mo | Mn | Si | P | S | Cu |
| 0.03 | 19.5-22.0 | 9.0-11.0 | 0.75 | 1.0-2.5 | 0.65-1.00 | 0.03 | 0.03 | 0.75 |
| Tensile Strength (psi) | 86,000 psi (593 MPa) |
|---|---|
| Yield Strength (psi) | 57,000 psi (393 MPa) |
| Elongation (%) | 42% |
Contact us to get a quick quote for your requirement.
ER420 MIG filler wire offers high hardness and wear resistance, ideal for welding martensitic stainless steels in applications requiring durable and abrasion-resistant joints under high stress.
ER420 TIG filler wire provides excellent hardness and wear resistance, suitable for welding martensitic stainless steels, ensuring strong, durable welds in high-stress and abrasive environments.
ER420 TIG filler rod delivers superior hardness and abrasion resistance, perfect for welding martensitic stainless steels in applications demanding high strength, durability, and performance under extreme conditions.
We guarantee the highest quality of our AWS Class ER420 MIG and TIG Filler Welding Wire and Rod through thorough in-house testing and inspection. Our team conducts rigorous evaluations to confirm the product’s performance, strength, and durability in various conditions. We are committed to on time and efficient delivery. Guaranteeing our clients receive their orders on time. This approach guarantees that every product meets the expectations of our customers without any delays.
AWS ER420 MIG and TIG Filler Wire and Rod are mainly utilized for welding martensitic stainless steels like AISI 403, 410, 414, and 420, where high hardness and wear resistance are crucial. Typical applications include hard-facing tools, turbine blades, shafts, pump parts, and valve components. It’s widely used across various industries, including aerospace, automotive, petrochemical, and power generation. Given its high carbon content and air-hardening properties, preheating and post-weld heat treatment are generally necessary to prevent cracking. ER420 delivers outstanding performance in environments that require both abrasion resistance and moderate corrosion resistance.
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