Home > Electrodes > AWS Class ER420 Mig & Tig Filler Welding Wire & Rod
Andre Stainless, located in Pulau Ujong, Singapore, is a leading supplier and manufacturer of stainless steel welding materials, including AWS Class ER420 MIG and TIG filler wire and rod. This martensitic stainless alloy is designed for applications that need high hardness and moderate corrosion resistance. Known for its consistent quality and excellent weldability, Andre Stainless’s ER420 is favored in industries that require strong, wear-resistant welds. With reliable local distribution and technical support, they serve Singapore’s tool manufacturing, automotive, and oil and gas industries with products that meet strict performance standards.
ER420 is mainly made of high Carbon (0.15%) and Chromium (12-14%), making it a hardenable stainless steel. With proper heat treatment, it provides hardness above 50 HRC. Mechanical properties include tensile strength up to 100,000 psi (690 MPa) and yield strength of 80,000 psi (550 MPa). Elongation typically sits around 20%. The alloy’s strong wear resistance, hardness, and good corrosion resistance make it suitable for welding hardenable steels and components needing post-weld heat treatment for peak performance.
| 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.
ER420 filler wire is widely used to create high-hardness components like cutting tools, valve seats, pump parts, and shafts. In Pulau Ujong, it’s extensively applied in oil and gas equipment repair, mining, and tool manufacturing. This wire is great for surfacing and overlay welding where wear resistance matters most. ER420 is also used in making molds and dies where long service life under stress and abrasion is crucial. Its martensitic structure and ability to harden after welding make it a popular choice for heavy-duty and high-impact components.
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