Description
Arcos ER309/309L stainless-steel TIG rod is used for welding similar alloys and for demanding dissimilar-metal joints. Its elevated chromium and nickel content provides good tolerance for dilution when joining stainless steel to carbon or low-alloy steel.
- AWS A5.9 / ASME SFA 5.9 classifications: ER309 and ER309L
- UNS: S30980 and S30983
- Diameter: 3/32 in
- Length: 36 in
- Process: GTAW / TIG
- GTAW shielding gas: 100% argon or argon / 25–75% helium
- Typical tensile strength: 87,000 psi
- Typical elongation: 43%
- Typical uses: joining Types 304, 347, 321, 316 and duplex stainless steels to mild or low-alloy steel
- Suitable for clad-side welding and buffer layers before corrosion-resistant surfacing
- Priced and sold by the pound
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