1. Description
ER316 is a 19% Cr / 12% Ni / 2.5% Mo austenitic stainless steel welding wire designed for GMAW (MIG) and GTAW (TIG) processes. The addition of molybdenum improves resistance to pitting and crevice corrosion in chloride environments, as well as resistance to phosphoric and sulfurous acids.
2. Applications
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Welding matching 316 and 316L base metals, as well as 300-series stainless steels.
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Fabrication of chemical processing equipment, marine hardware, textile machinery, paper industry equipment, and pharmaceutical vessels.
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High-temperature and corrosive environment structural components.
3. Chemical Composition of Solid Wire (Wt %)
| Element | C | Si | Mn | P | S | Cr | Ni | Mo | Cu |
| Min. (%) | — | 0.30 | 1.00 | — | — | 18.0 | 11.0 | 2.00 | — |
| Max. (%) | 0.08 | 0.65 | 2.50 | 0.030 | 0.030 | 20.0 | 14.0 | 3.00 | 0.75 |
4.Typical Mechanical Properties of All-Weld Metal
| Property | Value (Typical) | AWS A5.9 Spec Min |
| Tensile Strength (Rm) | ≥580 MPa(84,000 psi) | 550 MPa (80,000 psi) |
| Yield Strength (Rp0.2) | ≥400 MPa(58,000 psi) | — |
| Elongation (A5) | ≥35% | 30% |
| Impact Energy (Charpy-V @ +20°C) | ≥80 J | — |
| Impact Energy (Charpy-V @ -110°C) | ≥50 J | — |
