HYW ER316L stainless MIG welding wire 25 lb spool
HYW ER316L stainless MIG welding wire 2 lb spool
HYW ER316LSi stainless MIG welding wire 25 lb spool imported

HYW ER316L Stainless Steel MIG Welding Wire

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HYW ER316L Stainless Steel MIG Welding Wire is a molybdenum-bearing, low-carbon (L) austenitic stainless MIG wire (18% Cr / 12% Ni / 2.5% Mo) for maximum resistance to pitting and crevice corrosion. The added molybdenum makes it the preferred filler for marine, chemical, pharmaceutical and food-grade environments, with low carbon for superior intergranular corrosion resistance.

Key Features

  • › Low-carbon (L) chemistry minimizes carbide precipitation and intergranular corrosion
  • › High-silicon formulation for smooth wetting, a stable arc and reduced spatter
  • › Molybdenum-bearing for superior pitting and crevice corrosion resistance
  • › Precision-wound layer spools for consistent, tangle-free feeding

Ideal Applications

  • › Welding 316 / 316L molybdenum stainless base metals
  • › Marine hardware, boat fittings and coastal structures
  • › Chemical, petrochemical and pharmaceutical processing equipment
  • › Food-grade tanks, piping and sanitary fabrication
  • › Applications demanding superior pitting and crevice corrosion resistance

Technical Specifications

AWS Classification AWS A5.9 / A5.9M ER316L
Tensile Strength 85,000 psi (586 MPa) typical (as-welded)
Wire Type Solid low-carbon, Mo-bearing austenitic stainless steel (18% Cr / 12% Ni / 2.5% Mo)
Process MIG / MAG (GMAW)
Polarity DC+ (DCEP / reverse polarity)
Shielding Gas 98% Ar / 2% O₂, or tri-mix (90% He / 7.5% Ar / 2.5% CO₂) for short-circuit
Packaging 2 lb & 25 lb plastic spools (single rolls and multi-roll packs)

Typical Chemical Composition

Typical filler-wire analysis (wt %). Single values are maximums; iron is the balance.

Element Typical Wire (wt %)
Carbon (C) 0.03 max
Chromium (Cr) 18.0 – 20.0 (typ. 19.0)
Nickel (Ni) 11.0 – 14.0 (typ. 12.5)
Molybdenum (Mo) 2.0 – 3.0 (typ. 2.5)
Manganese (Mn) 1.0 – 2.5 (typ. 1.8)
Silicon (Si) 0.30 – 0.65 (typ. 0.45)
Phosphorus (P) 0.03 max
Sulfur (S) 0.03 max
Copper (Cu) 0.75 max
Iron (Fe) Balance

Mechanical Properties

Typical as-welded all-weld-metal properties; values meet or exceed AWS A5.9 minimums.

Tensile Strength typ. 82,000 psi (565 MPa)
Yield Strength (0.2% offset) typ. 56,000 psi (385 MPa)
Elongation (2 in / 50 mm) typ. 38%
Ferrite Number (FN) 4 – 10 typical

Available Sizes & Recommended Amperage

Diameter Recommended Amperage
.030" (0.8 mm) 40 – 145 A
.035" (0.9 mm) 50 – 180 A
.045" (1.2 mm) 75 – 350 A

Recommended amperage ranges are general guidelines; optimal settings vary with base-metal thickness, joint design, shielding gas, and welding position. Store wire in a dry location to prevent oxidation and ensure smooth feeding.

⚠ WARNING: This product and the fumes and gases produced when welding it can expose you to chemicals including nickel and hexavalent chromium compounds, which are known to the State of California to cause cancer, and manganese, which is known to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.