ER308L Stainless Steel TIG Welding Filler Rod
ER308L 36 inch TIG Welding Filler Rod

ER308L x 36" Stainless Steel TIG Welding Filler Rod

$16.26 Sale

ER308L Stainless Steel TIG Welding Filler Rod is a premium low-carbon austenitic stainless steel filler rod for clean, corrosion-resistant TIG (GTAW) welds. Supplied as straightened 36" (914 mm) cut lengths in 0.045", 1/16", 3/32", and 1/8" diameters and 1, 2, 5, and 10 lb packs, it is the standard choice for joining 304 and 304L stainless and matching grades. Select your diameter and pack size above.

Key Features

  • › Low-carbon (≤0.03% C) chemistry resists carbide precipitation and intergranular corrosion
  • › Designed to match 304 and 304L stainless base metals
  • › Excellent corrosion resistance, ductility, and toughness
  • › Smooth, stable arc with a bright, clean weld deposit
  • › Straightened 36" cut lengths for consistent, easy handling

Ideal Applications

  • › Welding 304, 304L, 308, 321, and 347 stainless steels
  • › Food, dairy, and beverage processing equipment
  • › Chemical and pharmaceutical process piping
  • › Architectural and ornamental stainless fabrication
  • › General stainless steel fabrication and repair

Technical Specifications

AWS Classification AWS A5.9 / A5.9M ER308L
Tensile Strength 75,000 psi (520 MPa) minimum
Rod Type Solid austenitic stainless steel (19.5% Cr / 10% Ni, ≤0.03% C)
Cut Length 36" (914 mm)
Process TIG (GTAW)
Polarity DCEN (straight polarity)
Shielding Gas 100% Argon
Available Packs 1 lb & 2 lb tubes; 5 lb & 10 lb boxes

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) 19.5 – 22.0 (typ. 20.5)
Nickel (Ni) 9.0 – 11.0 (typ. 10.0)
Manganese (Mn) 1.0 – 2.5 (typ. 1.8)
Silicon (Si) 0.30 – 0.65 (typ. 0.45)
Molybdenum (Mo) 0.75 max
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. 85,000 psi (585 MPa)
Yield Strength (0.2% offset) typ. 56,000 psi (385 MPa)
Elongation (2 in / 50 mm) typ. 40%
Ferrite Number (FN) 4 – 10 typical

Available Sizes & Recommended Amperage

Diameter Recommended Amperage
0.045" (1.2 mm) × 36" 40 – 90 A
1/16" (1.6 mm) × 36" 70 – 110 A
3/32" (2.4 mm) × 36" 100 – 160 A
1/8" (3.2 mm) × 36" 120 – 210 A

Recommended amperage ranges are general guidelines; optimal settings vary with base-metal thickness, joint design, tungsten selection, and welding position. Store filler rod in a dry location to prevent oxidation and ensure clean welds.

⚠ 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.
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