 | ER308L Stainless Steel TIG ROD |
AWS: AWS A5.9 – ER308L
A low-carbon austenitic stainless steel TIG welding rod designed for stable arc performance and precise weld control. It produces clean, smooth welds with good corrosion resistance and an attractive finish. Suitable for welding 304L and other 18Cr-8Ni austenitic stainless steels, particularly in applications requiring reliable weld quality and resistance to intergranular corrosion.
Applications
Petrochemical Equipment
Food Processing Equipment
Pressure Vessels & Storage Tanks
Stainless Steel Fabrication
Welding of 304L / 18Cr-8Ni Stainless Steel
Features
Good Corrosion Resistance
Stable Arc
Low Spatter
Clean Weld Appearance
Good Mechanical Properties
All-Position Welding
Typical Chemical Composition (%)
C | Mn | Si | Cr | Ni | Mo | P | S | Cu |
≤0.03 | 1.0-2.5 | 0.30-0.65 | 19.5-22.0 | 9.0-11.0 | ≤0.75 | ≤0.03 | ≤0.03 | ≤0.75 |
AWS standard limits; single values shown with ≤ are maximum values.
Typical Mechanical Properties
Tensile Strength | Elongation | Shielding Gas | Gas Flow | Polarity |
585 MPa | 42% | 98% Ar + 2% O₂ | 20-25 L/min | DC+ |
Recommended Welding Parameters (DC+)
Wire Size | Flat / Horizontal Current | Voltage | Vertical-Up Current | Voltage | Overhead Current | Voltage |
0.8 mm | 70-150 A | 20-25 V | 50-120 A | 19-23 V | 50-120 A | 19-23 V |
1.0 mm | 100-200 A | 22-28 V | 80-150 A | 20-25 V | 80-150 A | 20-25 V |
1.2 mm | 140-220 A | 23-33 V | 120-180 A | 24-28 V | 160-200 A | 26-30 V |
Welding Position
Flat · Horizontal · Vertical-Up · Overhead
Welding Notes
· Clean rust, moisture, oil, dust and other contaminants from the weld area before welding.
· Recommended shielding gas: 98% Ar + 2% O₂; maintain a gas flow of approximately 20-25 L/min.
· Maintain a wire stick-out of approximately 15-25 mm and use suitable welding parameters.
· For outdoor welding, provide adequate wind protection when wind speed exceeds 1.5 m/s.
· Use controlled heat input and proper welding technique to maintain corrosion resistance and weld appearance.
