 | ER316LSi Stainless Steel MIG Wire |
AWS: AWS A5.9 – ER316LSi
A low-carbon austenitic stainless steel solid welding wire designed for stable arc performance, smooth wire feeding and clean weld appearance. Its molybdenum content provides excellent corrosion resistance, making it suitable for all-position welding of 316L and other Mo-bearing stainless steels.
Applications
Chemical & Petrochemical Equipment
Fertilizer & Urea Equipment
Storage Tanks & Process Vessels
Stainless Steel Fabrication
Welding of 316L / Mo-Bearing Stainless Steel
Features
Excellent 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 | 18.0-20.0 | 11.0-14.0 | 2.0-3.0 | ≤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 |
565 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.
