Description
Compatible Base Materials
ER70S-6 is a versatile TIG filler rod designed for welding mild and low carbon steels, making it ideal for applications such as:
- Mild Steel: General structural steel, S235, S275, S355
- Low Carbon Steel: A36, St37, St44, and equivalent grades
- Automotive Fabrication: Roll cages, chassis components, and custom body panels
- Pressure Vessels: Tanks, boilers, and pressure-rated containers
- Pipe Welding: Process piping, structural tubing, and conduit systems
- Metal Artwork: Sculptures, custom furniture, and decorative metalwork
Standards & Specifications
- EN ISO 636-A: W 42 6 W3Si1
- AWS A5.18: ER70S-6
Typical Mechanical Properties
- Tensile Strength: 520-590 MPa
- Yield Strength: 420-500 MPa
- Elongation: >22%
- Impact Strength: >70 J at -30°C
Key Features & Benefits
✅ Enhanced Deoxidizing Elements: Higher silicon and manganese content for cleaner welds
✅ Superior Wetting Action: Smooth puddle flow and excellent tie-in characteristics
✅ Surface Tolerance: Performs well on materials with mill scale or light rust
✅ High Deposit Quality: Minimal porosity and inclusion content
✅ Excellent Mechanical Properties: High tensile strength with good ductility and impact resistance
Recommended Welding Parameters
- Diameter 1.6mm: 80-130A DC-
- Diameter 2.0mm: 120-160A DC-
- Diameter 2.4mm: 140-190A DC-
- Diameter 3.2mm: 180-250A DC-
- Polarity: DC- (electrode negative)
