Description
Compatible Base Materials
ER70S-2 is a specialized 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
- Critical Applications: Aerospace structures, military equipment, and precision components
- Root Pass Welding: Pipeline roots, pressure vessel seams, and critical first passes
- Heavy Equipment: Construction machinery, material handling equipment, and agricultural implements
- High-Quality Fabrication: Performance vehicle components, precision fixtures, and premium metalwork
Standards & Specifications
- EN ISO 636-A: W 42 2 W2Ti
- AWS A5.18: ER70S-2
Typical Mechanical Properties
- Tensile Strength: 530-610 MPa
- Yield Strength: 430-510 MPa
- Elongation: >24%
- Impact Strength: >80 J at -30°C
Key Features & Benefits
✅ Premium Deoxidizers: Contains titanium and zirconium for exceptional weld cleanliness
✅ Crack Resistance: Reduced susceptibility to hot cracking and porosity formation
✅ Superior Puddle Control: Excellent fluidity with precise directional control
✅ Enhanced Mechanical Properties: Higher impact strength and toughness at low temperatures
✅ Low Hydrogen Process: Minimizes risk of hydrogen-induced cracking in sensitive applications
Recommended Welding Parameters
- Diameter 1.6mm: 80-130A DC-
- Diameter 2.0mm: 110-160A DC-
- Diameter 2.4mm: 130-180A DC-
- Diameter 3.2mm: 170-240A DC-
- Polarity: DC- (electrode negative)
