1Kg - ER70S-6 Mild Steel 0.9mm MIG Welding Wire – High Manganese & Silicon for Clean Welds

ER70S-6 is a copper-coated mild steel MIG wire designed for the GMAW process, offering excellent arc stability, low spatter, and superior puddle control. Its elevated levels of manganese and silicon improve deoxidation, making it ideal for welding over slightly contaminated surfaces such as rust or mill scale. This 0.9mm wire on a compact 1kg spool is perfect for light fabrication, automotive repairs, and general-purpose steel welding.

Typical Chemical Composition (% by weight):

• Carbon (C): 0.06 – 0.15%
• Manganese (Mn): 1.40 – 1.85%
• Silicon (Si): 0.80 – 1.15%
• Phosphorus (P): ≤ 0.025%
• Sulfur (S): ≤ 0.035%

Mechanical Properties (Typical Weld Deposit):

• Tensile Strength: ≥ 500 MPa
• Yield Strength: ≥ 400 MPa
• Elongation: ≥ 22%
• Impact Toughness: ≥ 27J @ -30°C (depending on shielding gas and parameters)

Wire Specifications:

• AWS/ASME Classification: ER70S-6
• Diameter: 0.9mm 
• Spool Weight: 1kg
• Wire Type: Copper-coated solid wire
• Shielding Gas: CO₂ or Ar + CO₂ blends (recommended for optimal penetration and arc stability)

Applications:

• Mild steel fabrication
• Automotive bodywork and repairs
• Structural steel welding
• Pipe welding and light manufacturing
• DIY and general-purpose workshop use

Compliance & Standards:

• Conforms to AWS A5.18 / ASME SFA-5.18
• RoHS compliant
• Suitable for ISO 9001-certified production environments