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ALTIG SG1

TIG rods range for C-Mn steels

ALTIG SG1 is a copper coated W2Si/ER70S-3 type solid TIG welding rod, suitable for use mainly with Ar shielding gas.

Product Advantages

✔ Excellent mechanical properties for low temperature applications (down to -40°C)
✔ Excellent toughness properties for low temperature applications (down to -40°C)

ALTIG SG1 is suitable for welding mild and C-Mn steels, generally used for the root pass and to support welding when no back pass is possible.
ALTIG SG1 TIG rod are used for welding mild and carbon steels in metal structures, for first passes and bottom chamfer as support passes or in cases where it is impossible to weld on the back.

It meets the classifications:

  • EN ISO 636-A: W 42 4 W2Si
  • AWS A5.18: ER 70S-3

ALTIG SG1 – Chemical Analysis

  C Mn  Si P
All weld metal 0.07  1  0.65 ≤ 0.025  ≤ 0.025

ALTIG SG1 – Mechanical Properties

Heat Treatment Yield Strength
(N/mm²)
Tensile Strength
(N/mm²)
 Elongation A5 (%) Impact Energy ISO - V (J) 
        20°C (-40°C)
As Welded ≥ 420  500-640  ≥ 20 ≥ 90 ≥ 47