Welding Wire ER70S-G, ER50-G
welding wire ER50-G

 


ER70S-G is copper coated gas shielding wire for low alloy steel (X65, 16Mn, 18Nb). Shielding gas could be CO2 or argon-rich mixture. Due to titanium element is added into wires, grain fines of weld metal is smaller. So it still has excellent mechanical properties under high energy input. Titanium element keeps burning arc stable and reduce spatter.


Application:


Welding wire ER70S-G (ER50-G) is widely used for pressure vessel, boiler, construction machinery, bridge building, shipbuilding, pipeline, containers, etc.


Chemical Composition: (%)

 

Standard  

C

Mn

Si

P

S

Ti

Cu

GB AWS

Sample Value

0.09

1.59

0.82

0.015

0.012

0.16

0.17

ER50-G ER70S-G

Range

0.15

1.40~1.80

0.65~1.15

0.025

0.025

0.10

0.50


Mechanical Properties:

 

  Tensile Strength
Rm (σb) MPa
Yielding Strength
ReH (δs) MPa
Elongation
A (δ5) %
Charpy V Impact Test
-30℃ AKV(J)
Shielding Gas
Sample Value 587 432 29 62 CO2 (Purity≥99.5%)
613 502 28 72 Argon-rich mixture
Range ≥580 ≥420 ≥22 ≥27  

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