AS 1167.2: R4.

AWS/ASME-SFA A5.18: ER70S-4...


 Applications & Features:

BW70S-4 is a GTAW wire.

BW70S-4 is a copper coated, double de-oxidised low carbon steel filler rod suitable for

the oxy-acetylene (fusion) welding and Gas Tungsten Arc (TIG) welding of a wide range of mild and medium strength steels.

BW70S-4 is recommended for the TIG welding of steel pipes, plates and castings with a

tensile strength in the 500 MPa class. It is tolerant to surface rust and mill scale and is ideal for root pass welding applications where tough and ductile welds are produced.


Shielding gas:

Argon 100%



Diameters Available:

1.6, 2.4 & 3.2mm

Pack Sizes:

5kg Tube – 1000mm long

No Price Available

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