Specifications:
AWS A5.18
ASME SFA 5.18
AWS ER70S-3
UNS K11022

Description:
WT 70S-3 is a general purpose, mild steel wire used for both single and multipass applications. With the added silicon and manganese, WT 70S-3 can be welded over clean to light rust steel. It is flexible and is good for heavy-duty applications to lighter duty applications, and it has a smooth stable arc with a weld bead that ties in evenly with the sides giving a smooth appearance. It is typically used in pressure vessels, pipes, railcar construction, automotive frames, and high speed robotic and automatic welding applications.

Tensile Strength: 70, 000 psi min.
Yield Strength: 58,000 psi min.
Elongation: 22% min.

Available in multiple sizes and diameters in spool and wire and in different finishes/coatings.

                                                                                 Chemical Composition (Wt%):

SiMnCuMoSNiCrPCVFe
0.45-0.750.9-1.40.50.150.0350.150.150.0250.06-0.150.03BAL
Note: Single values are maximum unless otherwise noted.

View/Download Data Sheet

WT 70s-3 low alloy steel data sheet