ASME SFA 5.18
MIL 70S-4, MIL-E-23765/1
WT 70S-4 has a greater weld strength and good quality weld deposits in semi-killed and rimmed steels due to its higher content of silicon and manganese. It supports short-circuiting, globular, pulsed and axial spray transfer. WT 70S-4 has good fluidity and wettability and is typically used in applications of piping, bridges, pressure vessels, machinery fabrication.
Tensile Strength: 80, 500 psi
Yield Strength: 66,000 psi
Available in multiple sizes and diameters.
Chemical Composition (Wt%) Typical:
Si Mn Cu S P C
0.82 1.48 0.16 0.019 0.01 0.083