Canada · CSA Group · SteelCurrent

CSA G40.21

Structural quality steel

Grades 260W–700Q; W = weldable, WT = weldable notch-tough, A = atmospheric corrosion resistant.

Grades on Matipedia

CSA G40.21

350W

Canada's standard weldable structural grade: 350 MPa (50 ksi) yield, 450–650 MPa tensile.

ReH

≥ 350 MPa

Rm

450–655 MPa

Corroborated

2

Single source

7

Disagreements explained

1

CSA G40.21

300W

Canada's most common merchant structural grade: 300 MPa (44 ksi) yield, 65–90 ksi tensile.

ReH

≥ 300 MPa

Rm

450–620 MPa

Single source

9