Structural, Carbon & HSLA Steel Plate

CSA G40.21 50W / 350W

A high-strength, low-alloy steel plate grade specified within G40.21 of the Canadian Standards Association (CSA). This grade is utilized in a variety of structural applications. It is also referred to as 350W, which is its metric designation. This material is also available as Charpy tested when referenced with a “T”, such as 50WT / 350WT. When Charpy tests are required, the category will be indicated. The values of these categories are outlined below in mechanical properties.

Mechanical Properties 50W / 350W:

• Tensile: 65 to 95 ksi
• Yield: 50 ksi min
• Elongation: 19% min in 8″ 22% min in 2″

CAT 1 (32°F): 20 ft/lbs
CAT 2 (0°F): 20 ft/lbs
CAT 3 (-20°F): 20 ft/lbs
CAT 4 (-50°F): 20 ft/lbs
CAT 5: (Specified by Purchaser)

Stock Sizes 50W
Grade Thickness (Inches) Width (Inches) Length (Inches)
50W
0.1875
96
240/480
50W
0.2500
60/96/120
240/480
50W
0.3125
60/96/120
240/480
50W
0.3750
60/96/120
240/480
50W
0.5000
60/96/120
240/480
50W
0.6250
60/96/120
240/480
50W
0.7500
60/96/120
240/480
50W
0.8750
60/96/120
240/480
50W
1.0000
60/96/120
240/480
50W
1.1250
60/96/120
240/480
50W
1.2500
60/96/120
240/480
50W
1.5000
60/96/120
240/480
50W
1.7500
60/96/120
240/480
50W
2.0000
60/96/120
240/480
50W
2.2500
96
240/480
50W
2.5000
96
240/480
50W
2.7500
96
240/480
50W
3.0000
96
240/480
50W
3.2500
96
240
50W
3.5000
96
240
50W
3.7500
96
240
50W
4.0000
96
240
50W
5.0000
96
240
50W
6.0000
96
240
Stock Sizes 350W
Grade Thickness (Inches) Width (Inches) Length (Inches)
350W
0.1875
96
240/480
350W
0.2500
96
240/480
350W
0.3125
96
240/480
350W
0.3750
96
240/480
350W
0.5000
96
240/480
350W
0.6250
96
240/480
350W
0.7500
96
240/480
350W
0.8750
96
240/480
350W
1.0000
96
240/480
350W
1.1250
96
240/480
350W
1.2500
96
240/480
350W
1.5000
96
240/480
350W
1.7500
96
240/480
350W
2.0000
96
240/480
350W
2.2500
96
240/480
350W
2.5000
96
240/480
350W
2.7500
96
240/480
350W
3.0000
96
240/480
350W
3.2500
96
240
350W
3.5000
96
240
350W
3.7500
96
240
350W
4.0000
96
240
350W
5.0000
96
240
350W
6.0000
96
240

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