Structural, Carbon &
HSLA Steel Plate
CSA G40.21 50A / 350A

An atmospheric corrosion-resistant weldable notch-tough steel plate grade specified within G40.21 of the Canadian Standards Association (CSA). This plate is utilized primarily in structural applications such as bridges and buildings. When properly exposed to the atmosphere, this steel plate can be utilized in its bare condition (unpainted). It is also referred to as 350A, which is its metric designation. This material is also available as Charpy tested when referenced with a "T", such as 50AT / 350AT. When Charpy tests are required, the category will be indicated. The values of these categories are outlined below in mechanical properties.


Mechanical Properties 50A/350A:

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 50A

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

STOCK SIZES 350A

Grade Gauge (Inches) Width (Inches) Length (Inches)
350A 0.1875 96 240/480
350A 0.2500 96 240/480
350A 0.3125 96 240/480
350A 0.3750 96 240/480
350A 0.5000 96 240/480
350A 0.6250 96 240/480
350A 0.7500 96 240/480
350A 0.8750 96 240/480
350A 1.0000 96 240/480
350A 1.1250 96 240/480
350A 1.2500 96 240/480
350A 1.5000 96 240/480
350A 1.7500 96 240/480
350A 2.0000 96 240/480
350A 2.2500 96 240/480
350A 2.5000 96 240/480
350A 2.7500 96 240/480
350A 3.0000 96 240/480
350A 3.2500 96 240
350A 3.5000 96 240
350A 3.7500 96 240
350A 4.0000 96 240
350A 5.0000 96 240
350A 6.0000 96 240