CSA 70A

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General Product Description

The Canadian Standards Association (CSA) specification G40.20/G40.21 covers structural quality steel of a number of different product forms. SSAB produces structural quality plates and sheet in accordance with CSA G40.20/G40.21 with specified minimum yield strengths of 38 ksi to 70 ksi. CSA 70A is an atmospheric corrosion-resistant weldable steel with a specified minimum yield strength of 70 ksi for thicknesses up to 2.5 in.

Dimension Range

Grade
Grade
70A
Thickness
(inmm)
0.750 - 1.24919.0 - 31.72
Width
(inmm)
72 - 1201800 - 3050
Length
(inmm)
240 - 11766100 - 29870
Grade
Grade
70A
Thickness
(inmm)
1.250 - 2.0031.75 - 50.8
Width
(inmm)
72 - 1201800 - 3050
Length
(inmm)
240 - 11046100 - 28040

Width: Please inquire for plate widths less than 72 in. and over 120 in.

Length: Please inquire for plate lengths greater than the listed maxima. Plate length may be limited by maximum individual plate weight of 66,000 lbs.

Mechanical Properties

Tensile testing is performed in the tranverse direction. The required tensile properties are tabulated below:

Grade
Grade
70A
Thickness
(inmm)
0.750 - 2.0019.0 - 50.8
Yield strength 1)
(min ksi)
70
Tensile strength 2)
(ksi)
85 - 115
Elongation in 2" 2)
(min %)
14
Elongation in 8"
(min %)
12

1) Yield strength measured as 0.2% offset or 0.5% extension under load.

2) See elongation requirement adjustment of CSA G40.20-13 (Latest edition).

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