CSA G40.21 400A Steel — Specifications & Listings

CSA G40.21

High strength structural steel with 400 MPa yield strength, Class A designation indicating atmospheric corrosion resistance. Used for heavy structural fabrications and exposed applications.

Category: Mild Steel

Grade Details

Grade	CSA G40.21 400A
Standard	CSA G40.21
Description	High strength structural steel with 400 MPa yield strength, Class A designation indicating atmospheric corrosion resistance. Used for heavy structural fabrications and exposed applications.
Applications

Equivalent / Similar Grades

Grade	Standard	Region
A588 Grade B	ASTM
S355J2WP	EN 10025-5
400W	CSA G40.21

Chemical Composition (%)

C	Mn	Si	P	S	Cu
<=0.23	<=1.60	<=0.40	<=0.035	<=0.035	0.20-0.40

Mechanical Properties

tensile_strength	520-670 MPa
yield_strength	400 MPa min
elongation	17% min
impact	27J at 0°C

Active CSA G40.21 400A Listings on M-EX

No active CSA G40.21 400A listings at this time.