CSA G40.21 Steel Plate

Leeco® Steel offers CSA G40.21 structural steel plate out of its Hamilton, Ontario distribution center as well as our other 10 North American locations.

Overview:

  • Popular structural steel that meets specifications outlined by the Canadian Standards Association.
  • Available in three grades: 44W (most popular), 50W and 50A.
  • May be certified to meet multiple standards on Mill Test Report, but guaranteed to be certified to meet CSA G40.21 standards.

Available Sizes

Leeco Steel stocks the following standard sizes, but other sizes may be available for special orders.

  THICKNESS WIDTH LENGTH
Grade 44W 1/4" – 4" 48" – 120" Up to 480"
Grade 50W 1/4" – 4" 48" – 120" Up to 480"
Grade 50A 1/4" – 4" 48" – 120" Up to 480"

Material Properties

The following material properties are will be confirmed on the Mill Test Report.

  Yield Point (ksi) Tensile Strength (ksi) Elongation %
44W – 2.5" thick of less 44 64-90 20
44W – Greater than 2.5" to 4" thick 40 64-90 20
50W 50 65-95 19
50A 50 70-95 19

 

Chemical Composition

The following composition properties are for the CSA G40.21 grades.

 

44W  
Carbon 0.22%
Manganese 0.5-1.5%
Phosphorus 0.04%
Sulfur 0.05%
Silicon 0.40%

 

Grade 50W
Carbon 0.23%
Manganese 0.5-1.5%
Phosphorus 0.04%
Sulfur 0.05%
Silicon 0.40%

 

Grade 50A
Carbon 0.20%
Manganese 0.75-1.35%
Phosphorus 0.03%
Sulfur 0.04%
Silicon 0.15-0.40%
Chromium 0.70%
Nickel 0.90%
Copper 0.20-0.60%