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CSA G40.21 Structural 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.
CSA G40.21 Steel Plate 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.
- Select grades are available to purchase online via Leeco Pro. Click here to log on or contact us to learn more.
Available Sizes for CSA G40.21 Steel Plate:
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 | 0.50-1.50% |
| Phosphorus | 0.04% |
| Sulfur | 0.05% |
| Silicon | 0.40% |
| Grade 50W | |
| Carbon | 0.23% |
| Manganese | 0.50-1.50% |
| 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 | 0.15-0.50% |
| Chromium | 0.70% |
| Nickel | 0.90% |
| Copper | 0.20-0.60% |
