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Grade CSA G4021 0.5 in. x 120 in. x 480 in. steel plate front view.
Grade CSA G4021 0.5 in. x 120 in. x 480 in. steel plate right view.
Grade CSA G4021 0.5 in. x 120 in. x 480 in. steel plate top view.

CSA G40.21 38W & 44W Structural Steel Plate

CSA G40.21 38W and 44W steel plate are weldable structural steel grades that meet Canadian Standards Association requirements. Also referred to as 260W and 300W, these grades are commonly used in general construction, engineering and fabrication applications.

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Features

  • Suitable for general welded construction and structural fabrication applications.

  • Available in standard and heavy plate thicknesses.

  • May be certified to meet multiple standards on mill test reports, but guaranteed to meet CSA G40.21 requirements.

  • Select grades are available to purchase online via Leeco® Pro. Click here to log on or contact us to learn more.

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Product Details

Grade Thickness Width Length
CSA G40.21 38W 1/4" – 4" 48" – 120" Up to 480"
CSA G40.21 44W 1/4" – 4" 48" – 120" Up to 480"
Grade Yield Point (ksi) Tensile Strength (ksi) Elongation %
38W ≤2.5" thick 38 60-85 20
38W >2.5" thick 36 64-90 20
44W ≤2.5" thick 44 64-90 20
44W >2.5" thick 40 64-90 20
Carbon max 0.22%
Manganese 0.50-1.50%
Phosphorus max 0.040%
Sulfur max 0.05%
Silicon max 0.40%
Carbon max 0.20%
Manganese 0.50-1.50%
Phosphorus max 0.040%
Sulfur max 0.050%
Silicon max 0.40%

Grade Comparison

Frequently Asked Questions

Learn more about CSA G40.21 38W and 44W steel plate.
CSA G40.21 38W and 44W are weldable structural steel plate grades used for general construction, fabrication and engineering applications that require Canadian structural steel requirements. Common uses include buildings, bridges and other general structural projects where weldability is important and low-temperature notch toughness is not the primary requirement.
In CSA G40.21 steel plate, 38W and 44W are imperial grade designations, while 260W and 300W are their metric equivalents. The numbers refer to minimum yield strength levels, with 38W corresponding to 260 MPa and 44W corresponding to 300 MPa. The “W” indicates weldable steel.
CSA 38W and CSA 44W are both weldable structural steel plate grades under CSA G40.21, with “W” indicating weldable steel. The main difference is minimum yield strength: CSA 38W has a minimum yield strength of 38 ksi, while CSA 44W has a minimum yield strength of 44 ksi for applicable thickness ranges. CSA 44W, also known as 300W, is often selected when a project requires higher strength than CSA 38W, also known as 260W, while still meeting CSA G40.21 weldable structural steel requirements.
CSA G40.21 38W and 44W require chemical composition and tensile testing, but Charpy impact testing is not part of the standard test schedule for these W grades. If low-temperature notch toughness is required, a WT grade such as 38WT or 44WT may need to be specified with the required Charpy impact category.
CSA G40.21 38W and 44W steel plate may be certified to multiple standards on the mill test report (MTR) when the material satisfies each specification’s requirements. When CSA G40.21 certification is requested, the MTR should confirm the plate meets the required CSA grade, such as 38W/260W or 44W/300W.