Structural fabrication
A-36 and A-572 Gr 50 / Gr 65 are structural steel standards: columns, base plates, gussets, frames.
Plate · Carbon and high-strength
Steel Plate
Carbon and high-strength steel plate from 5/16" to 4" thick, in 6, 8 and 10 ft widths and 20 or 40 ft lengths. Specifications listed: A-36, A-283 Gr C, A-285 Gr C, A-516 Gr 70, A-572 Gr 50 and Gr 65, A-709 Gr 50, SA 516 and CSA G40.21 350W.
- 5/16"–4" thick
- 6, 8 & 10 ft wide
- 20 & 40 ft long
- 9 specifications
- CSA 350W
Overview
At a glance
- Specifications
- A-36 · A-283 Gr C · A-285 Gr C · A-516 Gr 70 · A-572 Gr 50 · A-572 Gr 65 · A-709 Gr 50 · SA 516 · CSA G40.21 350W
- Thickness
- 5/16" (7.938 mm) to 4" (101.6 mm)
- Formats
- 6' × 20', 6' × 40', 8' × 20', 8' × 40', 10' × 20', 10' × 40' (not every format in every thickness)
- Other sizes
- Other sizes and grades on request
Choosing a grade
Tell us the specification on your drawings. If you’re not sure, describe the application (structural, pressure vessel, bridge, general fabrication) and we’ll help match it to a listed specification. Final grade selection is the responsibility of your engineer.
What to include in your request
Specification, thickness, width × length (or cut sizes), quantity in pieces or weight, destination, required-by date, and any cutting or testing requirements.
Carbon and high-strength plate
Plate for structural, pressure-vessel and bridge work
5/16" to 4" thick, in 6, 8 and 10 ft widths and 20 or 40 ft lengths, across nine listed specifications.
Plate being cut on a CNC plasma table · Photo: Loffredo · CC BY-SA 4.0
Technical data
Specifications
Listed specifications, standard formats and theoretical weight per plate for every published thickness.
| Specification | General scope of the standard |
|---|---|
| A-36 | Carbon structural steel |
| A-283 Gr C | Low and intermediate tensile strength carbon steel plate |
| A-285 Gr C | Pressure vessel plate, carbon steel, low and intermediate tensile strength |
| A-516 Gr 70 | Pressure vessel plate, carbon steel, for moderate- and lower-temperature service |
| A-572 Gr 50 / Gr 65 | High-strength low-alloy columbium-vanadium structural steel |
| A-709 Gr 50 | Structural steel for bridges |
| SA 516 | ASME Boiler and Pressure Vessel Code designation of A-516 |
| CSA G40.21 350W | Canadian standard for structural quality steel, 350 MPa minimum yield strength, weldable |
The scope column is the general title of each ASTM/ASME standard, for orientation only; it is not a product claim. Your engineer selects the grade.
| Format (ft) | Width × length (in) | Width × length (mm) |
|---|---|---|
| 6' × 20' | 72" × 240" | 1828.8 × 6096 mm |
| 6' × 40' | 72" × 480" | 1828.8 × 12192 mm |
| 8' × 20' | 96" × 240" | 2438.4 × 6096 mm |
| 8' × 40' | 96" × 480" | 2438.4 × 12192 mm |
| 10' × 20' | 120" × 240" | 3048 × 6096 mm |
| 10' × 40' | 120" × 480" | 3048 × 12192 mm |
| Thickness (in) | Decimal (in) | Thickness (mm) | 6' × 20' | 6' × 40' | 8' × 20' | 8' × 40' | 10' × 20' | 10' × 40' |
|---|---|---|---|---|---|---|---|---|
| 5/16 | 0.313 | 7.938 | 696 | 1,392 | 928 | 1,855 | 1,160 | 2,319 |
| 3/8 | 0.375 | 9.525 | 834 | 1,667 | 1,111 | 2,223 | 1,389 | 2,779 |
| 7/16 | 0.437 | 11.1 | 971 | 1,943 | 1,295 | 2,590 | 1,619 | 3,238 |
| 1/2 | 0.500 | 12.7 | 1,111 | 2,223 | 1,482 | 2,964 | 1,852 | 3,705 |
| 9/16 | 0.562 | 14.275 | 1,249 | 2,499 | 1,666 | 3,331 | 2,082 | 4,164 |
| 5/8 | 0.625 | 15.875 | 1,389 | 2,779 | 1,852 | 3,705 | 2,315 | 4,631 |
| 3/4 | 0.750 | 19.05 | 1,667 | 3,334 | 2,223 | 4,446 | 2,779 | 5,557 |
| 7/8 | 0.875 | 22.225 | 1,945 | 3,890 | 2,593 | 5,187 | 3,242 | 6,483 |
| 1 | 1.000 | 25.4 | 2,223 | 4,446 | 2,964 | 5,928 | 3,705 | 7,410 |
| 1 1/8 | 1.125 | 28.575 | 2,501 | 5,001 | 3,334 | 6,669 | 4,168 | 8,336 |
| 1 1/4 | 1.250 | 31.75 | 2,779 | 5,557 | 3,705 | 7,410 | 4,631 | 9,262 |
| 1 3/8 | 1.375 | 34.925 | 3,056 | 6,113 | 4,075 | 8,151 | 5,094 | 10,188 |
| 1 1/2 | 1.500 | 38.1 | 3,334 | 6,669 | 4,446 | 8,891 | 5,557 | 11,114 |
| 1 5/8 | 1.625 | 41.275 | 3,612 | 7,224 | 4,816 | 9,632 | 6,020 | 12,041 |
| 1 3/4 | 1.750 | 44.45 | 3,890 | 7,780 | 5,187 | 10,373 | 6,483 | 12,967 |
| 2 | 2.000 | 50.8 | 4,446 | 8,891 | 5,928 | 11,855 | 7,410 | 14,819 |
| 2 1/4 | 2.250 | 57.15 | 5,001 | 10,003 | 6,669 | 13,337 | 8,336 | — |
| 2 1/2 | 2.500 | 63.5 | 5,557 | 11,114 | 7,410 | — | 9,262 | — |
| 2 3/4 | 2.750 | 69.85 | 6,113 | 12,226 | 8,151 | — | 10,188 | — |
| 3 | 3.000 | 76.2 | 6,669 | — | 8,891 | — | 11,114 | — |
| 3 1/2 | 3.500 | 88.9 | 7,780 | — | 10,373 | — | 12,967 | — |
| 3 3/4 | 3.750 | 95.25 | 8,336 | — | 11,114 | — | — | — |
| 4 | 4.000 | 101.6 | 8,891 | — | 11,855 | — | — | — |
Theoretical weights as published, for reference only. “—” means that format is not listed for that thickness. Other sizes and grades on request.
Specifications as published by the mill we represent (accessed October 2026). The mill’s current data and your written quote prevail. Final selection is the responsibility of your engineer or specifier.
Applications
Typical uses by specification
-
Plate fabricationPlate being cut on a CNC plasma table · Photo: Loffredo · CC BY-SA 4.0 -
Structural fabricationStructural steel columns and beams · Photo: Chris Spielmann (NIH) · Public domain -
Columns, frames and base platesSteel frame under construction · Photo: Svetlov Artem · CC BY 3.0
Pressure vessels and tanks
A-285 Gr C, A-516 Gr 70 and SA 516 are pressure vessel plate standards.
Bridges
A-709 Gr 50 is the structural steel standard for bridges.
General fabrication
A-283 Gr C covers low and intermediate tensile strength carbon plate.
Based on the general scope of each standard. Your engineer confirms the right specification for the application.
Application photos are illustrative and don’t show Tas & Zaz projects or customers.
Gallery
Steel Plate in pictures
-
Heavy plate stack -
Plate handling -
Stacked plate -
Plate being cut on a CNC plasma tablePhoto: Loffredo · CC BY-SA 4.0
Photos show the product category and are representative; they are not photos of a Tas & Zaz facility.
Mill representatives
Quoted by the mill, handled locally
Your request goes to the Mexican mill we represent. Its written quote comes to you through Tas & Zaz, your local contact in Canada and the USA.
Hot bar on a rolling mill · Photo: Adrian Tync · CC BY-SA 4.0
Downloads
Technical documents
Steel Plate technical data sheet
PDF · compiled by Tas & Zaz from the represented mill’s published data
The mill’s current documentation
Need the mill’s own published data sheet for this product? Ask us with your quote request.
Request a Steel plate quote
Tell us the specification, thickness, format or cut sizes, quantity, destination and required-by date.
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ERW Pipe
Straight-seam ERW pipe, NPS 4" to 20", for conveyance and structural use.
Photo credits
- Hot rolling in a steel mill: photo by Adrian Tync, Wikimedia Commons, CC BY-SA 4.0. Resized/cropped.
- Plate being cut on a CNC plasma table: photo by Loffredo, Wikimedia Commons, CC BY-SA 4.0. Resized/cropped.
- Structural steel columns and beams: photo by Chris Spielmann (NIH), Wikimedia Commons, Public domain. Resized/cropped.
- Steel frame under construction: photo by Svetlov Artem, Wikimedia Commons, CC BY 3.0. Resized/cropped.
- Hot bar on a rolling mill: photo by Adrian Tync, Wikimedia Commons, CC BY-SA 4.0. Resized/cropped.
- Rectangular steel tubing: photo by Shixart1985, Wikimedia Commons, CC BY 2.0. Resized/cropped.
- Wide-flange beams: photo by W.carter, Wikimedia Commons, CC0. Resized/cropped.
- Steel pipe: photo by Chris Heaton, Wikimedia Commons, CC BY-SA 2.0. Resized/cropped.
Other product photos: images published by the mills and manufacturers we represent, or from the current Tas & Zaz website. All photos are illustrative and do not show Tas & Zaz facilities, projects or customers.