Structural and pressure-vessel plate steel grades
Structural steels such as IS 2062 and ASTM A36 are carbon–manganese steels for beams, columns, plates and fabricated structures, specified mainly by yield strength and weldability (carbon equivalent).
What structural & plate steel is
Pressure-vessel plates such as ASTM A516 Grade 60 and 70 are fine-grain carbon steels with controlled toughness for boilers, tanks and pressure vessels, usually supplied normalised for thicker plates. Teshi Group supplies these plates and sections as a stockist and supplier.
- Carbon 0.20–0.31 % depending on grade and thickness
- Manganese 0.60–1.60 %
- Carbon equivalent limits for weldability (IS 2062)
- Normalised or as-rolled, with optional impact testing
Key properties
| IS 2062 E250 yield, min | 250 MPa |
|---|---|
| IS 2062 E350 yield, min | 350 MPa |
| A516 Gr 70 yield, min | 260 MPa |
| A36 yield, min | 250 MPa |
Structural & plate steel grades compared
Chemistry and minimum room-temperature properties from the governing ASTM / ASME / API specifications. Open any grade for its full data sheet and PDF.
| Grade | Form | UNS | Cr% | Ni% | Mo% | C% | YieldMPa min | TensileMPa min |
|---|---|---|---|---|---|---|---|---|
| ASTM A36 | Structural plate, bars & shapes | K02600 | — | — | — | 0.25 max (plate ≤20 mm) to 0.29 max (>100 mm) | 250 | 400 |
| ASTM A516 Gr.70 | Pressure-vessel plate | K02700 | — | — | — | 0.27 max (≤12.5 mm) to 0.31 max (>100 mm) | 260 | 485 |
| IS 2062 E250 BR | Structural plate, sections & bars | — | — | — | — | 0.22 max | 250 | 410 |
| IS 2062 E350 BR | Structural plate, sections & bars | — | — | — | — | 0.20 max | 350 | 490 |
| ASTM A516 Grade 60 | Pressure-vessel plate | K02100 | — | — | — | 0.21 max (≤12.5 mm) to 0.27 max (>200 mm) | 220 | 415 |
Reference information compiled from the published standard for convenience. It does not replace the current edition of the governing standard, which takes precedence. Verify critical dimensions and properties before design, purchase or fabrication. Teshi Engineers & Sales Promoters (P) Ltd accepts no liability for errors or omissions.
Specifications by product form
| Product form | Grades |
|---|---|
| Structural plate, bars & shapes | ASTM A36 |
| Pressure-vessel plate | ASTM A516 Gr.70, ASTM A516 Grade 60 |
| Structural plate, sections & bars | IS 2062 E250 BR, IS 2062 E350 BR |
Where structural & plate steel is used
- Steel structures, pipe racks and platforms
- Pressure vessels, boilers and storage tanks
- Skids, frames and fabricated assemblies
- Plant buildings and equipment supports
Welding and fabrication
Check carbon equivalent and plate thickness when choosing preheat. For pressure vessels, order A516 normalised (A20 supplementary requirements) with impact testing at the design metal temperature.
FAQ
Structural & plate steel: common questions
What is the difference between A516 Grade 60 and Grade 70?
Grade 70 is stronger (yield 260 MPa, tensile 485–620 MPa) than Grade 60 (yield 220 MPa, tensile 415–550 MPa). Grade 60 has slightly better toughness and formability.
Is IS 2062 E250 equivalent to ASTM A36?
They are broadly comparable structural steels with 250 MPa minimum yield, but chemistry, testing and toughness requirements differ, so they are not directly interchangeable without review.
Structural & plate products from Teshi Group
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