ASTM A36 — Chemical Composition & Mechanical Properties
ASTM A36 is a structural & plate steel grade for structural plate, bars & shapes (UNS K02600, EN / W.Nr ≈ S235JR / S275JR). This sheet summarises its chemical composition limits, minimum mechanical properties, heat treatment and typical service. Teshi Group supplies this grade as a stockist and supplier.
ASTM A36 at a glance
| Specification | ASTM A36 |
|---|---|
| Material family | Structural & plate steel |
| Product form | Structural plate, bars & shapes |
| UNS number | K02600 |
| EN / W.Nr equivalent | ≈ S235JR / S275JR |
| Also known as | A36 |
| Document | TG-MG-043 · Rev. 1 · October 2026 |
Typical service
Structural supports, base plates, non-pressure parts
Heat treatment
As-rolled
Chemical composition of ASTM A36 (weight %)
Single values are maximums unless shown as a range or “min”.
Mechanical properties
| Tensile strength, min | 400 MPa |
|---|---|
| Yield strength, min | 250 MPa |
| Elongation, min | 23 % |
| Hardness | Not specified |
About structural & plate steel
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).
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.
International equivalents of ASTM A36
All equivalents| Standard system | Nearest equivalent grade |
|---|---|
| USA — ASTM / ASME | ASTM A36 · ASME SA-36 |
| USA — UNS | K02600 |
| Europe — EN designation | S235JR / S275JR (EN 10025-2) |
| Europe — W.Nr | 1.0038 / 1.0044 |
| Japan — JIS | SS400 (JIS G3101) |
| China — GB / NB | Q235B (GB/T 700) |
| China — old GB designation | A3 |
| India — IS | IS 2062 E250 |
| UK — BS (withdrawn) | BS 4360 43A |
Equivalents are the nearest commonly cited grades. Chemistry, mechanical properties and testing differ between standards — compare them before substituting one for another.
Other structural & plate steel grades
Structural & plate steel overviewStandards for ASTM A36
All material standardsFAQ
ASTM A36: common questions
What is the minimum yield strength of ASTM A36?
250 MPa, with a minimum tensile strength of 400 MPa.
What is the carbon content of ASTM A36?
0.25 max (plate ≤20 mm) to 0.29 max (>100 mm) %.
What is the UNS number and EN equivalent of ASTM A36?
UNS K02600; the nearest European designation is W.Nr ≈ S235JR / S275JR. Equivalents are close but not identical — check the specification if substituting.
How is ASTM A36 heat treated?
As-rolled.
What is the Chinese (GB) equivalent of ASTM A36?
The nearest Chinese equivalent is Q235B (GB/T 700), formerly A3. Equivalents are close but not identical — compare chemistry and properties before substituting.
What is the JIS equivalent of ASTM A36?
The nearest Japanese (JIS) equivalent is SS400 (JIS G3101).
Does Teshi Group supply ASTM A36?
Teshi Group supplies this grade as a stockist and supplier. Send your size, rating and quantity to info@teshigroup.com for a quotation with EN 10204 3.1 certificates.
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