ASTM A36 Carbon Steel: Properties, Equivalents & Applications vs Q235B Carbon Structural Steel (GB/T 700): Chinese Standard
Side-by-side engineering comparison of ASTM A36 Carbon Steel: Properties, Equivalents & Applications (ASTM A36/A36M) and Q235B Carbon Structural Steel (GB/T 700): Chinese Standard (GB/T 700-2006). Compare mechanical properties, chemical composition, density, yield strength, international equivalents, and typical applications to select the right material for your project.
Quick Comparison
| Property | ASTM A36 Carbon Steel: Pr | Q235B Carbon Structural S |
|---|---|---|
| Standard | ASTM A36/A36M | GB/T 700-2006 |
| Category | Carbon Steel | Carbon Steel |
| Density | 7.85 g/cm³ | 7.85 g/cm³ |
| Yield Strength | 250 MPa (36 ksi) | 235 MPa (34 ksi) |
| Tensile Strength | 400-550 MPa (58-80 ksi) | 370-500 MPa (54-73 ksi) |
| Key Applications | ASTM A36 is the most widely used hot-rolled structural carbon steel in North America, containing 0.25-0.29% carbon with ... | <a href="https://ykwiki.com/materials/q235b/">Q235B</a> is China's fundamental carbon structural steel under GB/T 700-20... |
International Equivalents
| ASTM A36 Carbon Stee Equivalents | Q235B Carbon Structu Equivalents |
|---|---|
| Q235 | ASTM A36 |
| S275JR | S235JR |
| SS400 | SS400 |
| E250 | E250 |
| St37-2 | St37-2 |
How to Choose
| Choose ASTM A36 Carbon Steel: Pr when... | ASTM A36 is the default structural steel in North America; Q235B is the default in China. |
| Choose Q235B Carbon Structural S when... | For US/Canada projects requiring ASTM-certified materials, A36 is mandatory. |
Frequently Compared Questions
What is the main difference between ASTM A36 Carbon Steel: Propert and Q235B Carbon Structural Steel ?
ASTM A36 Carbon Steel: Properties, Equivalents & Applications (ASTM A36/A36M) provides 250 MPa (36 ksi) yield strength at 7.85 g/cm³ density, while Q235B Carbon Structural Steel (GB/T 700): Chinese Standard (GB/T 700-2006) delivers 235 MPa (34 ksi) at 7.85 g/cm³. The choice depends on whether your application prioritizes cost and availability or certified ASTM compliance.
Can ASTM A36 Carbon Steel: Propert be substituted for Q235B Carbon Structural Steel ?
In many applications, these materials can be cross-referenced, but direct substitution should always be verified against specific project specifications, especially for cost and availability, certified ASTM compliance, and operating environment. Consult your engineer of record.