ASTM A36 steel is the most commonly used mild steel that exhibits good strength coupled with formability. The strength, formability, and excellent welding properties of ASTM A36 steel make it suitable for a large variety of applications, including welding, fabricating, and bending. ASTM A36 steel can also be galvanized to provide increased corrosion resistance.
ASTM A36 steel Chemical Composition:| Element | Content |
| Carbon, C | 0.25 - 0.290 % |
| Copper, Cu | 0.20 % |
| Iron, Fe | 98.0 % |
| Manganese, Mn | 1.03 % |
| Phosphorous, P | 0.040 % |
| Silicon, Si | 0.280 % |
| Sulfur, S | 0.050 % |
ASTM A36 steel Mechanical Properties:
| Mechanical Properties | Metric | Imperial |
| Tensile Strength, Ultimate | 400 - 550 MPa | 58000 - 79800 psi |
| Tensile Strength, Yield | 250 MPa | 36300 psi |
| Elongation at Break (in 200 mm) | 20.0 % | 20.0 % |
| Elongation at Break (in 50 mm) | 23.0 % | 23.0 % |
| Modulus of Elasticity | 200 GPa | 29000 ksi |
| Bulk Modulus (typical for steel) | 140 GPa | 20300 ksi |
| Poissons Ratio | 0.260 | 0.260 |
| Shear Modulus | 79.3 GPa | 11500 ksi |
ASTM A36 steel Physical Properties:
| Physical Properties | Metric | Imperial |
| ASTM A36 steel Density | 7.85 g/cm3 | 0.284 lb/in3 |
ASTM A36 steel equivalent grades are:
British equivalent -- BS 4360 : 43
China equivalent -- GB700：Q235B
EU equivalent -- EN 10025 : S235J2
France equivalent -- NFA 35-501 : E24-2
German equivalent -- DIN 17100 : ST37-2
Italy equivalent -- UNI 7070 : Fe 360 B
Japan equivalent -- JIS G3101：Ss400
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