AISI 1030 steel structure is a high carbon steel, and has moderate strength and hardness in the as-rolled condition. It can be hardened and strengthened by cold work. It also has fair machinability, ductility and good weldability.
1030 steel structure Chemical composition：
C(％): 0.28～0.34
Mn(％): 0.60～0.90
P(％)≤: 0.040
S(％)≤: 0.050
1030 steel structure Mechanical Properties
| Properties | Metric | Imperial |
| Tensile strength, ultimate | 525 MPa | 76100 psi |
| Tensile strength, yield | 440 MPa | 63800 psi |
| Modulus of elasticity | 190-210 GPa | 29700-30458 ksi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Poissons ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 12% | 12% |
| Reduction of area | 35% | 35% |
| Hardness, Brinell | 149 | 149 |
| Hardness, Knoop (converted from Brinell hardness) | 169 | 169 |
| Hardness, Rockwell B (converted from Brinell hardness) | 80 | 80 |
| Hardness, Vickers (converted from Brinell hardness) | 155 | 155 |
| Machinability (based on AISI 1212 steel. as 100 machinability) | 70 | 70 |
1030 steel structure Welding
AISI 1030 carbon steel can be welded by all welding methods. It is advisable to pre-heat the heavy sections of this steel at 149 to 260°C (300 to 500°F) and then post-heat at 593 to 649°C (1100 to 1200°F) for welding.
1030 steel structure Heat Treatment
AISI 1030 carbon steel is heat treated at 816 to 871°C (1500 to 1600°F) and quenched in water. This process is followed by a tempering treatment.
1030 steel structure Applications
AISI 1030 carbon steel is suitable for manufacturing machinery parts.
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