Alloy steels are designated by AISI four-digit numbers. They comprise different kinds of steels having compositions exceeding the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va set for carbon steels. AISI 4150 alloy steel is a higher carbon variation of chromium, manganese, molybdenum 4100 low alloy steel.
| Element | Content(%) |
|---|---|
| Iron, Fe | 96.745 - 97.67 |
| Chromium, Cr | 0.800 - 1.10 |
| Manganese, Mn | 0.750 - 1.00 |
| Carbon, C | 0.480 - 0.530 |
| Silicon, Si | 0.150 - 0.300 |
| Molybdenum, Mo | 0.150 - 0.250 |
| Sulfur, S | 0.0400 |
| Phosphorous, P | 0.0350 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 731 MPa | 106000 psi |
| Yield strength | 380 MPa | 55100 psi |
| Izod Impact | 24 J | 17.7 ft-lb |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80 GPa | 11600 ksi |
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (In 50 mm) | 20.20% | 20.20% |
| Reduction of area | 40% | 40% |
| Hardness, Brinell | 197 | 197 |
| Hardness, Knoop (converted from Brinell hardness) | 219 | 219 |
| Hardness, Rockwell B (converted from Brinell hardness) | 92 | 92 |
| Hardness, Rockwell C (converted from Brinell hardness. Value below normal HRC range, for comparison purposes only) | 13 | 13 |
| Hardness, Vickers (converted from Brinell hardness) | 207 | 207 |
| Machinability (annealed and cold drawn; based on AISI 1212 as 100 machinability) | 55 | 55 |
| Production Route | Hot Rolled, Cold Rolled |
|---|---|
| Material Standard | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry |
| Size | Width from 100mm to 3000mm ; Length from 500mm to 12000mm |
| Thickness | 0.1mm to 400mm |
| Delivery Condition | As Rolled, Annealed, Quenched and Tempered, Normalized |
| Surface Finish | Plain, Brushed, Cladded |
ASTM A29 (4150)
ASTM A322 (4150)
ASTM A331 (4150)
ASTM A519 (4150)
ASTM A711
ASTM A752 (4150)
MIL S-11595 (ORD4150)
SAE J1397 (4150)
SAE J404 (4150)
SAE J412 (4150)
1) Structures in Buildings, bridges, railway stations.
2) Fabrication of pipeline components & Industrial equipment.
3) Construction of automotive bodies, warehouses, shipping containers.
4) Commercial appliances, etc.