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Chemical Composition
The following table shows the chemical composition of AISI 4150 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 |
Physical Properties
The physical properties of AISI 4150 alloy steel are given in the following table.
|
Properties |
Metric |
Imperial |
|
Density |
7.85 g/cm3 |
0.284 lb/in³ |
|
Melting point |
1427°C |
2600°F |
Mechanical Properties
The following table outlines the mechanical properties of annealed AISI 4150 alloy steel.
|
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 |
