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SAE-AISI 4150 (1.7228, 50CrMo4, G41500) Cr-Mo Steel
Material Properties
Base Metal Price: 3.6 % rel
Density: 7.8 g/cm3 (490 lb/ft3)
Elastic (Young's, Tensile) Modulus: 210 GPa (30 x 106 psi)
Elongation at Break: 12 to 20 %
Specific Heat Capacity: 450 J/kg-K
Strength to Weight Ratio: 94 to 168 kN-m/kg
Tensile Strength: Ultimate (UTS): 730 to 1310 MPa (110 to 190 x 103 psi)
Tensile Strength: Yield (Proof): 380 to 1215 MPa (55 to 176 x 103 psi)
Thermal Conductivity: 42 W/m-K
Thermal Diffusivity: 12
Thermal Expansion: 11.9 µm/m-K
Alloy Composition
Iron (Fe): 96.7 to 97.7 %
Chromium (Cr): 0.8 to 1.1 %
Manganese (Mn): 0.75 to 1.00 %
Carbon (C): 0.48 to 0.53 %
Silicon (Si): 0.15 to 0.35 %
Molybdenum (Mo): 0.15 to 0.25 %
Sulfur (S): 0 to 0.04 %
Phosphorus (P): 0 to 0.035 %
See Also
ASTM A 29: Standard Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
ASTM A 322: Standard Specification for Steel Bars, Alloy, Standard Grades
Ferrous Materials: Steel and Cast Iron, Hans Berns and Werner Theisen, 2008
Manufacture and Uses of Alloy Steels, Henry D. Hibbard, 2005
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