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SAE-AISI 4150 Steel vs. Chromium 33

SAE-AISI 4150 steel belongs to the iron alloys classification, while chromium 33 belongs to the otherwise unclassified metals. They have a modest 34% of their average alloy composition in common, which, by itself, doesn't mean much. There are 21 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4150 steel and the bottom bar is chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 12 to 20
45
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 73
81
Tensile Strength: Ultimate (UTS), MPa 660 to 1310
850
Tensile Strength: Yield (Proof), MPa 380 to 1220
430

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 13
14

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
36
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.5
6.0
Embodied Energy, MJ/kg 20
84
Embodied Water, L/kg 51
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 180
320
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 3930
450
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 24 to 47
30
Strength to Weight: Bending, points 22 to 34
25
Thermal Shock Resistance, points 19 to 39
21

Alloy Composition

Carbon (C), % 0.48 to 0.53
0 to 0.015
Chromium (Cr), % 0.8 to 1.1
31 to 35
Copper (Cu), % 0
0.3 to 1.2
Iron (Fe), % 96.7 to 97.7
25.7 to 37.9
Manganese (Mn), % 0.75 to 1.0
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.25
0.5 to 2.0
Nickel (Ni), % 0
30 to 33
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.035
0 to 0.020
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.010