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SAE-AISI 4150 Steel vs. EN 1.7357 Steel

Both SAE-AISI 4150 steel and EN 1.7357 steel are iron alloys. Their average alloy composition is basically identical. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4150 steel and the bottom bar is EN 1.7357 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 380
180
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 20
23
Fatigue Strength, MPa 260 to 780
260
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 660 to 1310
590
Tensile Strength: Yield (Proof), MPa 380 to 1220
360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
430
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
41
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.9
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.6
Embodied Energy, MJ/kg 20
21
Embodied Water, L/kg 51
53

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 82 to 180
120
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 3930
340
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 47
21
Strength to Weight: Bending, points 22 to 34
20
Thermal Diffusivity, mm2/s 11
11
Thermal Shock Resistance, points 19 to 39
17

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.15 to 0.2
Chromium (Cr), % 0.8 to 1.1
1.0 to 1.5
Iron (Fe), % 96.7 to 97.7
96 to 97.9
Manganese (Mn), % 0.75 to 1.0
0.5 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0.45 to 0.65
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.6
Sulfur (S), % 0 to 0.040
0 to 0.030