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SAE-AISI 4150 Steel vs. EN 1.7176 Steel

Both SAE-AISI 4150 steel and EN 1.7176 steel are iron alloys. Their average alloy composition is basically identical. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 1.7176 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 200 to 380
200 to 470
Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 660 to 1310
670 to 2010

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
420
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 42
48
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
2.1
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.5
1.4
Embodied Energy, MJ/kg 20
19
Embodied Water, L/kg 51
50

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 24 to 47
24 to 71
Strength to Weight: Bending, points 22 to 34
22 to 45
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 19 to 39
20 to 59

Alloy Composition

Carbon (C), % 0.48 to 0.53
0.52 to 0.59
Chromium (Cr), % 0.8 to 1.1
0.7 to 1.0
Iron (Fe), % 96.7 to 97.7
97 to 98.1
Manganese (Mn), % 0.75 to 1.0
0.7 to 1.0
Molybdenum (Mo), % 0.15 to 0.25
0
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.025

Comparable Variants