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EN 1.0070 Steel vs. SAE-AISI M7 Steel

Both EN 1.0070 steel and SAE-AISI M7 steel are iron alloys. They have 82% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is EN 1.0070 steel and the bottom bar is SAE-AISI M7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 740
760 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1470
1560
Melting Onset (Solidus), °C 1430
1510
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 53
28
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 1.7
18
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 1.4
8.9
Embodied Energy, MJ/kg 18
130
Embodied Water, L/kg 45
100

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
26 to 76
Strength to Weight: Bending, points 23
23 to 47
Thermal Diffusivity, mm2/s 14
7.8
Thermal Shock Resistance, points 23
24 to 69

Alloy Composition

Carbon (C), % 0
1.0 to 1.1
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 99.876 to 100
79.8 to 83.8
Manganese (Mn), % 0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.014
0
Phosphorus (P), % 0 to 0.055
0 to 0.030
Silicon (Si), % 0
0.2 to 0.55
Sulfur (S), % 0 to 0.055
0 to 0.030
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.8 to 2.3