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SAE-AISI M7 Steel vs. ASTM A356 Grade 10

Both SAE-AISI M7 steel and ASTM A356 grade 10 are iron alloys. They have 86% of their average alloy composition in common. There are 22 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 M7 steel and the bottom bar is ASTM A356 grade 10.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 77
74
Tensile Strength: Ultimate (UTS), MPa 760 to 2210
670

Thermal Properties

Latent Heat of Fusion, J/g 270
260
Melting Completion (Liquidus), °C 1560
1470
Melting Onset (Solidus), °C 1510
1430
Specific Heat Capacity, J/kg-K 450
470
Thermal Conductivity, W/m-K 28
39
Thermal Expansion, µm/m-K 12
13

Otherwise Unclassified Properties

Base Metal Price, % relative 18
3.9
Density, g/cm3 8.1
7.9
Embodied Carbon, kg CO2/kg material 8.9
1.8
Embodied Energy, MJ/kg 130
23
Embodied Water, L/kg 100
59

Common Calculations

PREN (Pitting Resistance) 35
5.9
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26 to 76
24
Strength to Weight: Bending, points 23 to 47
22
Thermal Diffusivity, mm2/s 7.8
11
Thermal Shock Resistance, points 24 to 69
19

Alloy Composition

Carbon (C), % 1.0 to 1.1
0 to 0.2
Chromium (Cr), % 3.5 to 4.0
2.0 to 2.8
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 79.8 to 83.8
94.4 to 96.6
Manganese (Mn), % 0.15 to 0.4
0.5 to 0.8
Molybdenum (Mo), % 8.2 to 9.2
0.9 to 1.2
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.55
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 1.4 to 2.1
0
Vanadium (V), % 1.8 to 2.3
0