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SAE-AISI M6 Steel vs. SAE-AISI 1080 Steel

Both SAE-AISI M6 steel and SAE-AISI 1080 steel are iron alloys. They have 73% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M6 steel and the bottom bar is SAE-AISI 1080 steel.

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
72
Tensile Strength: Ultimate (UTS), MPa 840 to 2210
770 to 870

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Melting Completion (Liquidus), °C 1560
1450
Melting Onset (Solidus), °C 1510
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 17
51
Thermal Expansion, µm/m-K 12
12

Otherwise Unclassified Properties

Base Metal Price, % relative 39
1.8
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 8.0
1.4
Embodied Energy, MJ/kg 120
19
Embodied Water, L/kg 160
46

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 28 to 73
27 to 31
Strength to Weight: Bending, points 24 to 45
24 to 26
Thermal Diffusivity, mm2/s 4.7
14
Thermal Shock Resistance, points 26 to 68
25 to 29

Alloy Composition

Carbon (C), % 0.75 to 0.85
0.75 to 0.88
Chromium (Cr), % 3.8 to 4.5
0
Cobalt (Co), % 11 to 13
0
Iron (Fe), % 68.8 to 74.6
98.1 to 98.7
Manganese (Mn), % 0.15 to 0.4
0.6 to 0.9
Molybdenum (Mo), % 4.5 to 5.5
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0
Sulfur (S), % 0 to 0.030
0 to 0.050
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0