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SAE-AISI M6 Steel vs. ACI-ASTM CK35MN Steel

Both SAE-AISI M6 steel and ACI-ASTM CK35MN steel are iron alloys. They have 57% 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 M6 steel and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 840 to 2210
650

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1560
1460
Melting Onset (Solidus), °C 1510
1410
Specific Heat Capacity, J/kg-K 440
470
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 12
16

Otherwise Unclassified Properties

Base Metal Price, % relative 39
31
Density, g/cm3 8.4
8.0
Embodied Carbon, kg CO2/kg material 8.0
5.9
Embodied Energy, MJ/kg 120
81
Embodied Water, L/kg 160
210

Common Calculations

PREN (Pitting Resistance) 28
48
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 28 to 73
22
Strength to Weight: Bending, points 24 to 45
21
Thermal Diffusivity, mm2/s 4.7
3.3
Thermal Shock Resistance, points 26 to 68
14

Alloy Composition

Carbon (C), % 0.75 to 0.85
0 to 0.035
Chromium (Cr), % 3.8 to 4.5
22 to 24
Cobalt (Co), % 11 to 13
0
Copper (Cu), % 0
0 to 0.4
Iron (Fe), % 68.8 to 74.6
43.4 to 51.8
Manganese (Mn), % 0.15 to 0.4
0 to 2.0
Molybdenum (Mo), % 4.5 to 5.5
6.0 to 6.8
Nickel (Ni), % 0
20 to 22
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.2 to 0.45
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 3.8 to 4.8
0
Vanadium (V), % 1.3 to 1.7
0