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SAE-AISI M2 Steel vs. ACI-ASTM CE30 Steel

Both SAE-AISI M2 steel and ACI-ASTM CE30 steel are iron alloys. They have 66% 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 M2 steel and the bottom bar is ACI-ASTM CE30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 760 to 2150
630

Thermal Properties

Latent Heat of Fusion, J/g 260
310
Melting Completion (Liquidus), °C 1610
1410
Melting Onset (Solidus), °C 1570
1360
Specific Heat Capacity, J/kg-K 440
490
Thermal Conductivity, W/m-K 22
14
Thermal Expansion, µm/m-K 10
17

Otherwise Unclassified Properties

Base Metal Price, % relative 24
19
Density, g/cm3 8.4
7.7
Embodied Carbon, kg CO2/kg material 8.8
3.4
Embodied Energy, MJ/kg 130
49
Embodied Water, L/kg 98
180

Common Calculations

PREN (Pitting Resistance) 31
28
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 23
25
Strength to Weight: Axial, points 25 to 71
23
Strength to Weight: Bending, points 22 to 44
21
Thermal Diffusivity, mm2/s 5.9
3.6
Thermal Shock Resistance, points 27 to 76
13

Alloy Composition

Carbon (C), % 0.78 to 1.1
0 to 0.3
Chromium (Cr), % 3.8 to 4.5
26 to 30
Copper (Cu), % 0 to 0.25
0
Iron (Fe), % 78.5 to 83.4
55.1 to 66
Manganese (Mn), % 0.15 to 0.4
0 to 1.5
Molybdenum (Mo), % 4.5 to 5.5
0
Nickel (Ni), % 0 to 0.3
8.0 to 11
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0.2 to 0.45
0 to 2.0
Sulfur (S), % 0 to 0.030
0 to 0.040
Tungsten (W), % 5.5 to 6.8
0
Vanadium (V), % 1.8 to 2.2
0