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ACI-ASTM CA6NM Steel vs. SAE-AISI M1 Steel

Both ACI-ASTM CA6NM steel and SAE-AISI M1 steel are iron alloys. They have 87% of their average alloy composition in common. There are 22 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 ACI-ASTM CA6NM steel and the bottom bar is SAE-AISI M1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
77
Tensile Strength: Ultimate (UTS), MPa 850
730 to 2140

Thermal Properties

Latent Heat of Fusion, J/g 280
270
Melting Completion (Liquidus), °C 1450
1560
Melting Onset (Solidus), °C 1400
1510
Specific Heat Capacity, J/kg-K 480
450
Thermal Conductivity, W/m-K 25
29
Thermal Expansion, µm/m-K 10
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
18
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.5
7.0
Embodied Energy, MJ/kg 34
99
Embodied Water, L/kg 110
98

Common Calculations

PREN (Pitting Resistance) 15
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
25 to 73
Strength to Weight: Bending, points 26
22 to 45
Thermal Diffusivity, mm2/s 6.7
8.0
Thermal Shock Resistance, points 31
23 to 66

Alloy Composition

Carbon (C), % 0 to 0.060
0.78 to 0.88
Chromium (Cr), % 11.5 to 14
3.5 to 4.0
Copper (Cu), % 0
0 to 0.25
Iron (Fe), % 78.4 to 84.6
81 to 84.8
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0.4 to 1.0
8.2 to 9.2
Nickel (Ni), % 3.5 to 4.5
0 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0.2 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.0 to 1.4