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AISI W2 Steel vs. ACI-ASTM CN3MN Steel

Both AISI W2 steel and ACI-ASTM CN3MN steel are iron alloys. They have 47% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI W2 steel and the bottom bar is ACI-ASTM CN3MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 580 to 2400
620

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 45
13
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
33
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 2.0
6.2
Embodied Energy, MJ/kg 29
84
Embodied Water, L/kg 48
200

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 86
21
Strength to Weight: Bending, points 20 to 51
20
Thermal Diffusivity, mm2/s 12
3.4
Thermal Shock Resistance, points 19 to 80
14

Alloy Composition

Carbon (C), % 0.85 to 1.5
0 to 0.030
Chromium (Cr), % 0 to 0.15
20 to 22
Copper (Cu), % 0 to 0.2
0 to 0.75
Iron (Fe), % 96.2 to 98.6
41.4 to 50.3
Manganese (Mn), % 0.35 to 0.74
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
6.0 to 7.0
Nickel (Ni), % 0 to 0.2
23.5 to 25.5
Nitrogen (N), % 0
0.18 to 0.26
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0.1 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.010
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 0.15 to 0.35
0