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AISI W2 Steel vs. AWS ERNiCrMo-2

AISI W2 steel belongs to the iron alloys classification, while AWS ERNiCrMo-2 belongs to the nickel alloys.

For each property being compared, the top bar is AISI W2 steel and the bottom bar is AWS ERNiCrMo-2.

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
81
Tensile Strength: Ultimate (UTS), MPa 580 to 2400
750

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 45
11
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
55
Density, g/cm3 7.8
8.4
Embodied Carbon, kg CO2/kg material 2.0
9.2
Embodied Energy, MJ/kg 29
120
Embodied Water, L/kg 48
270

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 21 to 86
25
Strength to Weight: Bending, points 20 to 51
22
Thermal Diffusivity, mm2/s 12
2.9
Thermal Shock Resistance, points 19 to 80
20

Alloy Composition

Carbon (C), % 0.85 to 1.5
0.050 to 0.15
Chromium (Cr), % 0 to 0.15
20.5 to 23
Cobalt (Co), % 0
0.5 to 2.5
Copper (Cu), % 0 to 0.2
0 to 0.5
Iron (Fe), % 96.2 to 98.6
17 to 20
Manganese (Mn), % 0.35 to 0.74
0 to 1.0
Molybdenum (Mo), % 0 to 0.1
8.0 to 10
Nickel (Ni), % 0 to 0.2
40.3 to 53.8
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 0.030
Tungsten (W), % 0 to 0.15
0.2 to 1.0
Vanadium (V), % 0.15 to 0.35
0
Residuals, % 0
0 to 0.5