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AISI W2 Steel vs. S64512 Stainless Steel

Both AISI W2 steel and S64512 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AISI W2 steel and the bottom bar is S64512 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
76
Tensile Strength: Ultimate (UTS), MPa 580 to 2400
1140

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
28
Thermal Expansion, µm/m-K 12
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
4.1

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
10
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 2.0
3.3
Embodied Energy, MJ/kg 29
47
Embodied Water, L/kg 48
110

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 86
40
Strength to Weight: Bending, points 20 to 51
31
Thermal Diffusivity, mm2/s 12
7.5
Thermal Shock Resistance, points 19 to 80
42

Alloy Composition

Carbon (C), % 0.85 to 1.5
0.080 to 0.15
Chromium (Cr), % 0 to 0.15
11 to 12.5
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 96.2 to 98.6
80.6 to 84.7
Manganese (Mn), % 0.35 to 0.74
0.5 to 0.9
Molybdenum (Mo), % 0 to 0.1
1.5 to 2.0
Nickel (Ni), % 0 to 0.2
2.0 to 3.0
Nitrogen (N), % 0
0.010 to 0.050
Phosphorus (P), % 0 to 0.025
0 to 0.025
Silicon (Si), % 0.1 to 0.4
0 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.025
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 0.15 to 0.35
0.25 to 0.4