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AISI W1 Steel vs. AISI W5 Steel

Both AISI W1 steel and AISI W5 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is AISI W1 steel and the bottom bar is AISI W5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
72
Tensile Strength: Ultimate (UTS), MPa 590 to 2320
600 to 2360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1450
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 48
45
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.6
1.6
Embodied Energy, MJ/kg 21
21
Embodied Water, L/kg 47
48

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 83
21 to 84
Strength to Weight: Bending, points 20 to 50
20 to 50
Thermal Diffusivity, mm2/s 13
12
Thermal Shock Resistance, points 22 to 85
20 to 78

Alloy Composition

Carbon (C), % 0.7 to 1.5
1.1 to 1.2
Chromium (Cr), % 0 to 0.15
0.4 to 0.6
Copper (Cu), % 0 to 0.2
0 to 0.2
Iron (Fe), % 96.4 to 98.9
96.6 to 98.4
Manganese (Mn), % 0.35 to 0.73
0.1 to 0.4
Molybdenum (Mo), % 0 to 0.1
0 to 0.1
Nickel (Ni), % 0 to 0.2
0 to 0.2
Phosphorus (P), % 0 to 0.025
0 to 0.030
Silicon (Si), % 0.1 to 0.4
0.1 to 0.4
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0 to 0.15
0 to 0.15
Vanadium (V), % 0 to 0.1
0 to 0.1

Comparable Variants