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AISI W1 Steel vs. SAE-AISI P6 Steel

Both AISI W1 steel and SAE-AISI P6 steel are iron alloys. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is AISI W1 steel and the bottom bar is SAE-AISI P6 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
73
Tensile Strength: Ultimate (UTS), MPa 590 to 2320
630 to 1930

Thermal Properties

Latent Heat of Fusion, J/g 250
250
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 48
43
Thermal Expansion, µm/m-K 10
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1
7.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.2
4.6
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
1.8
Embodied Energy, MJ/kg 21
24
Embodied Water, L/kg 47
59

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 83
22 to 68
Strength to Weight: Bending, points 20 to 50
21 to 44
Thermal Diffusivity, mm2/s 13
11
Thermal Shock Resistance, points 22 to 85
21 to 63

Alloy Composition

Carbon (C), % 0.7 to 1.5
0.050 to 0.15
Chromium (Cr), % 0 to 0.15
1.3 to 1.8
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 96.4 to 98.9
92.9 to 95
Manganese (Mn), % 0.35 to 0.73
0.35 to 0.7
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.2
3.3 to 3.8
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
Vanadium (V), % 0 to 0.1
0

Comparable Variants