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AISI W5 Steel vs. SAE-AISI D7 Steel

Both AISI W5 steel and SAE-AISI D7 steel are iron alloys. They have 82% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is AISI W5 steel and the bottom bar is SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 600 to 2360
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Melting Completion (Liquidus), °C 1450
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
27
Thermal Expansion, µm/m-K 12
11

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
10
Density, g/cm3 7.8
7.6
Embodied Carbon, kg CO2/kg material 1.6
11
Embodied Energy, MJ/kg 21
180
Embodied Water, L/kg 48
130

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 84
29 to 78
Strength to Weight: Bending, points 20 to 50
25 to 48
Thermal Diffusivity, mm2/s 12
7.4
Thermal Shock Resistance, points 20 to 78
27 to 72

Alloy Composition

Carbon (C), % 1.1 to 1.2
2.2 to 2.5
Chromium (Cr), % 0.4 to 0.6
11.5 to 13.5
Copper (Cu), % 0 to 0.2
0 to 0.25
Iron (Fe), % 96.6 to 98.4
76.6 to 81.9
Manganese (Mn), % 0.1 to 0.4
0 to 0.6
Molybdenum (Mo), % 0 to 0.1
0.7 to 1.2
Nickel (Ni), % 0 to 0.2
0 to 0.3
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0.1 to 0.4
0 to 0.6
Sulfur (S), % 0 to 0.030
0 to 0.030
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 0 to 0.1
3.8 to 4.4

Comparable Variants