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AISI W5 Steel vs. N08020 Stainless Steel

Both AISI W5 steel and N08020 stainless steel are iron alloys. They have a modest 38% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is AISI W5 steel and the bottom bar is N08020 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
77
Tensile Strength: Ultimate (UTS), MPa 600 to 2360
610 to 620

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Melting Completion (Liquidus), °C 1450
1410
Melting Onset (Solidus), °C 1410
1360
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 45
12
Thermal Expansion, µm/m-K 12
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
1.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
38
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 1.6
6.6
Embodied Energy, MJ/kg 21
92
Embodied Water, L/kg 48
220

Common Calculations

Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 84
21
Strength to Weight: Bending, points 20 to 50
20
Thermal Diffusivity, mm2/s 12
3.2
Thermal Shock Resistance, points 20 to 78
15

Alloy Composition

Carbon (C), % 1.1 to 1.2
0 to 0.070
Chromium (Cr), % 0.4 to 0.6
19 to 21
Copper (Cu), % 0 to 0.2
3.0 to 4.0
Iron (Fe), % 96.6 to 98.4
29.9 to 44
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
2.0 to 3.0
Nickel (Ni), % 0 to 0.2
32 to 38
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0.1 to 0.4
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.035
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 0 to 0.1
0

Comparable Variants