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AISI W5 Steel vs. EN 1.4951 Stainless Steel

Both AISI W5 steel and EN 1.4951 stainless steel are iron alloys. They have 54% of their average alloy composition in common. There are 23 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AISI W5 steel and the bottom bar is EN 1.4951 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
79
Tensile Strength: Ultimate (UTS), MPa 600 to 2360
630

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
480
Thermal Conductivity, W/m-K 45
15
Thermal Expansion, µm/m-K 12
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3
25
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.6
4.3
Embodied Energy, MJ/kg 21
61
Embodied Water, L/kg 48
190

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21 to 84
22
Strength to Weight: Bending, points 20 to 50
21
Thermal Diffusivity, mm2/s 12
3.9
Thermal Shock Resistance, points 20 to 78
14

Alloy Composition

Carbon (C), % 1.1 to 1.2
0.040 to 0.080
Chromium (Cr), % 0.4 to 0.6
24 to 26
Copper (Cu), % 0 to 0.2
0
Iron (Fe), % 96.6 to 98.4
49.1 to 57
Manganese (Mn), % 0.1 to 0.4
0 to 2.0
Molybdenum (Mo), % 0 to 0.1
0
Nickel (Ni), % 0 to 0.2
19 to 22
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0.1 to 0.4
0 to 0.7
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0 to 0.15
0
Vanadium (V), % 0 to 0.1
0