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SAE-AISI 1141 Steel vs. AISI W5 Steel

Both SAE-AISI 1141 steel and AISI W5 steel are iron alloys. They have a very high 98% of their average alloy composition in common. 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 SAE-AISI 1141 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 740 to 810
600 to 2360

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
45
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 12
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
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 26 to 29
21 to 84
Strength to Weight: Bending, points 23 to 25
20 to 50
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 24 to 26
20 to 78

Alloy Composition

Carbon (C), % 0.37 to 0.45
1.1 to 1.2
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 0
0 to 0.2
Iron (Fe), % 97.7 to 98.2
96.6 to 98.4
Manganese (Mn), % 1.4 to 1.7
0.1 to 0.4
Molybdenum (Mo), % 0
0 to 0.1
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0.1 to 0.4
Sulfur (S), % 0.080 to 0.13
0 to 0.030
Tungsten (W), % 0
0 to 0.15
Vanadium (V), % 0
0 to 0.1