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SAE-AISI 5140 Steel vs. AWS E90C-D2

Both SAE-AISI 5140 steel and AWS E90C-D2 are iron alloys. They have a very high 98% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 5140 steel and the bottom bar is AWS E90C-D2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 29
19
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 560 to 970
690
Tensile Strength: Yield (Proof), MPa 290 to 840
620

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.5
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 49
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
130
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
1010
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 34
25
Strength to Weight: Bending, points 19 to 28
22
Thermal Diffusivity, mm2/s 12
13
Thermal Shock Resistance, points 16 to 29
20

Alloy Composition

Carbon (C), % 0.38 to 0.43
0 to 0.12
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0
0 to 0.35
Iron (Fe), % 97.3 to 98.1
95.5 to 98.6
Manganese (Mn), % 0.7 to 0.9
1.0 to 1.9
Molybdenum (Mo), % 0
0.4 to 0.6
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.9
Sulfur (S), % 0 to 0.040
0 to 0.030
Vanadium (V), % 0
0 to 0.030
Residuals, % 0
0 to 0.5