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AWS E2595 vs. SAE-AISI 4140 Steel

Both AWS E2595 and SAE-AISI 4140 steel are iron alloys. They have 60% of their average alloy composition in common. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E2595 and the bottom bar is SAE-AISI 4140 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 17
11 to 26
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 80
73
Tensile Strength: Ultimate (UTS), MPa 850
690 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
43
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 23
2.4
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 4.4
1.5
Embodied Energy, MJ/kg 61
20
Embodied Water, L/kg 190
51

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
25 to 38
Strength to Weight: Bending, points 25
22 to 30
Thermal Diffusivity, mm2/s 4.2
12
Thermal Shock Resistance, points 21
20 to 32

Alloy Composition

Carbon (C), % 0 to 0.040
0.38 to 0.43
Chromium (Cr), % 24 to 27
0.8 to 1.1
Copper (Cu), % 0.4 to 1.5
0
Iron (Fe), % 51.4 to 64.5
96.8 to 97.8
Manganese (Mn), % 0 to 2.5
0.75 to 1.0
Molybdenum (Mo), % 2.5 to 4.5
0.15 to 0.25
Nickel (Ni), % 8.0 to 10.5
0
Nitrogen (N), % 0.2 to 0.3
0
Phosphorus (P), % 0 to 0.030
0 to 0.035
Silicon (Si), % 0 to 1.2
0.15 to 0.35
Sulfur (S), % 0 to 0.025
0 to 0.040
Tungsten (W), % 0.4 to 1.0
0