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AWS E2595 vs. S39274 Stainless Steel

Both AWS E2595 and S39274 stainless steel are iron alloys. They have a very high 95% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is AWS E2595 and the bottom bar is S39274 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17
17
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 850
900

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1450
1480
Melting Onset (Solidus), °C 1400
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 16
16
Thermal Expansion, µm/m-K 14
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 23
24
Density, g/cm3 7.9
8.0
Embodied Carbon, kg CO2/kg material 4.4
4.3
Embodied Energy, MJ/kg 61
60
Embodied Water, L/kg 190
180

Common Calculations

PREN (Pitting Resistance) 42
43
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
32
Strength to Weight: Bending, points 25
26
Thermal Diffusivity, mm2/s 4.2
4.2
Thermal Shock Resistance, points 21
25

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 24 to 27
24 to 26
Copper (Cu), % 0.4 to 1.5
0.2 to 0.8
Iron (Fe), % 51.4 to 64.5
57 to 65.6
Manganese (Mn), % 0 to 2.5
0 to 1.0
Molybdenum (Mo), % 2.5 to 4.5
2.5 to 3.5
Nickel (Ni), % 8.0 to 10.5
6.0 to 8.0
Nitrogen (N), % 0.2 to 0.3
0.24 to 0.32
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 1.2
0 to 0.8
Sulfur (S), % 0 to 0.025
0 to 0.020
Tungsten (W), % 0.4 to 1.0
1.5 to 2.5