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AWS E2595 vs. S20431 Stainless Steel

Both AWS E2595 and S20431 stainless steel are iron alloys. They have 81% of their average alloy composition in common. There are 25 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 AWS E2595 and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
46
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
76
Tensile Strength: Ultimate (UTS), MPa 850
710

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Melting Completion (Liquidus), °C 1450
1400
Melting Onset (Solidus), °C 1400
1360
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.8

Otherwise Unclassified Properties

Base Metal Price, % relative 23
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 4.4
2.5
Embodied Energy, MJ/kg 61
36
Embodied Water, L/kg 190
140

Common Calculations

PREN (Pitting Resistance) 42
20
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 30
25
Strength to Weight: Bending, points 25
23
Thermal Diffusivity, mm2/s 4.2
4.0
Thermal Shock Resistance, points 21
15

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.12
Chromium (Cr), % 24 to 27
17 to 18
Copper (Cu), % 0.4 to 1.5
1.5 to 3.5
Iron (Fe), % 51.4 to 64.5
66.1 to 74.4
Manganese (Mn), % 0 to 2.5
5.0 to 7.0
Molybdenum (Mo), % 2.5 to 4.5
0
Nickel (Ni), % 8.0 to 10.5
2.0 to 4.0
Nitrogen (N), % 0.2 to 0.3
0.1 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.045
Silicon (Si), % 0 to 1.2
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.030
Tungsten (W), % 0.4 to 1.0
0