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AWS E385 vs. S31254 Stainless Steel

Both AWS E385 and S31254 stainless steel are iron alloys. They have a moderately high 90% 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 E385 and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
40
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
80
Tensile Strength: Ultimate (UTS), MPa 580
720

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Melting Completion (Liquidus), °C 1440
1460
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 460
460
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 14
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 31
28
Density, g/cm3 8.1
8.0
Embodied Carbon, kg CO2/kg material 5.8
5.5
Embodied Energy, MJ/kg 79
74
Embodied Water, L/kg 200
190

Common Calculations

PREN (Pitting Resistance) 36
44
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
25
Strength to Weight: Bending, points 19
22
Thermal Diffusivity, mm2/s 3.6
3.8
Thermal Shock Resistance, points 15
15

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 19.5 to 21.5
19.5 to 20.5
Copper (Cu), % 1.2 to 2.0
0.5 to 1.0
Iron (Fe), % 41.8 to 50.1
51.4 to 56.3
Manganese (Mn), % 1.0 to 2.5
0 to 1.0
Molybdenum (Mo), % 4.2 to 5.2
6.0 to 6.5
Nickel (Ni), % 24 to 26
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 0 to 0.030
0 to 0.030
Silicon (Si), % 0 to 0.9
0 to 0.8
Sulfur (S), % 0 to 0.020
0 to 0.010