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AWS E308 vs. S31277 Stainless Steel

Both AWS E308 and S31277 stainless steel are iron alloys. They have 73% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is AWS E308 and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 40
45
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
80
Tensile Strength: Ultimate (UTS), MPa 620
860

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Melting Completion (Liquidus), °C 1420
1460
Melting Onset (Solidus), °C 1380
1410
Specific Heat Capacity, J/kg-K 480
460
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 16
36
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 3.2
6.7
Embodied Energy, MJ/kg 46
90
Embodied Water, L/kg 150
220

Common Calculations

PREN (Pitting Resistance) 21
51
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 22
29
Strength to Weight: Bending, points 21
25
Thermal Shock Resistance, points 16
19

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.020
Chromium (Cr), % 18 to 21
20.5 to 23
Copper (Cu), % 0 to 0.75
0.5 to 1.5
Iron (Fe), % 62.9 to 72.5
35.5 to 46.2
Manganese (Mn), % 0.5 to 2.5
0 to 3.0
Molybdenum (Mo), % 0 to 0.75
6.5 to 8.0
Nickel (Ni), % 9.0 to 11
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010