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AWS E3155 vs. S31266 Stainless Steel

Both AWS E3155 and S31266 stainless steel are iron alloys. They have 79% of their average alloy composition in common. There are 23 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 E3155 and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 23
40
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
81
Tensile Strength: Ultimate (UTS), MPa 770
860

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 450
460
Thermal Conductivity, W/m-K 13
12
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
37
Density, g/cm3 8.4
8.2
Embodied Carbon, kg CO2/kg material 7.7
6.5
Embodied Energy, MJ/kg 110
89
Embodied Water, L/kg 300
220

Common Calculations

PREN (Pitting Resistance) 35
54
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 26
29
Strength to Weight: Bending, points 22
24
Thermal Diffusivity, mm2/s 3.3
3.1
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 20 to 22.5
23 to 25
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
1.0 to 2.5
Iron (Fe), % 23.3 to 36.3
34.1 to 46
Manganese (Mn), % 1.0 to 2.5
2.0 to 4.0
Molybdenum (Mo), % 2.5 to 3.5
5.2 to 6.2
Nickel (Ni), % 19 to 21
21 to 24
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 2.0 to 3.0
1.5 to 2.5