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AWS E3155 vs. S31655 Stainless Steel

Both AWS E3155 and S31655 stainless steel are iron alloys. They have 62% of their average alloy composition in common. There are 23 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 E3155 and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 23
39
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 81
78
Tensile Strength: Ultimate (UTS), MPa 770
710

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Melting Completion (Liquidus), °C 1460
1430
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 450
480
Thermal Conductivity, W/m-K 13
15
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 70
17
Density, g/cm3 8.4
7.8
Embodied Carbon, kg CO2/kg material 7.7
3.3
Embodied Energy, MJ/kg 110
46
Embodied Water, L/kg 300
160

Common Calculations

PREN (Pitting Resistance) 35
27
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 26
25
Strength to Weight: Bending, points 22
23
Thermal Diffusivity, mm2/s 3.3
4.0
Thermal Shock Resistance, points 20
16

Alloy Composition

Carbon (C), % 0 to 0.1
0 to 0.030
Chromium (Cr), % 20 to 22.5
19.5 to 21.5
Cobalt (Co), % 18.5 to 21
0
Copper (Cu), % 0 to 0.75
0 to 1.0
Iron (Fe), % 23.3 to 36.3
63.2 to 71.9
Manganese (Mn), % 1.0 to 2.5
0 to 2.0
Molybdenum (Mo), % 2.5 to 3.5
0.5 to 1.5
Nickel (Ni), % 19 to 21
8.0 to 9.5
Niobium (Nb), % 0.75 to 1.3
0
Nitrogen (N), % 0
0.14 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 2.0 to 3.0
0