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S31655 Stainless Steel vs. AWS E3155

Both S31655 stainless steel and AWS E3155 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 S31655 stainless steel and the bottom bar is AWS E3155.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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