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AWS E320 vs. S31655 Stainless Steel

Both AWS E320 and S31655 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is AWS E320 and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
39
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Tensile Strength: Ultimate (UTS), MPa 620
710

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1410
1430
Melting Onset (Solidus), °C 1360
1380
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 38
17
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.5
3.3
Embodied Energy, MJ/kg 91
46
Embodied Water, L/kg 220
160

Common Calculations

PREN (Pitting Resistance) 28
27
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
23
Thermal Shock Resistance, points 16
16

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.030
Chromium (Cr), % 19 to 21
19.5 to 21.5
Copper (Cu), % 3.0 to 4.0
0 to 1.0
Iron (Fe), % 31.8 to 43.5
63.2 to 71.9
Manganese (Mn), % 0.5 to 2.5
0 to 2.0
Molybdenum (Mo), % 2.0 to 3.0
0.5 to 1.5
Nickel (Ni), % 32 to 36
8.0 to 9.5
Niobium (Nb), % 0 to 1.0
0
Nitrogen (N), % 0
0.14 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 0.6
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015