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AWS E320LR vs. S31266 Stainless Steel

Both AWS E320LR and S31266 stainless steel are iron alloys. They have 87% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is AWS E320LR and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 34
40
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Tensile Strength: Ultimate (UTS), MPa 580
860

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1360
1420
Specific Heat Capacity, J/kg-K 460
460
Thermal Expansion, µm/m-K 14
16

Otherwise Unclassified Properties

Base Metal Price, % relative 36
37
Density, g/cm3 8.2
8.2
Embodied Carbon, kg CO2/kg material 6.2
6.5
Embodied Energy, MJ/kg 87
89
Embodied Water, L/kg 220
220

Common Calculations

PREN (Pitting Resistance) 28
54
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
29
Strength to Weight: Bending, points 19
24
Thermal Shock Resistance, points 15
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 19 to 21
23 to 25
Copper (Cu), % 3.0 to 4.0
1.0 to 2.5
Iron (Fe), % 32.7 to 42.5
34.1 to 46
Manganese (Mn), % 1.5 to 2.5
2.0 to 4.0
Molybdenum (Mo), % 2.0 to 3.0
5.2 to 6.2
Nickel (Ni), % 32 to 36
21 to 24
Niobium (Nb), % 0 to 0.4
0
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.020
0 to 0.035
Silicon (Si), % 0 to 0.3
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5