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S31266 Stainless Steel vs. AWS E312

Both S31266 stainless steel and AWS E312 are iron alloys. They have 76% 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 S31266 stainless steel and the bottom bar is AWS E312.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
25
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
80
Tensile Strength: Ultimate (UTS), MPa 860
740

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Melting Completion (Liquidus), °C 1470
1410
Melting Onset (Solidus), °C 1420
1360
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 37
20
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.5
3.6
Embodied Energy, MJ/kg 89
52
Embodied Water, L/kg 220
200

Common Calculations

PREN (Pitting Resistance) 54
31
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
27
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 18
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.15
Chromium (Cr), % 23 to 25
28 to 32
Copper (Cu), % 1.0 to 2.5
0 to 0.75
Iron (Fe), % 34.1 to 46
52.3 to 63.5
Manganese (Mn), % 2.0 to 4.0
0.5 to 2.5
Molybdenum (Mo), % 5.2 to 6.2
0 to 0.75
Nickel (Ni), % 21 to 24
8.0 to 10.5
Nitrogen (N), % 0.35 to 0.6
0
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.5 to 2.5
0