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AWS E2553 vs. S31266 Stainless Steel

Both AWS E2553 and S31266 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is AWS E2553 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, % 17
40
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 80
81
Tensile Strength: Ultimate (UTS), MPa 850
860

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 14
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 21
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 4.0
6.5
Embodied Energy, MJ/kg 56
89
Embodied Water, L/kg 190
220

Common Calculations

PREN (Pitting Resistance) 40
54
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 30
29
Strength to Weight: Bending, points 26
24
Thermal Diffusivity, mm2/s 4.3
3.1
Thermal Shock Resistance, points 21
18

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.030
Chromium (Cr), % 24 to 27
23 to 25
Copper (Cu), % 1.5 to 2.5
1.0 to 2.5
Iron (Fe), % 55.2 to 64.5
34.1 to 46
Manganese (Mn), % 0.5 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 2.9 to 3.9
5.2 to 6.2
Nickel (Ni), % 6.5 to 8.5
21 to 24
Nitrogen (N), % 0.1 to 0.25
0.35 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5