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S31655 Stainless Steel vs. AWS E2209

Both S31655 stainless steel and AWS E2209 are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is S31655 stainless steel and the bottom bar is AWS E2209.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 39
23
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
79
Tensile Strength: Ultimate (UTS), MPa 710
770

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
16
Thermal Expansion, µm/m-K 16
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 17
20
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 3.3
4.0
Embodied Energy, MJ/kg 46
55
Embodied Water, L/kg 160
170

Common Calculations

PREN (Pitting Resistance) 27
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25
27
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.0
4.3
Thermal Shock Resistance, points 16
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 19.5 to 21.5
21.5 to 23.5
Copper (Cu), % 0 to 1.0
0 to 0.75
Iron (Fe), % 63.2 to 71.9
58.4 to 66.9
Manganese (Mn), % 0 to 2.0
0.5 to 2.0
Molybdenum (Mo), % 0.5 to 1.5
2.5 to 3.5
Nickel (Ni), % 8.0 to 9.5
8.5 to 10.5
Nitrogen (N), % 0.14 to 0.25
0.080 to 0.2
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