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S31730 Stainless Steel vs. AWS E2209

Both S31730 stainless steel and AWS E2209 are iron alloys. They have 89% 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 S31730 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, % 40
23
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
79
Tensile Strength: Ultimate (UTS), MPa 540
770

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1390
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
14

Otherwise Unclassified Properties

Base Metal Price, % relative 24
20
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 4.6
4.0
Embodied Energy, MJ/kg 63
55
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 30
35
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 19
27
Strength to Weight: Bending, points 18
24
Thermal Shock Resistance, points 12
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.040
Chromium (Cr), % 17 to 19
21.5 to 23.5
Copper (Cu), % 4.0 to 5.0
0 to 0.75
Iron (Fe), % 52.4 to 61
58.4 to 66.9
Manganese (Mn), % 0 to 2.0
0.5 to 2.0
Molybdenum (Mo), % 3.0 to 4.0
2.5 to 3.5
Nickel (Ni), % 15 to 16.5
8.5 to 10.5
Nitrogen (N), % 0 to 0.045
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.030