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AWS E209 vs. S82121 Stainless Steel

Both AWS E209 and S82121 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 (13, in this case) are not shown.

For each property being compared, the top bar is AWS E209 and the bottom bar is S82121 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17
28
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 79
78
Tensile Strength: Ultimate (UTS), MPa 770
730

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Expansion, µm/m-K 14
13

Otherwise Unclassified Properties

Base Metal Price, % relative 21
14
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 4.4
2.8
Embodied Energy, MJ/kg 63
40
Embodied Water, L/kg 180
150

Common Calculations

PREN (Pitting Resistance) 33
28
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 28
26
Strength to Weight: Bending, points 24
23
Thermal Shock Resistance, points 19
20

Alloy Composition

Carbon (C), % 0 to 0.060
0 to 0.035
Chromium (Cr), % 20.5 to 24
21 to 23
Copper (Cu), % 0 to 0.75
0.2 to 1.2
Iron (Fe), % 51.5 to 64.3
66.7 to 75.4
Manganese (Mn), % 4.0 to 7.0
1.0 to 2.5
Molybdenum (Mo), % 1.5 to 3.0
0.3 to 1.3
Nickel (Ni), % 9.5 to 12
2.0 to 4.0
Nitrogen (N), % 0.1 to 0.3
0.15 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.010
Vanadium (V), % 0.1 to 0.3
0