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S21904 Stainless Steel vs. AWS E219

Both S21904 stainless steel and AWS E219 are iron alloys. Their average alloy composition is basically identical. There are 23 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is AWS E219.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 17 to 51
17
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
78
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
690

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Melting Completion (Liquidus), °C 1400
1400
Melting Onset (Solidus), °C 1350
1360
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 14
14
Thermal Expansion, µm/m-K 17
15

Otherwise Unclassified Properties

Base Metal Price, % relative 15
15
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.0
3.1
Embodied Energy, MJ/kg 43
44
Embodied Water, L/kg 160
160

Common Calculations

PREN (Pitting Resistance) 25
25
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 25 to 36
25
Strength to Weight: Bending, points 23 to 29
23
Thermal Diffusivity, mm2/s 3.8
3.8
Thermal Shock Resistance, points 15 to 21
17

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.060
Chromium (Cr), % 19 to 21.5
19 to 21.5
Copper (Cu), % 0
0 to 0.75
Iron (Fe), % 59.5 to 67.4
58.6 to 67.4
Manganese (Mn), % 8.0 to 10
8.0 to 10
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 5.5 to 7.5
5.5 to 7.0
Nitrogen (N), % 0.15 to 0.4
0.1 to 0.3
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030