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S21904 Stainless Steel vs. AWS BAg-20

S21904 stainless steel belongs to the iron alloys classification, while AWS BAg-20 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is S21904 stainless steel and the bottom bar is AWS BAg-20.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
93
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 78
35
Tensile Strength: Ultimate (UTS), MPa 700 to 1000
160

Thermal Properties

Latent Heat of Fusion, J/g 290
150
Melting Completion (Liquidus), °C 1400
770
Melting Onset (Solidus), °C 1350
680
Specific Heat Capacity, J/kg-K 480
340
Thermal Expansion, µm/m-K 17
21

Otherwise Unclassified Properties

Density, g/cm3 7.7
8.6
Embodied Carbon, kg CO2/kg material 3.0
30
Embodied Energy, MJ/kg 43
480

Common Calculations

Stiffness to Weight: Axial, points 14
6.0
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 25 to 36
5.1
Strength to Weight: Bending, points 23 to 29
7.6
Thermal Shock Resistance, points 15 to 21
5.9

Alloy Composition

Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 19 to 21.5
0
Copper (Cu), % 0
37 to 39
Iron (Fe), % 59.5 to 67.4
0
Manganese (Mn), % 8.0 to 10
0
Nickel (Ni), % 5.5 to 7.5
0
Nitrogen (N), % 0.15 to 0.4
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Silver (Ag), % 0
29 to 31
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
30 to 34
Residuals, % 0
0 to 0.15