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AWS BAg-27 vs. S21904 Stainless Steel

AWS BAg-27 belongs to the otherwise unclassified metals classification, while S21904 stainless steel belongs to the iron alloys. 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 AWS BAg-27 and the bottom bar is S21904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 88
200
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 33
78
Tensile Strength: Ultimate (UTS), MPa 160
700 to 1000

Thermal Properties

Latent Heat of Fusion, J/g 140
290
Melting Completion (Liquidus), °C 750
1400
Melting Onset (Solidus), °C 610
1350
Specific Heat Capacity, J/kg-K 330
480
Thermal Expansion, µm/m-K 22
17

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 25
3.0
Embodied Energy, MJ/kg 400
43

Common Calculations

Stiffness to Weight: Axial, points 5.7
14
Stiffness to Weight: Bending, points 17
25
Strength to Weight: Axial, points 5.1
25 to 36
Strength to Weight: Bending, points 7.6
23 to 29
Thermal Shock Resistance, points 5.9
15 to 21

Alloy Composition

Cadmium (Cd), % 12.5 to 14.5
0
Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
19 to 21.5
Copper (Cu), % 34 to 36
0
Iron (Fe), % 0
59.5 to 67.4
Manganese (Mn), % 0
8.0 to 10
Nickel (Ni), % 0
5.5 to 7.5
Nitrogen (N), % 0
0.15 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 24 to 26
0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 24.5 to 28.5
0
Residuals, % 0 to 0.15
0