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AWS BAg-21 vs. AWS ER90S-B9

AWS BAg-21 belongs to the otherwise unclassified metals classification, while AWS ER90S-B9 belongs to the iron alloys. There are 16 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 BAg-21 and the bottom bar is AWS ER90S-B9.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 85
190
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 31
75
Tensile Strength: Ultimate (UTS), MPa 150
690

Thermal Properties

Latent Heat of Fusion, J/g 140
270
Melting Completion (Liquidus), °C 800
1450
Melting Onset (Solidus), °C 690
1410
Specific Heat Capacity, J/kg-K 280
470
Thermal Expansion, µm/m-K 19
13

Otherwise Unclassified Properties

Density, g/cm3 9.8
7.8
Embodied Energy, MJ/kg 970
37

Common Calculations

Stiffness to Weight: Axial, points 4.8
14
Stiffness to Weight: Bending, points 15
25
Strength to Weight: Axial, points 4.2
25
Strength to Weight: Bending, points 6.4
22
Thermal Shock Resistance, points 6.6
19

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0
0.070 to 0.13
Chromium (Cr), % 0
8.0 to 10.5
Copper (Cu), % 27.5 to 29.5
0 to 0.2
Iron (Fe), % 0
84.4 to 90.7
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
0.85 to 1.2
Nickel (Ni), % 2.0 to 3.0
0 to 0.8
Niobium (Nb), % 0
0.020 to 0.1
Nitrogen (N), % 0
0.030 to 0.070
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0.15 to 0.5
Silver (Ag), % 62 to 64
0
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 5.0 to 7.0
0
Vanadium (V), % 0
0.15 to 0.3
Residuals, % 0 to 0.15
0 to 0.5