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AWS BAg-21 vs. AWS E309Nb

AWS BAg-21 belongs to the otherwise unclassified metals classification, while AWS E309Nb belongs to the iron alloys. There are 16 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 AWS BAg-21 and the bottom bar is AWS E309Nb.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 85
200
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 31
78
Tensile Strength: Ultimate (UTS), MPa 150
620

Thermal Properties

Latent Heat of Fusion, J/g 140
300
Melting Completion (Liquidus), °C 800
1420
Melting Onset (Solidus), °C 690
1380
Specific Heat Capacity, J/kg-K 280
480
Thermal Expansion, µm/m-K 19
14

Otherwise Unclassified Properties

Density, g/cm3 9.8
7.8
Embodied Energy, MJ/kg 970
64

Common Calculations

Stiffness to Weight: Axial, points 4.8
14
Stiffness to Weight: Bending, points 15
25
Strength to Weight: Axial, points 4.2
22
Strength to Weight: Bending, points 6.4
21
Thermal Shock Resistance, points 6.6
16

Alloy Composition

Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
22 to 25
Copper (Cu), % 27.5 to 29.5
0 to 0.75
Iron (Fe), % 0
54.8 to 64.8
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 2.0 to 3.0
12 to 14
Niobium (Nb), % 0
0.7 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 62 to 64
0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 5.0 to 7.0
0
Residuals, % 0 to 0.15
0