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AWS BAg-3 vs. ASTM A372 Grade B Steel

AWS BAg-3 belongs to the otherwise unclassified metals classification, while ASTM A372 grade B steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is AWS BAg-3 and the bottom bar is ASTM A372 grade B steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 80
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 30
73
Tensile Strength: Ultimate (UTS), MPa 170
600

Thermal Properties

Latent Heat of Fusion, J/g 120
250
Melting Completion (Liquidus), °C 690
1460
Melting Onset (Solidus), °C 630
1420
Specific Heat Capacity, J/kg-K 290
470
Thermal Expansion, µm/m-K 22
12

Otherwise Unclassified Properties

Density, g/cm3 9.3
7.8
Embodied Carbon, kg CO2/kg material 49
1.4
Embodied Energy, MJ/kg 770
18

Common Calculations

Stiffness to Weight: Axial, points 4.8
13
Stiffness to Weight: Bending, points 15
24
Strength to Weight: Axial, points 5.1
21
Strength to Weight: Bending, points 7.3
20
Thermal Shock Resistance, points 6.9
19

Alloy Composition

Cadmium (Cd), % 15 to 17
0
Carbon (C), % 0
0 to 0.35
Copper (Cu), % 14.5 to 16.5
0
Iron (Fe), % 0
97.9 to 99.85
Manganese (Mn), % 0
0 to 1.4
Nickel (Ni), % 2.5 to 3.5
0
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0.15 to 0.35
Silver (Ag), % 49 to 51
0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 13.5 to 17.5
0
Residuals, % 0 to 0.15
0