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AWS BVAg-31 vs. ASTM A356 Grade 2

AWS BVAg-31 belongs to the otherwise unclassified metals classification, while ASTM A356 grade 2 belongs to the iron alloys. There are 15 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 BVAg-31 and the bottom bar is ASTM A356 grade 2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
190
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 33
73
Tensile Strength: Ultimate (UTS), MPa 180
510

Thermal Properties

Latent Heat of Fusion, J/g 150
250
Melting Completion (Liquidus), °C 850
1470
Melting Onset (Solidus), °C 820
1430
Specific Heat Capacity, J/kg-K 280
470
Thermal Expansion, µm/m-K 18
13

Otherwise Unclassified Properties

Density, g/cm3 10
7.9

Common Calculations

Stiffness to Weight: Axial, points 4.9
13
Stiffness to Weight: Bending, points 15
24
Strength to Weight: Axial, points 4.9
18
Strength to Weight: Bending, points 7.0
18
Thermal Shock Resistance, points 7.8
15

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.25
Copper (Cu), % 31 to 33
0
Iron (Fe), % 0
97.7 to 99.55
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0 to 0.7
Molybdenum (Mo), % 0
0.45 to 0.65
Palladium (Pd), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0 to 0.035
Silicon (Si), % 0
0 to 0.6
Silver (Ag), % 57 to 59
0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.0010
0