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AWS BVAg-18 vs. ASTM A387 Grade 9 Steel

AWS BVAg-18 belongs to the otherwise unclassified metals classification, while ASTM A387 grade 9 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-18 and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 82
190
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 30
75
Tensile Strength: Ultimate (UTS), MPa 180
500 to 600

Thermal Properties

Latent Heat of Fusion, J/g 140
270
Melting Completion (Liquidus), °C 720
1460
Melting Onset (Solidus), °C 600
1410
Specific Heat Capacity, J/kg-K 280
470
Thermal Expansion, µm/m-K 19
13

Otherwise Unclassified Properties

Density, g/cm3 9.7
7.8
Embodied Carbon, kg CO2/kg material 59
2.1
Embodied Energy, MJ/kg 930
28

Common Calculations

Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 15
25
Strength to Weight: Axial, points 5.1
18 to 21
Strength to Weight: Bending, points 7.3
18 to 20
Thermal Shock Resistance, points 8.1
14 to 17

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.15
Chromium (Cr), % 0
8.0 to 10
Copper (Cu), % 28.5 to 31.5
0
Iron (Fe), % 0
87.1 to 90.8
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.0020
0 to 0.025
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 59 to 61
0
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 9.5 to 10.5
0
Vanadium (V), % 0
0 to 0.040
Zinc (Zn), % 0 to 0.0010
0