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AWS ER90S-B9 vs. AWS BVAu-7

AWS ER90S-B9 belongs to the iron alloys classification, while AWS BVAu-7 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is AWS ER90S-B9 and the bottom bar is AWS BVAu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
130
Poisson's Ratio 0.28
0.38
Shear Modulus, GPa 75
45
Tensile Strength: Ultimate (UTS), MPa 690
200

Thermal Properties

Latent Heat of Fusion, J/g 270
140
Melting Completion (Liquidus), °C 1450
1120
Melting Onset (Solidus), °C 1410
1100
Specific Heat Capacity, J/kg-K 470
240
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Density, g/cm3 7.8
15

Common Calculations

Stiffness to Weight: Axial, points 14
4.7
Stiffness to Weight: Bending, points 25
11
Strength to Weight: Axial, points 25
3.7
Strength to Weight: Bending, points 22
5.1
Thermal Shock Resistance, points 19
8.9

Alloy Composition

Aluminum (Al), % 0 to 0.040
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0.070 to 0.13
0 to 0.0050
Chromium (Cr), % 8.0 to 10.5
0
Cobalt (Co), % 0
0 to 0.060
Copper (Cu), % 0 to 0.2
0
Gold (Au), % 0
49.5 to 50.5
Iron (Fe), % 84.4 to 90.7
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 1.2
0
Molybdenum (Mo), % 0.85 to 1.2
0
Nickel (Ni), % 0 to 0.8
24.5 to 25.5
Niobium (Nb), % 0.020 to 0.1
0
Nitrogen (N), % 0.030 to 0.070
0
Palladium (Pd), % 0
23.9 to 26
Phosphorus (P), % 0 to 0.010
0 to 0.0020
Silicon (Si), % 0.15 to 0.5
0
Sulfur (S), % 0 to 0.010
0
Vanadium (V), % 0.15 to 0.3
0
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.5
0