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AWS BVAu-7 vs. EN 1.4971 Stainless Steel

AWS BVAu-7 belongs to the otherwise unclassified metals classification, while EN 1.4971 stainless steel belongs to the iron alloys. They have a modest 20% of their average alloy composition in common, which, by itself, doesn't mean much. 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 BVAu-7 and the bottom bar is EN 1.4971 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 130
210
Poisson's Ratio 0.38
0.29
Shear Modulus, GPa 45
81
Tensile Strength: Ultimate (UTS), MPa 200
800

Thermal Properties

Latent Heat of Fusion, J/g 140
300
Melting Completion (Liquidus), °C 1120
1460
Melting Onset (Solidus), °C 1100
1410
Specific Heat Capacity, J/kg-K 240
450
Thermal Expansion, µm/m-K 13
15

Otherwise Unclassified Properties

Density, g/cm3 15
8.4

Common Calculations

Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 11
24
Strength to Weight: Axial, points 3.7
26
Strength to Weight: Bending, points 5.1
23
Thermal Shock Resistance, points 8.9
19

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0.080 to 0.16
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0 to 0.060
18.5 to 21
Gold (Au), % 49.5 to 50.5
0
Iron (Fe), % 0
24.3 to 37.1
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 24.5 to 25.5
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
Nitrogen (N), % 0
0.1 to 0.2
Palladium (Pd), % 23.9 to 26
0
Phosphorus (P), % 0 to 0.0020
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
2.0 to 3.0
Zinc (Zn), % 0 to 0.0010
0