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AWS BVAu-8 vs. Grade 250 Maraging Steel

AWS BVAu-8 belongs to the otherwise unclassified metals classification, while grade 250 maraging steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is AWS BVAu-8 and the bottom bar is grade 250 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Poisson's Ratio 0.42
0.3
Shear Modulus, GPa 36
75
Tensile Strength: Ultimate (UTS), MPa 140
970 to 1800

Thermal Properties

Latent Heat of Fusion, J/g 71
270
Melting Completion (Liquidus), °C 1240
1480
Melting Onset (Solidus), °C 1200
1430
Specific Heat Capacity, J/kg-K 140
450
Thermal Expansion, µm/m-K 14
12

Otherwise Unclassified Properties

Density, g/cm3 19
8.2

Common Calculations

Stiffness to Weight: Axial, points 3.0
13
Stiffness to Weight: Bending, points 8.3
23
Strength to Weight: Axial, points 2.1
33 to 61
Strength to Weight: Bending, points 3.2
26 to 40
Thermal Shock Resistance, points 7.1
29 to 54

Alloy Composition

Aluminum (Al), % 0
0.050 to 0.15
Boron (B), % 0
0 to 0.0030
Cadmium (Cd), % 0 to 0.0010
0
Calcium (Ca), % 0
0 to 0.050
Carbon (C), % 0 to 0.0050
0 to 0.030
Cobalt (Co), % 0
7.0 to 8.5
Gold (Au), % 91 to 93
0
Iron (Fe), % 0
66.3 to 71.1
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0 to 0.1
Molybdenum (Mo), % 0
4.6 to 5.2
Nickel (Ni), % 0
17 to 19
Palladium (Pd), % 7.0 to 9.0
0
Phosphorus (P), % 0 to 0.0020
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.3 to 0.5
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0 to 0.020