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AWS BVAg-31 vs. Grade 300 Maraging Steel

AWS BVAg-31 belongs to the otherwise unclassified metals classification, while grade 300 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.

For each property being compared, the top bar is AWS BVAg-31 and the bottom bar is grade 300 maraging steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 90
190
Poisson's Ratio 0.36
0.3
Shear Modulus, GPa 33
75
Tensile Strength: Ultimate (UTS), MPa 180
1030 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 150
270
Melting Completion (Liquidus), °C 850
1480
Melting Onset (Solidus), °C 820
1430
Specific Heat Capacity, J/kg-K 280
450
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Density, g/cm3 10
8.2

Common Calculations

Stiffness to Weight: Axial, points 4.9
13
Stiffness to Weight: Bending, points 15
23
Strength to Weight: Axial, points 4.9
35 to 68
Strength to Weight: Bending, points 7.0
28 to 43
Thermal Shock Resistance, points 7.8
31 to 62

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
8.5 to 9.5
Copper (Cu), % 31 to 33
0
Iron (Fe), % 0
65 to 68.4
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
18 to 19
Palladium (Pd), % 8.0 to 12
0
Phosphorus (P), % 0 to 0.0020
0 to 0.010
Silicon (Si), % 0
0 to 0.1
Silver (Ag), % 57 to 59
0
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
0.5 to 0.8
Zinc (Zn), % 0 to 0.0010
0
Zirconium (Zr), % 0
0 to 0.020