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AWS BVAg-30 vs. S31730 Stainless Steel

AWS BVAg-30 belongs to the otherwise unclassified metals classification, while S31730 stainless steel belongs to the iron alloys. There are 15 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-30 and the bottom bar is S31730 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 86
200
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 31
77
Tensile Strength: Ultimate (UTS), MPa 170
540

Thermal Properties

Latent Heat of Fusion, J/g 140
290
Melting Completion (Liquidus), °C 810
1430
Melting Onset (Solidus), °C 810
1390
Specific Heat Capacity, J/kg-K 280
470
Thermal Expansion, µm/m-K 19
16

Otherwise Unclassified Properties

Density, g/cm3 10
8.0

Common Calculations

Stiffness to Weight: Axial, points 4.7
14
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 4.7
19
Strength to Weight: Bending, points 6.7
18
Thermal Shock Resistance, points 7.6
12

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.030
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 25.5 to 28.5
4.0 to 5.0
Iron (Fe), % 0
52.4 to 61
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
15 to 16.5
Nitrogen (N), % 0
0 to 0.045
Palladium (Pd), % 4.5 to 5.5
0
Phosphorus (P), % 0 to 0.0020
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 67 to 69
0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.0010
0