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AWS BVAg-8 vs. S20431 Stainless Steel

AWS BVAg-8 belongs to the otherwise unclassified metals classification, while S20431 stainless steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (20, in this case) are not shown.

For each property being compared, the top bar is AWS BVAg-8 and the bottom bar is S20431 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 84
200
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 31
76
Tensile Strength: Ultimate (UTS), MPa 170
710

Thermal Properties

Latent Heat of Fusion, J/g 140
280
Melting Completion (Liquidus), °C 780
1400
Melting Onset (Solidus), °C 780
1360
Specific Heat Capacity, J/kg-K 280
480
Thermal Expansion, µm/m-K 19
17

Otherwise Unclassified Properties

Density, g/cm3 10
7.7

Common Calculations

Stiffness to Weight: Axial, points 4.6
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 4.7
25
Strength to Weight: Bending, points 6.8
23
Thermal Shock Resistance, points 7.6
15

Alloy Composition

Cadmium (Cd), % 0 to 0.0010
0
Carbon (C), % 0 to 0.0050
0 to 0.12
Chromium (Cr), % 0
17 to 18
Copper (Cu), % 27 to 29
1.5 to 3.5
Iron (Fe), % 0
66.1 to 74.4
Lead (Pb), % 0 to 0.0020
0
Manganese (Mn), % 0
5.0 to 7.0
Nickel (Ni), % 0
2.0 to 4.0
Nitrogen (N), % 0
0.1 to 0.25
Phosphorus (P), % 0 to 0.0020
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 71 to 73
0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.0010
0