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S32750 Stainless Steel vs. AWS BVAu-2

S32750 stainless steel belongs to the iron alloys classification, while AWS BVAu-2 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (20, 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 S32750 stainless steel and the bottom bar is AWS BVAu-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
100
Poisson's Ratio 0.27
0.4
Shear Modulus, GPa 81
36
Tensile Strength: Ultimate (UTS), MPa 860
150

Thermal Properties

Latent Heat of Fusion, J/g 300
92
Melting Completion (Liquidus), °C 1450
890
Melting Onset (Solidus), °C 1400
890
Specific Heat Capacity, J/kg-K 480
180
Thermal Expansion, µm/m-K 12
15

Otherwise Unclassified Properties

Density, g/cm3 7.8
17

Common Calculations

Stiffness to Weight: Axial, points 15
3.3
Stiffness to Weight: Bending, points 25
9.1
Strength to Weight: Axial, points 31
2.4
Strength to Weight: Bending, points 26
3.6
Thermal Shock Resistance, points 25
7.1

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0 to 0.030
0 to 0.0050
Chromium (Cr), % 24 to 26
0
Copper (Cu), % 0 to 0.5
19.5 to 20.5
Gold (Au), % 0
79.5 to 80.5
Iron (Fe), % 58.1 to 66.8
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0 to 1.2
0
Molybdenum (Mo), % 3.0 to 5.0
0
Nickel (Ni), % 6.0 to 8.0
0
Nitrogen (N), % 0.24 to 0.32
0
Phosphorus (P), % 0 to 0.035
0 to 0.0020
Silicon (Si), % 0 to 0.8
0
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 0.0010