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ASTM B780 Alloy vs. S32615 Stainless Steel

ASTM B780 alloy belongs to the otherwise unclassified metals classification, while S32615 stainless steel belongs to the iron alloys. There are 15 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is S32615 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
190
Elongation at Break, % 1.1 to 9.1
28
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 30
75
Shear Strength, MPa 200 to 340
400
Tensile Strength: Ultimate (UTS), MPa 330 to 590
620

Thermal Properties

Latent Heat of Fusion, J/g 140
370
Specific Heat Capacity, J/kg-K 270
500
Thermal Expansion, µm/m-K 18
15

Otherwise Unclassified Properties

Density, g/cm3 10
7.6

Common Calculations

Stiffness to Weight: Axial, points 4.5
14
Stiffness to Weight: Bending, points 14
25
Strength to Weight: Axial, points 9.1 to 16
23
Strength to Weight: Bending, points 11 to 15
21
Thermal Shock Resistance, points 16 to 29
15

Alloy Composition

Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
16.5 to 19.5
Copper (Cu), % 23.5 to 25.7
1.5 to 2.5
Iron (Fe), % 0 to 0.050
46.4 to 57.9
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.3 to 1.5
Nickel (Ni), % 0.35 to 0.65
19 to 22
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
4.8 to 6.0
Silver (Ag), % 74 to 76
0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 0.060
0