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ASTM B780 Alloy vs. S42300 Stainless Steel

ASTM B780 alloy belongs to the otherwise unclassified metals classification, while S42300 stainless steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (18, in this case) are not shown.

For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
200
Elongation at Break, % 1.1 to 9.1
9.1
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 30
77
Shear Strength, MPa 200 to 340
650
Tensile Strength: Ultimate (UTS), MPa 330 to 590
1100

Thermal Properties

Latent Heat of Fusion, J/g 140
270
Specific Heat Capacity, J/kg-K 270
470
Thermal Expansion, µm/m-K 18
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 70 to 76
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 62 to 68
5.2

Otherwise Unclassified Properties

Density, g/cm3 10
7.8

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
39
Strength to Weight: Bending, points 11 to 15
30
Thermal Shock Resistance, points 16 to 29
40

Alloy Composition

Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0.27 to 0.32
Chromium (Cr), % 0
11 to 12
Copper (Cu), % 23.5 to 25.7
0
Iron (Fe), % 0 to 0.050
82 to 85.1
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
1.0 to 1.4
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0.35 to 0.65
0 to 0.5
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Silver (Ag), % 74 to 76
0
Sulfur (S), % 0
0 to 0.025
Vanadium (V), % 0
0.2 to 0.3
Zinc (Zn), % 0 to 0.060
0