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ASTM B780 Alloy vs. EN 1.4539 Stainless Steel

ASTM B780 alloy belongs to the otherwise unclassified metals classification, while EN 1.4539 stainless steel belongs to the iron alloys. There are 17 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 EN 1.4539 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
200
Elongation at Break, % 1.1 to 9.1
38
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 30
79
Shear Strength, MPa 200 to 340
430
Tensile Strength: Ultimate (UTS), MPa 330 to 590
630

Thermal Properties

Latent Heat of Fusion, J/g 140
300
Specific Heat Capacity, J/kg-K 270
460
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 70 to 76
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 62 to 68
1.9

Otherwise Unclassified Properties

Density, g/cm3 10
8.1

Common Calculations

Stiffness to Weight: Axial, points 4.5
14
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 9.1 to 16
22
Strength to Weight: Bending, points 11 to 15
20
Thermal Shock Resistance, points 16 to 29
14

Alloy Composition

Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 23.5 to 25.7
1.2 to 2.0
Iron (Fe), % 0 to 0.050
43.1 to 51.8
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0.35 to 0.65
24 to 26
Nitrogen (N), % 0
0 to 0.15
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.7
Silver (Ag), % 74 to 76
0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 0 to 0.060
0