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ASTM B780 Alloy vs. EN 1.0255 Steel

ASTM B780 alloy belongs to the otherwise unclassified metals classification, while EN 1.0255 steel belongs to the iron alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is EN 1.0255 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
190
Elongation at Break, % 1.1 to 9.1
27
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 30
73
Shear Strength, MPa 200 to 340
280
Tensile Strength: Ultimate (UTS), MPa 330 to 590
430

Thermal Properties

Latent Heat of Fusion, J/g 140
250
Specific Heat Capacity, J/kg-K 270
470
Thermal Expansion, µm/m-K 18
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 70 to 76
7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 62 to 68
8.8

Otherwise Unclassified Properties

Density, g/cm3 10
7.8

Common Calculations

Stiffness to Weight: Axial, points 4.5
13
Stiffness to Weight: Bending, points 14
24
Strength to Weight: Axial, points 9.1 to 16
15
Strength to Weight: Bending, points 11 to 15
16
Thermal Shock Resistance, points 16 to 29
14

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.2
Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
0 to 0.16
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 23.5 to 25.7
0 to 0.3
Iron (Fe), % 0 to 0.050
94.1 to 99.98
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0.35 to 0.65
0 to 0.3
Niobium (Nb), % 0
0 to 0.010
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.35
Silver (Ag), % 74 to 76
0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0 to 0.040
Vanadium (V), % 0
0 to 0.020
Zinc (Zn), % 0 to 0.060
0