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ASTM B780 Alloy vs. SAE-AISI D7 Steel

ASTM B780 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI D7 steel belongs to the iron alloys. There are 13 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM B780 alloy and the bottom bar is SAE-AISI D7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
190
Poisson's Ratio 0.36
0.28
Shear Modulus, GPa 30
73
Tensile Strength: Ultimate (UTS), MPa 330 to 590
800 to 2120

Thermal Properties

Latent Heat of Fusion, J/g 140
270
Specific Heat Capacity, J/kg-K 270
480
Thermal Expansion, µm/m-K 18
11

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
29 to 78
Strength to Weight: Bending, points 11 to 15
25 to 48
Thermal Shock Resistance, points 16 to 29
27 to 72

Alloy Composition

Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
2.2 to 2.5
Chromium (Cr), % 0
11.5 to 13.5
Copper (Cu), % 23.5 to 25.7
0 to 0.25
Iron (Fe), % 0 to 0.050
76.6 to 81.9
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0.35 to 0.65
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.6
Silver (Ag), % 74 to 76
0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
3.8 to 4.4
Zinc (Zn), % 0 to 0.060
0

Comparable Variants