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ASTM B780 Alloy vs. SAE-AISI M44 Steel

ASTM B780 alloy belongs to the otherwise unclassified metals classification, while SAE-AISI M44 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 M44 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 83
200
Poisson's Ratio 0.36
0.29
Shear Modulus, GPa 30
78
Tensile Strength: Ultimate (UTS), MPa 330 to 590
870 to 2290

Thermal Properties

Latent Heat of Fusion, J/g 140
270
Specific Heat Capacity, J/kg-K 270
440
Thermal Expansion, µm/m-K 18
12

Otherwise Unclassified Properties

Density, g/cm3 10
8.4

Common Calculations

Stiffness to Weight: Axial, points 4.5
13
Stiffness to Weight: Bending, points 14
23
Strength to Weight: Axial, points 9.1 to 16
28 to 75
Strength to Weight: Bending, points 11 to 15
24 to 46
Thermal Shock Resistance, points 16 to 29
27 to 70

Alloy Composition

Cadmium (Cd), % 0 to 0.050
0
Carbon (C), % 0
1.1 to 1.2
Chromium (Cr), % 0
4.0 to 4.8
Cobalt (Co), % 0
11 to 12.3
Copper (Cu), % 23.5 to 25.7
0 to 0.25
Iron (Fe), % 0 to 0.050
65.3 to 70.6
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0
0.2 to 0.4
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0.35 to 0.65
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.3 to 0.55
Silver (Ag), % 74 to 76
0
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
5.0 to 5.8
Vanadium (V), % 0
1.9 to 2.2
Zinc (Zn), % 0 to 0.060
0

Comparable Variants