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ASTM A216 Cast Steel vs. ASTM B780 Alloy

ASTM A216 cast steel belongs to the iron alloys classification, while ASTM B780 alloy belongs to the otherwise unclassified metals. There are 16 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 A216 cast steel and the bottom bar is ASTM B780 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
83
Elongation at Break, % 25 to 27
1.1 to 9.1
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 72
30
Tensile Strength: Ultimate (UTS), MPa 500 to 570
330 to 590

Thermal Properties

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

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.1 to 7.2
70 to 76
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2 to 8.3
62 to 68

Otherwise Unclassified Properties

Density, g/cm3 7.8
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.5
Stiffness to Weight: Bending, points 24
14
Strength to Weight: Axial, points 18 to 20
9.1 to 16
Strength to Weight: Bending, points 18 to 20
11 to 15
Thermal Shock Resistance, points 16 to 18
16 to 29