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Grade 20 Cast Iron vs. Nickel Beryllium 360

Grade 20 cast iron belongs to the iron alloys classification, while nickel beryllium 360 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 20 cast iron and the bottom bar is nickel beryllium 360.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 180
200
Elongation at Break, % 9.6
1.0 to 30
Fatigue Strength, MPa 69
260 to 710
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 69
77
Shear Strength, MPa 180
510 to 1100
Tensile Strength: Ultimate (UTS), MPa 160
780 to 1860
Tensile Strength: Yield (Proof), MPa 98
380 to 1590

Thermal Properties

Melting Completion (Liquidus), °C 1380
1330
Melting Onset (Solidus), °C 1180
1200
Specific Heat Capacity, J/kg-K 490
460
Thermal Conductivity, W/m-K 46
48
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
5.4

Otherwise Unclassified Properties

Density, g/cm3 7.5
8.3

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
12 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 27
360 to 3440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 5.8
26 to 62
Strength to Weight: Bending, points 8.7
23 to 41
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 6.0
19 to 46