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ACI-ASTM CB7Cu-2 Steel vs. Nickel Beryllium 360

ACI-ASTM CB7Cu-2 steel belongs to the iron alloys classification, while nickel beryllium 360 belongs to the nickel alloys. There are 23 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 ACI-ASTM CB7Cu-2 steel and the bottom bar is nickel beryllium 360.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 11
1.0 to 30
Fatigue Strength, MPa 420 to 590
260 to 710
Poisson's Ratio 0.28
0.3
Shear Modulus, GPa 75
77
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
780 to 1860
Tensile Strength: Yield (Proof), MPa 760 to 1180
380 to 1590

Thermal Properties

Melting Completion (Liquidus), °C 1430
1330
Melting Onset (Solidus), °C 1380
1200
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 17
48
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
5.4

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.3

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
12 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1510 to 3600
360 to 3440
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 34 to 48
26 to 62
Strength to Weight: Bending, points 28 to 35
23 to 41
Thermal Diffusivity, mm2/s 4.6
13
Thermal Shock Resistance, points 32 to 45
19 to 46