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SAE-AISI 8740 Steel vs. Nickel Beryllium 360

SAE-AISI 8740 steel 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 (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 8740 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, % 11 to 23
1.0 to 30
Fatigue Strength, MPa 270 to 350
260 to 710
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
77
Shear Strength, MPa 370 to 400
510 to 1100
Tensile Strength: Ultimate (UTS), MPa 580 to 670
780 to 1860
Tensile Strength: Yield (Proof), MPa 380 to 570
380 to 1590

Thermal Properties

Melting Completion (Liquidus), °C 1460
1330
Melting Onset (Solidus), °C 1420
1200
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 39
48
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
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 390 to 850
360 to 3440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 24
26 to 62
Strength to Weight: Bending, points 20 to 22
23 to 41
Thermal Diffusivity, mm2/s 10
13
Thermal Shock Resistance, points 17 to 20
19 to 46

Comparable Variants