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ASTM A372 Grade K Steel vs. Nickel Beryllium 360

ASTM A372 grade K 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 (8, in this case) are not shown.

For each property being compared, the top bar is ASTM A372 grade K 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, % 23
1.0 to 30
Fatigue Strength, MPa 440
260 to 710
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 73
77
Shear Strength, MPa 490
510 to 1100
Tensile Strength: Ultimate (UTS), MPa 780
780 to 1860
Tensile Strength: Yield (Proof), MPa 620
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 48
48
Thermal Expansion, µm/m-K 13
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
5.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
5.4

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.3

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 160
12 to 190
Resilience: Unit (Modulus of Resilience), kJ/m3 1010
360 to 3440
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27
26 to 62
Strength to Weight: Bending, points 24
23 to 41
Thermal Diffusivity, mm2/s 13
13
Thermal Shock Resistance, points 23
19 to 46