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Nickel 684 vs. ASTM A302 Alloy Steel

Nickel 684 belongs to the nickel alloys classification, while ASTM A302 alloy steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is nickel 684 and the bottom bar is ASTM A302 alloy steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 11
20 to 23
Fatigue Strength, MPa 390
250 to 280
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 76
73
Shear Strength, MPa 710
370 to 390
Tensile Strength: Ultimate (UTS), MPa 1190
590 to 620
Tensile Strength: Yield (Proof), MPa 800
350 to 390

Thermal Properties

Latent Heat of Fusion, J/g 320
250
Maximum Temperature: Mechanical, °C 1000
410
Melting Completion (Liquidus), °C 1370
1460
Melting Onset (Solidus), °C 1320
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 13
13

Otherwise Unclassified Properties

Base Metal Price, % relative 75
2.4 to 3.0
Density, g/cm3 8.3
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 10
1.5 to 1.6
Embodied Energy, MJ/kg 140
20 to 21
Embodied Water, L/kg 360
48 to 50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1610
330 to 410
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 23
24
Strength to Weight: Axial, points 40
21 to 22
Strength to Weight: Bending, points 30
20 to 21
Thermal Shock Resistance, points 34
17 to 18