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ASTM A27 Cast Steel vs. Nickel 686

ASTM A27 cast steel belongs to the iron alloys classification, while nickel 686 belongs to the nickel alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM A27 cast steel and the bottom bar is nickel 686.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
220
Elongation at Break, % 25 to 27
51
Fatigue Strength, MPa 170 to 230
410
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
77
Tensile Strength: Ultimate (UTS), MPa 460 to 550
780
Tensile Strength: Yield (Proof), MPa 230 to 310
350

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400
980
Melting Completion (Liquidus), °C 1460
1380
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 470
420
Thermal Conductivity, W/m-K 52
9.8
Thermal Expansion, µm/m-K 12
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
1.4

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
70
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 1.4
12
Embodied Energy, MJ/kg 18
170
Embodied Water, L/kg 45 to 46
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
320
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
280
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
22
Strength to Weight: Axial, points 16 to 20
24
Strength to Weight: Bending, points 17 to 19
21
Thermal Diffusivity, mm2/s 14
2.6
Thermal Shock Resistance, points 15 to 18
21