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ASTM A148 Cast Steel vs. Nickel 725

ASTM A148 cast steel belongs to the iron alloys classification, while nickel 725 belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM A148 cast steel and the bottom bar is nickel 725.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 5.7 to 25
34
Fatigue Strength, MPa 280 to 670
260
Poisson's Ratio 0.29
0.29
Reduction in Area, % 13 to 45
45
Shear Modulus, GPa 73
78
Tensile Strength: Ultimate (UTS), MPa 630 to 1300
860
Tensile Strength: Yield (Proof), MPa 390 to 1160
350

Thermal Properties

Latent Heat of Fusion, J/g 250
320
Maximum Temperature: Mechanical, °C 400 to 430
980
Melting Completion (Liquidus), °C 1460
1340
Melting Onset (Solidus), °C 1420
1270
Specific Heat Capacity, J/kg-K 470
440
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3 to 7.5
1.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3 to 8.6
1.6

Otherwise Unclassified Properties

Base Metal Price, % relative 2.3 to 3.3
75
Density, g/cm3 7.8
8.5
Embodied Carbon, kg CO2/kg material 1.5 to 1.7
13
Embodied Energy, MJ/kg 20 to 22
190
Embodied Water, L/kg 48 to 53
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
240
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 3570
300
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 22 to 46
28
Strength to Weight: Bending, points 21 to 34
24
Thermal Shock Resistance, points 18 to 38
23