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ASTM A27 Cast Steel vs. ZA-8

ASTM A27 cast steel belongs to the iron alloys classification, while ZA-8 belongs to the zinc alloys. There are 29 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 A27 cast steel and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
85 to 86
Elongation at Break, % 25 to 27
1.3 to 8.0
Fatigue Strength, MPa 170 to 230
51 to 100
Poisson's Ratio 0.29
0.26
Shear Modulus, GPa 73
34
Tensile Strength: Ultimate (UTS), MPa 460 to 550
210 to 370
Tensile Strength: Yield (Proof), MPa 230 to 310
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 250
110
Maximum Temperature: Mechanical, °C 400
100
Melting Completion (Liquidus), °C 1460
400
Melting Onset (Solidus), °C 1420
380
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 52
120
Thermal Expansion, µm/m-K 12
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0 to 7.1
28
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
40

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
11
Density, g/cm3 7.8
6.3
Embodied Carbon, kg CO2/kg material 1.4
3.3
Embodied Energy, MJ/kg 18
62
Embodied Water, L/kg 45 to 46
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 96 to 120
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 260
260 to 490
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 16 to 20
9.3 to 17
Strength to Weight: Bending, points 17 to 19
12 to 18
Thermal Diffusivity, mm2/s 14
42
Thermal Shock Resistance, points 15 to 18
7.6 to 13