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ASTM A732 Cast Steel vs. C68300 Brass

ASTM A732 cast steel belongs to the iron alloys classification, while C68300 brass belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is ASTM A732 cast steel and the bottom bar is C68300 brass.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 4.0 to 25
15
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 72 to 73
40
Tensile Strength: Ultimate (UTS), MPa 460 to 1470
430
Tensile Strength: Yield (Proof), MPa 310 to 1340
260

Thermal Properties

Latent Heat of Fusion, J/g 250 to 260
180
Maximum Temperature: Mechanical, °C 400 to 430
120
Melting Completion (Liquidus), °C 1440 to 1460
900
Melting Onset (Solidus), °C 1400 to 1420
890
Specific Heat Capacity, J/kg-K 470 to 480
390
Thermal Conductivity, W/m-K 39 to 50
120
Thermal Expansion, µm/m-K 13
20

Otherwise Unclassified Properties

Base Metal Price, % relative 2.0 to 3.8
23
Density, g/cm3 7.8 to 7.9
8.0
Embodied Carbon, kg CO2/kg material 1.4 to 1.7
2.8
Embodied Energy, MJ/kg 19 to 24
46
Embodied Water, L/kg 47 to 54
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 45 to 130
56
Resilience: Unit (Modulus of Resilience), kJ/m3 260 to 4770
330
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 16 to 52
15
Strength to Weight: Bending, points 17 to 37
16
Thermal Diffusivity, mm2/s 10 to 14
38
Thermal Shock Resistance, points 14 to 43
14