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C68400 Brass vs. ASTM A732 Cast Steel

C68400 brass belongs to the copper alloys classification, while ASTM A732 cast steel belongs to the iron 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 C68400 brass and the bottom bar is ASTM A732 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
140 to 440
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 18
4.0 to 25
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 41
72 to 73
Tensile Strength: Ultimate (UTS), MPa 540
460 to 1470
Tensile Strength: Yield (Proof), MPa 310
310 to 1340

Thermal Properties

Latent Heat of Fusion, J/g 210
250 to 260
Maximum Temperature: Mechanical, °C 130
400 to 430
Melting Completion (Liquidus), °C 840
1440 to 1460
Melting Onset (Solidus), °C 820
1400 to 1420
Specific Heat Capacity, J/kg-K 400
470 to 480
Thermal Conductivity, W/m-K 66
39 to 50
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 87
7.1 to 7.7
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.2 to 8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 23
2.0 to 3.8
Density, g/cm3 7.9
7.8 to 7.9
Embodied Carbon, kg CO2/kg material 2.7
1.4 to 1.7
Embodied Energy, MJ/kg 47
19 to 24
Embodied Water, L/kg 320
47 to 54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 81
45 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 460
260 to 4770
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 20
24
Strength to Weight: Axial, points 19
16 to 52
Strength to Weight: Bending, points 19
17 to 37
Thermal Diffusivity, mm2/s 21
10 to 14
Thermal Shock Resistance, points 18
14 to 43