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C38000 Brass vs. Automotive Grey Cast Iron

C38000 brass belongs to the copper alloys classification, while automotive grey cast iron belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C38000 brass and the bottom bar is automotive grey cast iron.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
180
Elongation at Break, % 17
9.6 to 14
Poisson's Ratio 0.31
0.29
Shear Modulus, GPa 39
69 to 70
Tensile Strength: Ultimate (UTS), MPa 380
140 to 290
Tensile Strength: Yield (Proof), MPa 120
94 to 200

Thermal Properties

Latent Heat of Fusion, J/g 170
260 to 280
Melting Completion (Liquidus), °C 800
1380 to 1390
Melting Onset (Solidus), °C 760
1340 to 1350
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 110
41 to 43
Thermal Expansion, µm/m-K 21
12 to 14

Otherwise Unclassified Properties

Base Metal Price, % relative 22
1.9 to 3.0
Density, g/cm3 8.0
7.5 to 7.6
Embodied Carbon, kg CO2/kg material 2.7
1.5 to 1.7
Embodied Energy, MJ/kg 46
21 to 24
Embodied Water, L/kg 330
44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 50
18 to 25
Resilience: Unit (Modulus of Resilience), kJ/m3 74
25 to 110
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13
5.2 to 11
Strength to Weight: Bending, points 14
8.0 to 13
Thermal Diffusivity, mm2/s 37
11 to 12
Thermal Shock Resistance, points 13
4.2 to 8.6