C66900 Brass vs. Automotive Grey Cast Iron

C66900 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 (7, in this case) are not shown.

For each property being compared, the top bar is C66900 brass and the bottom bar is automotive grey cast iron.

UNS C66900 Manganese Brass Automotive Grey Cast Iron

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		120
Elastic (Young's, Tensile) Modulus, GPa		180

Elongation at Break, %		1.1 to 26
Elongation at Break, %		9.6 to 14

Poisson's Ratio		0.32
Poisson's Ratio		0.29

Shear Modulus, GPa		45
Shear Modulus, GPa		69 to 70

Tensile Strength: Ultimate (UTS), MPa		460 to 770
Tensile Strength: Ultimate (UTS), MPa		140 to 290

Tensile Strength: Yield (Proof), MPa		330 to 760
Tensile Strength: Yield (Proof), MPa		94 to 200

Thermal Properties

Latent Heat of Fusion, J/g		190
Latent Heat of Fusion, J/g		260 to 280

Melting Completion (Liquidus), °C		860
Melting Completion (Liquidus), °C		1380 to 1390

Melting Onset (Solidus), °C		850
Melting Onset (Solidus), °C		1340 to 1350

Specific Heat Capacity, J/kg-K		400
Specific Heat Capacity, J/kg-K		490

Thermal Expansion, µm/m-K		20
Thermal Expansion, µm/m-K		12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		3.4
Electrical Conductivity: Equal Volume, % IACS		7.4 to 7.6

Electrical Conductivity: Equal Weight (Specific), % IACS		3.8
Electrical Conductivity: Equal Weight (Specific), % IACS		8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative		23
Base Metal Price, % relative		1.9 to 3.0

Density, g/cm³		8.2
Density, g/cm³		7.5 to 7.6

Embodied Carbon, kg CO₂/kg material		2.8
Embodied Carbon, kg CO₂/kg material		1.5 to 1.7

Embodied Energy, MJ/kg		46
Embodied Energy, MJ/kg		21 to 24

Embodied Water, L/kg		310
Embodied Water, L/kg		44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		4.6 to 200
Resilience: Ultimate (Unit Rupture Work), MJ/m³		18 to 25

Resilience: Unit (Modulus of Resilience), kJ/m³		460 to 2450
Resilience: Unit (Modulus of Resilience), kJ/m³		25 to 110

Stiffness to Weight: Axial, points		8.1
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		20
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		15 to 26
Strength to Weight: Axial, points		5.2 to 11

Strength to Weight: Bending, points		16 to 23
Strength to Weight: Bending, points		8.0 to 13

Thermal Shock Resistance, points		14 to 23
Thermal Shock Resistance, points		4.2 to 8.6