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C27000 Brass vs. ASTM A387 Grade 9 Steel

C27000 brass belongs to the copper alloys classification, while ASTM A387 grade 9 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C27000 brass and the bottom bar is ASTM A387 grade 9 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.31
0.28
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 370 to 650
500 to 600

Thermal Properties

Latent Heat of Fusion, J/g 180
270
Maximum Temperature: Mechanical, °C 130
600
Melting Completion (Liquidus), °C 930
1460
Melting Onset (Solidus), °C 900
1410
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 120
26
Thermal Expansion, µm/m-K 20
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 30
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
6.5
Density, g/cm3 8.1
7.8
Embodied Carbon, kg CO2/kg material 2.7
2.1
Embodied Energy, MJ/kg 45
28
Embodied Water, L/kg 320
87

Common Calculations

Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 13 to 22
18 to 21
Strength to Weight: Bending, points 14 to 21
18 to 20
Thermal Diffusivity, mm2/s 37
6.9
Thermal Shock Resistance, points 12 to 22
14 to 17

Alloy Composition

Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
8.0 to 10
Copper (Cu), % 63 to 68.5
0
Iron (Fe), % 0 to 0.1
87.1 to 90.8
Lead (Pb), % 0 to 0.070
0
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Vanadium (V), % 0
0 to 0.040
Zinc (Zn), % 31 to 37
0
Residuals, % 0 to 0.3
0