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C27400 Brass vs. ASTM B522 Class I

C27400 brass belongs to the copper alloys classification, while ASTM B522 class I belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is C27400 brass and the bottom bar is ASTM B522 class I.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
96
Poisson's Ratio 0.31
0.41
Shear Modulus, GPa 40
34
Tensile Strength: Ultimate (UTS), MPa 370 to 650
280 to 490

Thermal Properties

Latent Heat of Fusion, J/g 170
77
Melting Completion (Liquidus), °C 920
1030
Melting Onset (Solidus), °C 870
1030
Specific Heat Capacity, J/kg-K 390
160
Thermal Expansion, µm/m-K 21
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
11
Electrical Conductivity: Equal Weight (Specific), % IACS 31
5.8

Otherwise Unclassified Properties

Density, g/cm3 8.0
17

Common Calculations

Stiffness to Weight: Axial, points 7.2
3.1
Stiffness to Weight: Bending, points 20
8.9
Strength to Weight: Axial, points 13 to 23
4.4 to 7.8
Strength to Weight: Bending, points 14 to 21
5.5 to 8.0
Thermal Shock Resistance, points 12 to 22
13 to 24

Alloy Composition

Copper (Cu), % 61 to 64
0
Gold (Au), % 0
68 to 70
Iron (Fe), % 0 to 0.1
0
Lead (Pb), % 0 to 0.050
0
Platinum (Pt), % 0
5.0 to 7.0
Silver (Ag), % 0
23.5 to 26.5
Zinc (Zn), % 35.6 to 39
0
Residuals, % 0
0 to 0.35