Yellow Brass Tubes UNS C27400 - Mechanical Properties

Sep 27 2012

Yellow brass UNS C27400 has a copper content of not less than 61%.

The following table shows the mechanical properties of UNS C27400 tubes as a function of heat treatment.

Temper Tensile Str. Yield Str. Elong. Rockwell
B C F 30T
H80 510MPa (74ksi) 379MPa (55ksi) 10% 80 - - -
OS025 386MPa (56ksi) 159MPa (23ksi) 50% - - 82 -

Equivalent materials to UNS C27400 copper alloy are given below:

  • ASTM B134
  • QQ W321

The chemical composition of UNS C27400 copper alloy is outlined in the following.

Element Content (%)
Copper, Cu 61-64
Lead, Pb 0.09
Iron, Fe 0.05
Zinc. Zn Balance

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