Yellow Brass UNS C27000

Topics Covered

Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Thermal Properties

Introduction

Yellow brass UNS C27000 is commonly referred to as copper-zinc brass. UNS C27000 shows excellent cold working properties which make it ideal for machining. Architects prefer brass for their shaping ability and colour. Brass is recycled efficiently and proves economical.

The following datasheet summarizes the chemical composition, physical and mechanical properties.

Chemical Composition

The chemical composition of yellow brass UNS C27000 is described in the following table.

Element Content(%)
Copper, Cu 65
Zinc, Zn 35
Iron, Fe 0.070
Lead, Pb 0.10

Physical Properties

The following table provides the physical properties of UNS C27000.

Properties Metric Imperial
Melting point-liquidus 932ºC 1710ºF
Melting point-solidus 904ºC 1660ºF
Density 8.47 gm/cm3 0.306 lb/in3

Mechanical Properties

The mechanical properties of UNS C27000 are described in the following table.

Properties Metric Imperial
Poisson's ratio 0.34 0.34
Elastic modulus 117 Gpa 16969 ksi

Thermal Properties

The following table details the thermal properties of UNS C27000.

Properties Metric Imperial
Thermal expansion co-efficient (20-300ºC/68-572ºF) 20.3 µm/m°C 11.30 µin/in°F
Thermal conductivity (@20ºC/68ºF) 116.0 W/moK 67 Btuft/(hr.ft2.ºF)

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