Brass Alloys - Brass CZ108 Properties, Fabrication and Applications, Supplier Data by Aalco

Topics Covered

Background

Brass Classes

Alloy CZ108

Chemical Composition of Brass alloy CZ108

Properties of Brass alloy CZ108

Mechanical Properties of Brass alloy CZ108

Physical Properties of Brass alloy CZ108

Alloy Designations

Corrosion Resistance of Brass alloy CZ108

Fabrication of Brass alloy CZ108

Cold Working of Brass alloy CZ108

Hot Working of Brass alloy CZ108

Welding and Joining of Brass alloy CZ108

Applications of Brass alloy CZ108

Supplied Forms

Background

Brasses are alloys of copper and zinc. They may also contain small amounts of other alloying elements to impart advantageous properties. Brasses have high corrosion resistance and high tensile strength. They are also suited to hot forging. Free machining grades of brass set the standard for machining, by which other metals are compared.

Brass Classes

Brasses are divided into two classes. The alpha alloys, with less than 37% zinc, and the alpha/beta alloys with 37-45% zinc. Alpha alloys are ductile and can be cold worked. Alpha/beta or duplex alloys have limited cold ductility and are harder and stronger. CZ108 is an alpha alloy.

Alloy CZ108

Brass alloy CZ108 is a high purity cold forming brass. It is used when severe bending or riveting properties are required. It can be machined but only with slow speeds and very light feeds.

Chemical Composition of Brass alloy CZ108

Table 1. Typical chemical composition for brass alloy CZ108

%	CZ108
Cu	63
Zn	Balance

Properties of Brass alloy CZ108

Mechanical Properties of Brass alloy CZ108

Table 2. Typical mechanical properties for brass alloy CZ108

Grade	CZ108
Tensile Strength MPa	280-820
Proof Stress MPa	130-800
Elongation %	50-1
Hardness VPN	65-190

Physical Properties of Brass alloy CZ108

Table 3. Typical physical properties for brass alloy CZ108

Property	Value
Density	8.44 kg/m³
Melting Point	916°C
Modulus of Elasticity	103.4 GPa
Thermal Conductivity	116 W/m.K
Thermal Expansion	20.5x10^-6 /°C

Alloy Designations

CZ108 corresponds to the following designations:

CEN	BS	UNS	ISO
CW508L	CZ108	C27200

CZ108 is also sometimes referred to as yellow brass.

Corrosion Resistance of Brass alloy CZ108

The corrosion resistance of Brass alloy CZ108 is excellent to good in most environments. It is not suited for use with acetic acid, moist ammonia or ammonia compounds, hydrochloric acid and nitric acid.

Fabrication of Brass alloy CZ108

Cold Working of Brass alloy CZ108

Cold working of Brass alloy CZ108 is excellent and it can be readily drawn.

Hot Working of Brass alloy CZ108

Fabrication of Brass alloy CZ108 is rated as fair.

Welding and Joining of Brass alloy CZ108

Soldering and brazing of Brass alloy CZ108 are both rated as “excellent”. Oxyacetylene welding is “good” and gas shielded methods are only “fair”. Resistance flash butt-welding may be done on rod, bar and wire.

Applications of Brass alloy CZ108

Brass alloy CZ108 is typically used in:

· Nails

· Chains

· Screws

· Scientific Applications

· Radiators

· Heat Exchangers

Supplied Forms

Brass alloy CZ108 is typically supplied by Aalco in the following forms:

· Half Hard Tube

· Half Hard Sheet

Source: Aalco

For more information on this source please visit Aalco

Date Added: Apr 25, 2005 | Updated: Jun 11, 2013

Ask A Question

Do you have a question you'd like to ask regarding this article?

Leave your feedback

(Logout)

Public Question Private Question to Supplier

Submit