Brass Alloys - Brass CZ130 Properties, Fabrication and Applications, Supplier Data by Aalco

Topics Covered

Background

Brass Classes

Alloy CZ130

Chemical Composition of Brass alloy CZ130

Properties of Brass alloy CZ130

Mechanical Properties of Brass alloy CZ130

Physical Properties

Alloy Designations

Corrosion Resistance of Brass alloy CZ130

Fabrication of Brass alloy CZ130

Cold Working of Brass alloy CZ130

Hot Working of Brass alloy CZ130

Machinability

Welding and Joining of Brass alloy CZ130

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 fabrication by 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. CZ130 is a duplex or alpha/beta alloy.

Alloy CZ130

Brass alloy CZ130 is a machinable brass typically used in sections.

Chemical Compositio n of Brass alloy CZ130

Table 1. Typical chemical composition for brass alloy CZ130

%	CZ130 / CW624N
Cu	55-57
Pb	1.6-3.0
Al	0.05-0.5
Zn	Balance

CZ130 also covers brass with Aluminium removed from the above composition. This variation is CW623N. The addition of Aluminium imparts a golden lustre which eliminates the need for additional polishing.

Properties of Brass alloy CZ130

Mechanic al Properties of Brass alloy CZ130

Table 2. Typical mechanical properties for brass alloy CZ130

Grade	CZ130
Tensile Strength (MPa)	350-420
Proof Stress 0.2% (MPa)	150-220
Elongation A5 (%)	20-30
Hardness (HV)	90-120

Physical Properties of Brass alloy CZ130

Table 3. Typical physical properties for brass alloy CZ130

Property	Value
Density	8.44 g/cm³
Melting Point	890°C
Thermal Conductivity	109 W/m.K

Alloy Designations

Brass alloy CZ130 corresponds to the following designations:

CEN	BS	UNS	ISO
CW624N CW623N	CZ130	C3800	CuZn43Pb2Al CuZn43Pb2

Corrosion Resistance of Brass alloy CZ130

Brass alloy CZ130 has good corrosion resistance in most environments.

Fabrication of Brass alloy CZ130

Cold Working of Brass alloy CZ130

Brass alloy CZ130 has a poor to fair rating for cold working.

Hot Working of Brass alloy CZ130

Hot working of Brass alloy CZ130 is excellent. It is normally formed into complex profiles using hot extrusion.

The hot forgeability rating of Brass alloy CZ130 is good to excellent.

Machinability

Brass alloy CZ130 has a very good machinability rating of 90 compared to Alloy 360 FC Brass which is rated as 100.

Welding and Joining of Brass alloy CZ130

· Soldering of Brass alloy CZ130 is rated as “excellent”.

· Oxyacetylene welding and gas shielded arc welding are not recommended.

· Resistance welding is rated as “fair”.

· Friction welding is rated as “good”.

Supplied Forms

Brass alloy CZ130 is typically supplied by Aalco in the following form:

· Angle

Source: Aalco

For more information on this source please visit Aalco

Date Added: Apr 25, 2005 | Updated: Aug 9, 2011

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