Copper and Copper Alloys - Brass

CW505L Sheet

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 brass sets the standard for machining, by which other metals are compared.
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.

Chemical Composition

Spec: EN 1652:1997

CW505L Brass

Chemical Element	% Present
Copper (Cu)	69.00 - 71.00
Aluminium (Al)	0.0 - 0.02
Lead (Pb)	0.0 - 0.05
Nickel (Ni)	0.0 - 0.30
Others (Total)	0.0 - 0.10
Tin (Sn)	0.0 - 0.10
Zinc (Zn)	Balance

Properties

Spec: EN 1652:1997

Sheet - 0.2mm to 5.0mm

Mechanical Property	Value
Tensile Strength	270-480 MPa
Elongation A50 mm	50-9 %
Hardness Vickers	55 to 155 HV
Proof Stress	90-430 MPa

Alloy Designations

CZ106 / CW505L corresponds to the following designation but may not be a direct equivalent:

CuZN30

Supplied Forms

CZ106/CW505L is typically supplied as Sheet

Sheet

Corrosion Resistance

Cold Working

This alloy has excellent cold working properties and is used for extreme deep drawing and cold working applications

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Last Datasheet Revision

18 July 2019

Disclaimer

This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed & online) and manufacturers’ data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources.

Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied.

Advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. All transactions are subject to the Company’s current Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.

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