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.
Copper, Brass & Bronze alloys explained
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. CZ114 is a duplex or alpha/beta alloy.
Alloy CZ114
Brass alloy CZ114 is a versatile high strength, hot workable, machinable engineering alloy.
Chemical Composition of Brass alloy CZ114
Table 1. Chemical composition for brass alloy CZ114
Chemical Element
|
%
|
Cu
|
57.00 - 59.00
|
Pb
|
0.80 - 1.60
|
Sn
|
0.20 - 1.00
|
Fe
|
0.20 - 1.20
|
Al
|
0.30 - 1.30
|
Mn
|
0.80 - 1.80
|
Zn
|
Balance
|
Ni
|
-
|
Properties of Brass alloy CZ114
Mechanical Properties of Brass alloy CZ114
Table 2. Mechanical properties for brass alloy CZ114
Property
|
Value
|
Tensile Strength
|
440 - 500 MPa
|
Proof Stress
|
180 - 270 MPa
|
Elongation A
|
20 - 12%
|
Hardness Brinell
|
100 - 140 Max HB
|
Physical Properties of Brass alloy CZ114
Table 3. Physical properties for brass alloy CZ114
Property
|
Value
|
Density
|
8.63 g/cm3
|
Melting Point
|
865 °C
|
Modulus of Elasticity
|
96.5 GPa
|
Electrical Resistivity
|
0.9 x 10-6 Ω.m
|
Thermal Conductivity
|
88.3 W/m.K
|
Alloy Designations
Brass alloy CZ114 corresponds to the following designations:
CEN
|
BS
|
UNS
|
CW721R
|
CZ114
|
C67500
|
Brass alloy CZ114 is also sometimes called Manganese Bronze.
Corrosion Resistance of Brass alloy CZ114
The addition of Tin to the composition of Brass alloy CZ114 increases this alloys’ resistance to corrosion in marine and mildly acidic environments.
Fabrication of Brass alloy CZ114
Cold Working of Brass alloy CZ114
Brass alloy CZ114 has a poor rating for cold working.
Hot Working of Brass alloy CZ114
Hot working of Brass alloy CZ114 is excellent.
The hot forgeability rating of Brass alloy CZ114 is very good at 80 compared to forging brass which rated as 100. The recommended hot working temperature for this CZ114 is between 625 and 750°C.
Heat Treatment of Brass alloy CZ114
The annealing temperature of Brass alloy CZ114 is between 425°C and 600°C.
Machinability
Brass alloy CZ114 has a poor machinability rating of 30 compared to Alloy 360 FC Brass which is rated as 100.
Welding and Joining of Brass alloy CZ114
- Soldering and brazing of Brass alloy CZ114 are rated as “excellent”.
- Oxyacetylene welding, butt welding and spot welding are rated as “good”.
- Gas shielded arc welding and seam welding are rated as “fair”.
- Coated metal arc welding is not recommended.
Applications of Brass alloy CZ114
Brass alloy CZ114 is typically used in:
- Architectural applications
- High strength components
- Valves
- Valve stems
- Fittings
- Marine fittings
Supplied Forms
Brass alloy CZ114 is typically supplied by Aalco in the following forms:
DISCLAIMER
This Data is indicative only and must not be seen as a substitute for the full specification from which it is drawn. In particular, the mechanical property requirements vary widely with temper, product and product dimensions. The information is based on our present knowledge and is given in good faith. However, no liability will be accepted by the Company is respect of any action taken by any third party in reliance thereon.
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.
Any 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. Any contract between the Company and a customer will be subject to the company’s 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.
This information has been sourced, reviewed and adapted from materials provided by Aalco - Ferrous and Non-Ferrous Metals Stockist.
For more information on this source, please visit Aalco - Ferrous and Non-Ferrous Metals Stockist.