Brass & Bronze Alloys

Home > Products > Brass & Bronze Products > Brass & Bronze Alloys

Brass & Bronze Alloys



Free Machining Brass

Brass is essentially copper alloyed with zinc. It is strong but easy to form, stamp or draw which make it a common choice for a broad spectrum of applications. By varying the amount of zinc content it is possible to achieve a variety of characteristics including different levels of corrosion resistance, ductility and suitability for machining.

Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn36Pb3 C36000
C35600
C36010
CW603N
CZ124
C3601
C3602
IS 319 Gr II
CuZn39Pb3 C38500
CW614N
CZ121PB3
C3603
C3604
IS 319 GR I
CuZn38Pb4 - CW609N
CZ121PB4
- -


Forging Brass

Forging Brass is an alloy of copper and Zinc, in properties which can be varied to achieve varying mechanical and electrical properties. It is a substitution alloy: atoms of the two constituents may replace each other within the same crystal structure. Forging brass can be easily shaped. Forging brass has high thermal conductivity and have excellent hot forgeability properties. They are available in the form of rod.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn39Pb1 C36500
CW610N
CW611N
CZ129
C3712
-
CuZn39Pb2 C37700
CW612N
- - -
CuZn40Pb2 C37710
C38000
CW617N
CZ122
C3771
6912 FLB
CuZn38Pb2 - CW608N
CZ128
- -
CuZn39Pb2Sn - CW613N
- - -
CuZn40Pb1Al - CW616N
- - -
CuZn40Pb2Sn - CW619N
- - -
CuZn39Pb2Mn - - - - 8737 MOD


Naval Brass

Naval brass is the classic marine, high-strength and corrosion-resistant alloy containing 60 percent copper, .75 percent tin and 39.2 percent zinc. The addition of Tin also gives Naval Brass a high resistance to dezincification. It is widely used in marine construction where strong, corrosive-resistant and hard material is required and is suitable for both salt and fresh water applications. Naval Brasses have good strength and rigidity. The alloys are noted for their resistance to wear, fatigue and stress corrosion cracking.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn39Sn1 C46400
C47000
CW719R
- C4641
-
CuZn38Sn1As C46500
CW717R
- - -
CuZn35NiFe1Sn1Pb2 C47940
- - - -
CuZn38Sn1 C48200
- CZ112
- -
CuZn37Sn1Pb C48500
C46200
CW712R
CW714R
CZ133
- 291 Gr I
CuZn37Sn1Pb1As C48600
- - - -
CuZn36Sn1Pb2 - CW711R
- - -
CuZn37Sn1Pb2 - - CZ134
C4622
291 GR II
CuZn37Sn1 - - - - 6912 FNB


Leaded Brass

Lead increases the machinability of brass as well as increasing its strength and resistance to corrosion. The addition of lead also seals shrinkage pores to provide pressure tightness. Brasses can contain up to 3.5 percent in lead contents, and are classified as low, medium, or high-leaded. Leaded brass may be used to make screws, valves, fittings, bearings, specialty fasteners, architectural hardware, and general purpose machine parts.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn39Pb1 C36500
CW610N
CW611N
CZ129
C3712
-
CuZn35Pb1 C34000
C33500
CW604N
CZ119
C2700
2704
CuZn36Pb2As C35330
CW602N
CZ132
- -
Cuzn35Pb3NiP C35350
- - - -
CuZn38Pb1 C37000
C37100
CW607N
- - -
CuZN35Pb2 C34200
C34500
C35000
CW601N
- - -
CuZn37Pb1 - CW605N
- - 319 III
CuZn37Pb2 C35300
CW606N
CZ131
- -
CuZn40PB3Al - CW623N
CZ130
- -
CUZn40Pb - - CZ137
- -
CuZn42PbAl - CW621N
- - -
CuZn43Pb1Al - CW622N
- - -
CuZn43Pb2Al - CW624N
- - -
CuZn39Pb0.5 C36300
- - - -


Lead Free Brass

Lead free brass possess relatively good corrosion resistance, moderately high strength, and in some forms, it has very good ductility. Its hot forms are strong. It also called Muntz metal. It is available mainly in 60/40, 63/37, 65/35 & 70/30 Cu/Zn ratio. A ductile alloy is suitable for blanking, riveting, bending, hot forging & pressing.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn35 C27000
- - - -
CuZn37 C27200
C27400
C27450
CW508L
CZ108
- 4413
CuZn36 - CW507L
- - -
CuZn37p C27451
- - - -
CuZn38As - CW511L
- - -
CuZn40 C28000
CW509L
CZ109
C2800
4170
CuZn42 C28500
CW510L
- - -
CuZn30 C26000
CW505L
CZ106
- -
CuZn33 C26800
C26200
CW506L
CZ107
- -
CuZn30As - CW707R
CZ126
- -
CuZn28Sn1As - CW706R
- - -
CuZn15 C23000
- - - -
CuZn18 C23400
- - - -


Silicon Red Brass

Silicon Red Brass is according to ELV and ROHS a lead-free special brass resisting high load and exhibiting good corrosion resistance as well as excellent machinability. This alloy is suited to the production of machined and drop forged parts. ECOBRASS is available as marching brass as well as in hot stamping quality. This material is also marketed under the designation CUPHIN for sanitary applications. The material meets the requirements of ISO 6509 regarding the dezincification resistance. Material accepted for products in contact with drinking water as per 4 MS positive list.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn14Si4 C69430
- - - -
CuZn18Si3Pb1 C69700
- - - -
CuZn19Si3 C69710
- - - -
CuZn20Si3P C69300
- - - -
CuZn21Si3P - CW724R
- - -
CuZn31Si1 - CW708R
- - -


Manganese Bronze

Manganese bronze contains small additions of manganese, iron, and aluminium, plus lead for lubricity, anti-seizing, and bonding. Like the aluminium bronzes, they combine high strength with excellent corrosion resistance. Manganese bronze bearings can operate at high speeds under heavy loads, but require high shaft hardness and nonabrasive operating conditions. The various types of manganese bronze are a popular choice for the aerospace, fastener, marine, and oil and gas Industries. Typical applications in these industries include landing gear parts, strut bushings, screw machine parts, bearings, bushings, gears, and lead screw nuts.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn39AlFeMn - - - C6782
C6783
320 HT 2
CuZn37Mn3Al1Si1 C67400
- - - -
CuZn38Mn2Al1PbFeSi C67420
- - - -
CuZn39Fe1Pb,5Sn1Mn C67500
- - - -
CuZn39Fe1Sn1PbMn C67600
- - - -
CuZn39Fe1Sn1NiMnSi C68000
- - - -
CuZn39Fe1Sn1MnSi C68100
- - - -
CuZn38Pb1Al1Fe1Mn1Sn C68600
- - - -
CuZn35Ni3Mn2AlPb - CW710R
- - -
CuZn37Mn3Al2PbSi - CW713R
- - -
CuZn38Mn1Al - CW716R
- - -
CuZn39Mn1AlPbSi - CW718R
- - -
CuZn40Mn1Pb1 - CW720R
- - -
CuZn40Mn1Pb1AlFeSn - CW721R
- - -
CuZn40Mn1Pb1FeSn - CW722R
- - -
CuZn39FeMn - - CZ115
- 320 HT 1
CuZn27Fe1Al5Mn2 - - CZ116
- -
CuZn37Mn3Al2Si - - CZ135
- -
CuZn38Pb3Mn1 - - CZ136
- -
CuZn40Mn2 - CW723R
- - -
CuZn37FeSnMn2 - - - - 6912 FHTB1
CuZn37FeSnAlMn - - - - 6912 FHTB2
CuZn40Pb1Mn1 - - - - 6912 FMn1
CuZn35Mn3Pb2Si1 C67300
- - - -
CuZn39AlFeMn - - CZ114
- -


Leaded Bronze

The main function of leaded bronze group of alloys is to improve machinability. They are known for their resistance towards corrosion and abrasion and their long service life. Common applications include connectors for wire and cable, electrical plug type connectors, door knobs, screws and nuts, bushings for corrosion, rolling mill bearings, and many more.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn10Pb1Ni C31600
- - - -
CuZn10Pb1 C31400
- - - -


Low Leaded Bronze

Silicon Red Brass is according to ELV and ROHS a lead-free special brass resisting high load and exhibiting good corrosion resistance as well as excellent machinability. This alloy is suited to the production of machined and drop forged parts. ECOBRASS is available as marching brass as well as in hot stamping quality. This material is also marketed under the designation CUPHIN for sanitary applications. The material meets the requirements of ISO 6509 regarding the dezincification resistance. Material accepted for products in contact with drinking water as per 4 MS positive list.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn10Pb1 C31200
- - - -


Non Leaded Bronze

The attractive golden hue of this metal makes it easy to understand how it received the name Jewellery Bronze. This beautiful brass can be buffed and lacquered to display its natural colour, or used as a base for gold plating. Its moderate strength, resistance to corrosion, electrical conductivity and ability to be deep drawn make C226 a great material option for many design engineers working on functional applications including hinges, doorknobs, and select electrical connectors.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn10 C22000
- - - -
CuZn12 C22600
- - - -


Bismuth Bronze

Bismuth Bronze ( C6802, C6804) is a copper alloy which typically contains 1-3% bismuth by weight.


Equivalent Specification
ISO Symbols Equivalent Alloy
UNS EN BS JIS IS
CuZn34Bi3Sn2 - - - C6802
C6804
-