Brass Series
Brass Series
Brass Series
Brass Series
Brass Series
Brass Series
Brass Series
Brass Series

Brass Series

Brass is an alloy of copper and zine, in proportions which can be varied to achieve varying mechanical, electrical, and chemical properties. It is a substitutional alloy: atoms of the two constituents may replace each other within the same crystal structure.

Brass is similar to bronze, another alloy containing copper that uses tin instead of zinc. Both bronze and brass also may include small proportions of a range of other elements including arsenic, lead,phosphorus , aluminum, manganese, and silicon. Historically, the distinction between the two alloys has been less consistent and clear, and modern practice in museums and archaeology increasingly avoids both terms for historical objects in favor of the more general "copper alloy".

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Grade list of copper and copper alloys by country
Classification China Germany America Japan England Europe International
oxygen free copper TU1 2.0076 C10200 C1020R C103
TU2 Cu-OF-H110 C11000 c1011 C101
Vacuum oxygen free copper E-Cu58 TU00 c1020 6N
high purity copper-OFE c10500 c10700
Silver copper TAg 0.1 CuAg 0.1 C10400 C1040 CuAg 0.1
brass H90 CuZn10 C22000 C2200 CZ101 CuZn10 CW501L
H70 CuZn30 C26000 C2600 CZ106 CuZn30 CW505L
H68 C26200 C2620 CuZn33 CW506L
H65 CuZn35 C27000 C2700 CZ107 CuZn36 CW507L
H63 CuZn37 C27200 C2720 CZ108 CuZn37 CW508L
H62 CuZn40 C28000 C2800 CZ109 CW509L
bronze QSn4-0.3 CuSn4 C51100 C5111 PB101 CuSn4 CW450K
CuSn5 C51000 C5101 CuSn5 CW451K
QSn6.5-0.1 CuSn6 C51900 C5191 PB103 CuSn6 CW452K
QSn8-0.3 CuSn8 C52100 C5210 CuSn8 CW453K
copper-nickel BZn18-18 CuNi18Zn20 C75200 C7521 NS106 CuNi18Zn20
BZn18-26 CuNi18Zn27 C77000 C7701 NS107 CuNi18Zn27 CW410J
BZn15-20 C7541 CW409J
BZn18-10 C7350
pure copper TU2 OF-Cu58 C10100 C1011 C101 CW008A copper oxide
T2 SW——copper C11000 C1100 C101 copper - FRHC
TP2 SF-Cu C12200 C1220 C106 CW024A copper - DHP
TP1 SW-copper C12000 C1201 CW023A copper DLP

1.  Brass has long been a popular material for decoration due to its bright, gold-like appearance; being used for drawer pulls and doorknobs. It has also been widely used to make utensils due to properties such as having a low melting point, high workability (both with hand tools and with modern turning and milling machines), durability, and electrical and thermal conductivity.

2.  such as horns and bells, and also used as a substitute for copper in making costume jewelry, fashion jewelry, and other imitation jewelry. The composition of brass, generally 66% copper and 34% zinc, makes it a favorable substitute for copper based jewelry, as it exhibits greater resistance to corrosion. Brass is often used in situations in which it is important that sparks not be struck, such as in fittings and tools used near flammable or explosive materials.

Brass is more malleable than bronze or zinc. The relatively low melting point of brass (900 to 940 °C, 1,650 to 1,720 °F, depending on composition) and its flow characteristics make it a relatively easy material to cast. By varying the proportions of copper and zinc, the properties of the brass can be changed, allowing hard and soft brasses. The density of brass is 8.4 to 8.73 g/cm3 (0.303 to 0.315 lb/cu in).

Today, almost 90% of all brass alloys are recycled.Because brass is not ferromagnetic, it can be separated from ferrous scrap by passing the scrap near a powerful magnet. Brass scrap is collected and transported to the foundry, where it is melted and recast into billets. Billets are heated and extruded into the desired form and size. The general softness of brass means that it can often be machined without the use of cutting fluid, though there are exceptions to this.