Brasses are copper-zinc alloys, with or without relatively small quantities of other elements, namely aluminium, iron, lead, manganese, nickel, silicon and tin. These alloys are characterized by moderate to high strength (depending on grade), good corrosion resistance, good electrical and thermal conductivity, and an attractive colour.
Lead is frequently added to brass to improve machinability and pressure tightness. Addition of tin helps to improve corrosion resistance. Aluminium is sometimes added to increase fluidity and to give a smooth surface.
Product Information
| Element Composition by Weight (%) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| JIS | UNS | Copper (Cu) | Lead (Pb) | Iron (Fe) | Tin (Sn) | Zinc (Zn) | Nickel (Ni) | Arsenic (As) | Others | |
Brass | C2700 | C27000 | 63.0-67.0 | ≤ 0.05 | ≤ 0.05 | – | Rem. | – | – | |
| C2720 | C27200 | 62.0-64.0 | ≤ 0.07 | ≤ 0.07 | – | Rem. | – | – | ||
Free Cuting Brass | C3602 | C36000 | 59.0-63.0 | 1.8-3.7 | ≤ 0.50 | (Fe+Sn)1.0 | Rem. | – | – | – |
| C3604 | – | 57.0-61.0 | 1.8-3.7 | ≤ 0.50 | (Fe+Sn)0.8 | Rem. | ≤ 0.2 | ≤ 0.02 | – | |
Remarks
1. The Unified Numbering System (UNS) is the accepted alloy designation system in North America for wrought & cast copper and copper alloy products.
Both (Japanese Industrial Standard) JIS and UNS have equivalent standards.
2. For low lead brass options (e.g. C2700), consult our sales personnel for more details for supply.
3. Unless specified as range, value is of maximum %.
4. Material may contain trace of Cadmium (Cd).
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