CuSn5Zn5Pb5-C / CuSn5Zn5Pb5-B (CC491K / CB491K)
| Common name | Material description | World specifications |
||
|---|---|---|---|---|
| European | British | American | ||
| Leaded bronze / Gun Metal | CuSn5Zn5Pb5 | CC491K / CB491K (EN 1982) | LG2 (BS 1400) | C83600 (ASTM B 505) |
Other name: SS 5204-15, JIS BC6, GOST BrO5Z5S5, AS C83600A, NS 16530, БрО5Ц5С5, G-CuSn5ZnPb.
The equivalence between the standards is not absolute and some variations in composition can exist.
Chemical Composition in %, (EN 1982:2017, Castings)
| Cu* | Sn | Pb | Zn | Ni | Al | Fe | Mn | P | S | Si | Sb | As | Cr | Bi | Cd | Se | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 83.0 | 4.0 | 4.0 | 4.0 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Max | 87.0 | 6.0 | 6.0 | 6.0 | 2.0 | 0.01 | 0.3 | - | 0.1 | 0.1 | 0.01 | 0.25 | - | - | - | - | - |
* Including nickel.
Chemical Composition in %, (EN 1982:2017, Ingots)
| Cua | Sn | Pb | Zn | Ni | Al | Fe | Mn | P | S | Si | Sb | As | Cr | Bi | Cd | Se | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | 83.0 | 4.2 | 4.2 | 4.5 | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Max | 86.5 | 6.0 | 5.8 | 6.5 | 2.0 | 0.01 | 0.25 | - | 0.03 | 0.08 | 0.01 | 0.25 | - | - | - | - | - |
* Including nickel.
Mechanical Properties (EN 1982:2017, Continuous castings)
| Rm | Tensile strength min. | 250 N/mm2 |
| Rp0.2 | Proof Strength min. | 110 N/mm2 |
| A | Elongation min. | 13 % |
| HB | Brinell hardness min. | 65 HBW |
Properties:
- engineering material with the highest elongation;
- corrosion and water proof;
- for air gas and water fittings.
Application:
- low-pressure valves;
- pipe fittings;
- gasoline and oil-line fittings;
- fire extinguishing equipment fittings;
- small gears;
- pump parts;
- general plumbing.