Continuous Casting Foundry
Copper alloys
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AS Krāsaino Metālu Manufaktūra
116 Daugavgrivas str., Riga, Latvia, LV1055
Secretary: + 371 67 40 80 15
Sales: + 371 67 40 80 22
E-mail: kmmf@kmmf.lv
116 Daugavgrivas str., Riga, Latvia, LV1055
Secretary: + 371 67 40 80 15
Sales: + 371 67 40 80 22
E-mail: kmmf@kmmf.lv
CuSn7Zn4Pb7-C (CC493K) Rg7
Standards
|
Krāsaino Metālu Manufaktūra cast alloy |
EN 1982:2008 |
German DIN |
British BS |
US ASTM |
Russian |
| Rg7 | CuSn7Zn4Pb7-C (CC493K) |
GC-CuSn7ZnPb (DIN 1705, Nr.2.1090.04) |
- | C93200 (ASTM B 505) SAE 660 |
Other: ISO CuSn7Pb7Zn3, UNE C-3530, SAE 660, DS 5426.
The equivalence between the standards is not absolute and some variations in composition can exist.
Chemical Composition in %
|
|
Cu* | Sn | Pb | Zn | Ni | Al | Fe | Mn | P | S | Si | Sb | As | Cr | Bi | Cd | Se |
|
Min. |
81.0 | 5.2 | 5.0 | 2.0 | - | - | - | - | - | - | - | - | - | - | - | - | - |
|
Max. |
86.0 | 8.0 | 8.0 | 5.0 | 2.0 | 0.01 | 0.2 | - | 0.1 | 0.1 | 0.01 | 0.3 | - | - | - | - | - |
Mechanical Properties:
| Rm | Tensile strength min. |
260 N/mm2 |
|
Rp0.2 |
Proof Strength min. |
120 N/mm2 |
|
A |
Elongation min. |
12 % |
|
HB |
Brinell hardness min. |
70 HBW |
Properties:
- material for plain bearings in mechanical engineering with medium loads;
- very good emergency running;
- high wear resistance;
- sea water resistant.
Application:
- bearings of cranes and elevators;
- minor machine tool bearings;
- piston pin bushes for load up to 50N/mm2;
- bearing for packing machines and electric motors;
- general bearing in mechanical engineering;
- valve and gate seat rings;
- guide bushes in hydraulic cylinders;
- slip rings.
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