28
Cu
Copper
%81.0-85.0
Alloys
CuSn7Zn4Pb7
KUPTİN® R7 | Red Bronze | CuSn7Zn4Pb7 | Rg7
KUPTİN® R7 is a Red Bronze | CuSn7Zn4Pb7 | Rg7 grade for bushings, bearings, rods, tubes, plates, and wear-resistant industrial components.
- ISO
- CuSn7Zn4Pb7
- EN
- CC493K / CB493K
- DIN
- EN 1982
- ASTM
- C93200/ SAE 660
- Density
- 8.8 g/cm³
01. Chemical Composition (%)
50
Sn
Tin
%6.0-8.0
30
Zn
Zinc
%2.0-5.0
82
Pb
Lead
%5.0-7.0
28
Ni
Nickel
% 2.0 Max
02. Mechanical Properties
| Property | Unit | Value | Test Method |
|---|---|---|---|
| Tensile Strength | - | 230-260 N/mm² | - |
| Yield Strength | - | 110-120 N/mm² | - |
| Hardness | 60-70 HB | 60-70 HB | - |
| Density | - | 8,8 g/cm³ | - |
03. Areas of Use
- Hydraulic and Pneumatic Systems: Used for hydraulic cylinder parts and fittings because of its superior sealing capabilities and pressure resistance.
- Valve and Fitting Components: Preferred for valve bodies and internal components (stems, seat rings) in water and steam lines due to high corrosion resistance.
- Automotive and Rail Systems: Used in linkage bushings and friction plates thanks to its moderate load-bearing capacity and good sliding characteristics.
- Marine Engineering: Reliably used for external boat hardware and internal piping components due to its durability against seawater.
- Machine Tools: Serves as protective wear plates or guide bushes for CNC and manual machines where continuous friction occurs.
- Paper and Textile Industry: Utilized in roller bearings and gear components that must withstand chemical corrosion and continuous operational cycles.
04. Üretim Teknolojisi ve Temin Şekilleri
Supply FormsCustom Casting, Hollow Bar / Pipe, Flat Bar / Plate, Round Bar
05. Standartlar ve Karşılaştırılabilir Kaliteler
06. Technical Description
KUPTİN® R7 technical data
KUPTİN® R7 is available for custom casting, continuous casting, centrifugal casting, machining, and industrial spare-part production.
Ayrıntılı teknik açıklamayı görüntüle
KUPTİN® R7 technical data
KUPTİN® R7 is available for custom casting, continuous casting, centrifugal casting, machining, and industrial spare-part production.