28
Cu
Copper
%57.0 -65.0
CuZn34Mn3Al2Fe1-B
KUZRAL® 1 | Manganese Bronze
KUZRAL® 1 is a Manganese Bronze | CuZn34Mn3Al2Fe1-B grade for bushings, bearings, rods, tubes, plates, and wear-resistant industrial components.
- ISO
- CuZn34Mn3Al2Fe1-B
- EN
- CC764S CuZnAl
01. Chemical Composition (%)
30
Zn
Zinc
Rest
25
Mn
Manganese
%1.5 - 3.0
13
Al
Aluminium
%1.0 - 3.0
26
Fe
Iron
%0.5 - 2.0
28
Ni
Nickel
%1.0 - Max
02. Mechanical Properties
| Property | Unit | Value | Test Method |
|---|---|---|---|
| Tensile Strength | — | 600 - 750 N/mm² | — |
| Yield Strength | — | 250-350 N/mm² | — |
| Hardness | — | 140 - 180 HB | — |
| Density | — | 8.0 g/cm³ | — |
03. Applications
- Heavy-Duty Bearings & Bushings: Industrial bearings operating under high surface pressure where standard bronzes fail.
- Hydraulic System Components: High-pressure hydraulic cylinder ends, sealing elements, and valve bodies.
- Marine & Shipbuilding: Propeller shaft sleeves, rudder system components, and fittings exposed to seawater.
- Aerospace & Defense: Landing gear bushings, wing actuator parts, and high-tension structural components.
- Construction & Heavy Machinery: High-strength pins and bushings for joints in excavators, cranes, and earthmovers.
- Bridge & Dam Equipment: Expansion joint bearings, wear plates, and segment gears for large-scale infrastructure.
- Automotive Industry: Synchronizer rings, shift fork components, and high-friction transmission parts.
04. Manufacturing Technology and Supply Forms
Supply FormsCustom Casting, Hollow Bar / Pipe, Flat Bar / Plate, Round Bar
05. Standards and Comparable Grades
06. Technical Description
View Detailed Technical Description
KUZRAL® 1 technical data
KUZRAL® 1 is available for custom casting, continuous casting, centrifugal casting, machining, and industrial spare-part production.