KUZRAL® 3
Manganese Bronze / CC750S / C86300 / KUZRAL 3
Take your industrial performance to the next level with CuZn37Mn3Al2PbSi-C. This specialized manganese-silicon bronze is meticulously crafted by Çorum Bronz to deliver maximum reliability under extreme pressure. Featuring high mechanical strength, remarkable wear resistance, and superior machinability, it is the definitive engineering solution for high-load bearings, gears, and intricate mechanical parts. Experience the strength of advanced metallurgy.
01. Chemical Composition (%)
science02. Industries Served
factory03. Supply Forms
inventory_204. Mechanical Properties
engineering| Property Name | Imperial (psi) | Metric (MPa) | Test Method |
|---|---|---|---|
| Tensile Strength (Rm) | 600 - 750 N/mm² | ||
| Yield Strength (Rp0.2) | 300 - 400 N/mm² | ||
| Hardness (HBW) | 130 - 160 HB | ||
| Density | 8.10 g/cm³ |
05. Areas of Use
settings_suggest| High-Load Bearings & Bushings: Ideal for sliding bearings and bushings in heavy machinery operating under extreme pressure. | |
| Precision Gears & Worm Wheels: Designed for gear systems that require high wear resistance and dimensional stability. | |
| Engine & Valve Components: Perfect for valve guides and engine parts subject to high temperatures and mechanical stress. | |
| Automotive Transmission Parts: Widely used for synchronizer rings, shift forks, and wear pads in transmission systems. | |
| Hydraulic & Pneumatic Systems: Reliable for high-pressure pump components and control valves requiring precision sealing. | |
| Complex Machined Parts: The best choice for intricate parts needing both high strength and excellent machinability (CNC precision). | |
| Marine Hardware: Durable fittings and components that demand a balance of strength and corrosion resistance. |
06. Global Equivalent Grades
public| Region | Standard | Grade Definition | Notes |
|---|---|---|---|
| flag Europe | DIN EN 1982 | CC750S | |
| flag USA | ASTM / CDA | C86300 | |
| flag United Kingdom | BS | CZ135 |
07. Technical Resources
folder_open08. Standard Compliance
verified_userLong Notes
note_altCuZn37Mn3Al2PbSi-C: The Ultimate Solution for High-Performance Engineering
In the modern industrial landscape, components are pushed to their absolute mechanical limits. CuZn37Mn3Al2PbSi-C, manufactured with the metallurgical expertise of Çorum Bronz, is a high-performance complex brass alloy specifically designed to thrive where standard materials fail. By integrating manganese, aluminum, lead, and silicon, this alloy delivers a unique combination of extreme strength and precision machinability.
As a versatile and durable manganese-silicon bronze, CuZn37Mn3Al2PbSi-C is the preferred choice for engineers in the automotive, aerospace, and heavy machinery sectors who refuse to compromise on reliability.
Technical Excellence: Why CuZn37Mn3Al2PbSi-C?
The technical superiority of this alloy stems from its complex chemical composition, tailored to provide a multi-faceted defense against mechanical failure:
Silicon-Enhanced Wear Resistance: The addition of silicon (Si) significantly increases the hardness of the material, creating a surface that remains stable even under continuous, high-pressure friction.
Exceptional Machinability: Unlike many high-strength bronzes that are difficult to shape, the lead (Pb) content in this alloy ensures excellent chip formation, allowing for high-speed CNC machining and the creation of intricate geometries.
High Tensile Strength: Reinforced with manganese and aluminum, it maintains high load-bearing capacity, preventing deformation in critical structural joints.
Superior Fatigue Resistance: Designed to withstand cyclic loading, it is ideal for moving parts that undergo repetitive stress, such as synchronizer rings and gear selectors.
Technical Specifications & Performance Metrics
Çorum Bronz produces CuZn37Mn3Al2PbSi-C under strict quality control protocols to ensure every batch meets international industrial standards (e.g., EN 12163 / CW713R equivalent).
| Feature | Performance Specification |
| Material Classification | Manganese Silicon Special Brass |
| Machinability Rating | High (Excellent for CNC Precision) |
| Wear Resistance | Exceptional (High-Load Optimized) |
| Corrosion Stability | High (Resistant to oils and industrial fluids) |
| Thermal Stability | Maintains properties at elevated temperatures |
Critical Industrial Applications
This alloy is the engineering backbone for components that require a "zero-failure" performance:
Automotive Power Trains: The primary material for synchronizer rings, shift forks, and transmission bushings due to its smooth sliding and high durability.
Engine Components: Ideal for valve guides and high-stress bushings where thermal and mechanical resistance are mandatory.
Heavy Industry Hydraulics: Used for high-pressure pump parts, piston guides, and control valves that require a perfect surface finish for sealing.
Complex Gear Mechanisms: Perfect for worm wheels and precision gears where dimensional accuracy must be maintained over millions of cycles.
Aerospace Fittings: High-strength, machinable fasteners and bushings that must meet tight tolerances and high safety standards.
Quality Assurance by Çorum Bronz
At Çorum Bronz, we understand that our materials are the foundation of your engineering success. Our CuZn37Mn3Al2PbSi-C undergoes comprehensive chemical analysis and mechanical testing to ensure it meets the highest global standards. Our ISO-certified production facility in Çorum combines traditional casting wisdom with modern technology to deliver a product that is consistently reliable.
Available Formats & Global Supply
To support your production line, we offer this specialized alloy in various forms:
Precision-Extruded Rods (Round, Hexagonal, Profiled)
High-Quality Bronze Flat Bars
Custom Hollow Bars and Bushings
Tailored Castings based on technical drawings
Empower your production with the precision of CuZn37Mn3Al2PbSi-C.
Trust Çorum Bronz for high-strength, highly machinable, and long-lasting material solutions.
Contact us today for CuZn37Mn3Al2PbSi-C technical data sheets, current stock levels, and global export pricing.