Top Cupronickel Pipes, Fittings and Copper Alloy Manufacturer & Exporter
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Top Cupronickel Pipes, Fittings and Copper Alloy Manufacturer & Exporter
• ASTM B111 C44300 • CuZn28Sn1 • CZ111
•
Admiralty Brass Tubes are specialized copper-zinc-tin alloy tubes engineered for applications demanding exceptional corrosion resistance, particularly against dezincification in harsh marine and industrial environments.
Composed typically of 70-73% copper, 0.9-1.2% tin, and the remainder zinc with trace elements such as arsenic and iron, Admiralty Brass offers a unique balance of mechanical strength, thermal conductivity, and long-term durability in sea water and chemical conditions.
At Cunimet Alloy International, we manufacture high-grade Admiralty Brass Tubes complying strictly with international standards such as ASTM B111, BS 2871, and DIN 1785. Our tubes serve industries in India and across the globe, especially in heat exchangers, condensers, oil well pumps, and steam systems.
Produced with seamless manufacturing methods and precise quality control, these tubes deliver reliable performance and lifecycle cost savings. To explore our available sizes, grades, and to get a tailored quotation, please reach out to our team.
| Parameter | Range / Description |
|---|---|
| Outside Diameter (OD) | 6 mm to 150 mm |
| Wall Thickness | 0.5 mm to 10 mm |
| Length | Standard lengths up to 6 meters; Custom lengths available |
| Maximum Operating Temperature | Up to 200 °C |
| Material Grades | ASTM B111 C44300 CuZn28Sn1 (CZ111), BS 2871 CZ111 |
| Manufacturing Method | Seamless Cold Drawn / Hot Finished Tubes |
| Surface Finish | Polished, Annealed, Mill Finish |
| Shapes Available | Round, Square, Rectangular |
| Pressure Rating | Suitable for pressures up to 25 bar (dependent on size) |
| Standard | Grade / Code | Description |
|---|---|---|
| ASTM B111 | C44300 | Standard Specification for Admiralty Brass Seamless Tubes |
| ASME SB111 | C44300 | Boiler and Pressure Vessel Code Equivalent |
| BS 2871 Part 3 | CZ111 | British Standard for Copper Alloy Tubes |
| DIN 1785 | CuZn28Sn1 | German Industrial Standard |
| JIS H3300 | C4430 | Japanese Industrial Standard |
| ISO | CuZn28Sn1 | International Standard |
| IS 1545 (India) | CuZn29Sn1As | Indian Standard |
| Type | Description | Typical Usage |
|---|---|---|
| Standard Admiralty Brass Tube | Seamless tube with 70%+ copper and tin alloy | Heat exchangers, condensers, and marine applications |
| Finned Admiralty Brass Tube | Tubes with external fins for enhanced heat transfer | High-efficiency heat exchangers |
| Rectangular Admiralty Brass Tube | Formed rectangular cross-section tubes | Instruments, specialized condenser designs |
| Thin-Walled Admiralty Brass Tube | Tubes with reduced thickness for lightweight applications | Oil coolers, evaporators |
| Polished Admiralty Brass Tube | Bright finish enhanced for corrosion and aesthetic needs | Decorative and exposed heat exchanger parts |
| Property / Alloy Type | Typical Composition % | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HV) | Grain Size (mm) | Uses |
|---|---|---|---|---|---|---|---|
| Admiralty Brass C44300 | Cu: 70.0-73.0, Sn: 0.9-1.2, As: 0.02-0.06, Fe: ≤0.06, Pb: ≤0.07, Zn: remainder | 310–380 | 180–220 | 45+ | 85–105 | 0.010-0.045 | Heat exchangers, condensers, marine tubes |
For full certification and detailed mechanical testing data, contact us.
We combine over a decade of specialized expertise in Admiralty Brass Tube manufacturing with advanced seamless production technology. Our tubes undergo stringent quality testing to meet ASTM, BS, DIN, and other international standards. We provide global clients with tailored solutions, prompt delivery, and technical support.
Choosing Cunimet Alloy International means partnering with a reputed manufacturer focused on durable, high-performance brass tubes ideal for demanding industrial and marine environments.
Ensure peace of mind with premium-quality Admiralty Brass Tubes engineered for longevity and performance. Whether you require standard or custom specifications, Cunimet Alloy International delivers precision products at competitive rates. Contact us today for a detailed quotation and personalized support.
Brass Tees
Brass Coupling
Brass Reducer
Brass Elbow
• Photos and videos from our factory unit located in Umbergaon, Gujarat, India •
Contact us for Brass Fittings and various types of Aluminum Brass, Copper Aluminum Bronze & Phosphorus Bronze products.
We are one of the prominent manufacturer and supplier of cupronickel and copper alloy products in India. We have achieved this by consistently upholding our highest ethical standards, integrity, and values in the market from the last two decades.
