CW719R Naval Brass Pipe is a copper alloy piping material designed for marine and industrial applications requiring reliable structural performance and corrosion resistance. It is manufactured from brass with a controlled level of lead, which not only allows for better component manufacturing, but is also resistant to corrosion in seawater and brackish (salt) water. The combination of this balance renders CW719R ideal for piping sections, valves, fittings, marine hardware and other engineered components under extreme operating conditions. Pipes could be provided in various sizes, wall thickness and length as per the requirements of the project and installation. They are also applicable to applications where dimensional requirements and material traceability are a critical factor. USA Piping Solution produces and distributes Naval Brass Pipes, also known as CW719R pipes, for marine, offshore, valve and industrial use throughout the world.
Specifications of Cw719r Naval Brass Pipe
| Specification Field | Detail / Parameter |
|---|---|
| Material / Grade | CW719R / CuZn37Pb1Sn1 (Low Lead Naval Brass) |
| Material Code / Designation | EN Symbol: CuZn37Pb1Sn1 | EN Number: CW719R |
| Equivalent Standards | ISO 426-2 (CuZn37Pb1Sn1) | UNS/ASTM C46400 / C48200 (Low Lead Class) | DIN 2.0372 | BS CZ112 (Modified) | JIS C4640 |
| Product Type | Seamless Pipe & Tube (Also available as Round Bar, Hex, Plate, Sheet) |
| Alloy Type | Leaded Tin-Inhibited Naval Brass (Alpha-Beta Brass) |
| Outer Diameter (OD) | 6.0 mm to 219.10 mm (1/8" Nominal to 8" NPS) |
| Wall Thickness | 0.8 mm to 20.0 mm (SCH 10S to SCH 80S, BWG Gauges) |
| Length | Up to 6,000 mm (Custom cut-to-length / precision sawing available) |
| Shape | Round Pipe / Tube |
| Technique / Process | Hot Extruded / Cold Drawn Seamless |
| Delivery Condition | Annealed (Soft / O60), Half Hard (H080), Hard (H110) |
| Density | 8.41 g/cm³ (0.304 lbs/in³) |
| Melting Point | 885 – 900 °C (1625 – 1652 °F) |
| Tensile Strength ($R_m$) |
Annealed (Soft): 360 – 440 MPa
Half-Hard: 410 – 500 MPa Hard: 490 MPa |
| Yield Strength ($R_{p0.2}$) |
Annealed (Soft): 160 MPa
Half-Hard: 250 MPa Hard: 350 MPa |
| Elongation ($A_5$) |
Annealed (Soft): 30%
Half-Hard: 18% Hard: 10% |
| Hardness (HB) |
Annealed (Soft): 90 – 120 HB
Half-Hard: 110 – 140 HB Hard: 140 – 170 HB |
| Corrosion Resistance | High resistance to seawater dezincification, brackish water, and marine impingement attack |
| Machinability | Moderate (~50% relative to C36000 Free-Cutting Brass) |
| Hot Working Temp Range | 650 °C – 750 °C (1200 °F – 1380 °F) |
| Color & Finish | Golden Brass / Mill Finish (Clean, Bright Drawn) |
| Primary Applications | Marine hardware, seawater cooling pipework, valve stems, pump shafts, offshore fluid transport, heat exchanger shells |
Applications and industrial Uses of Cw719r Naval Brass Pipe
- Marine Piping Systems
- Shipbuilding Components
- Offshore Fluid Handling Systems
- Marine Valves and Fittings
- Seawater Cooling Systems
- Pump and Valve Assemblies
- Industrial Fluid Conveyance Systems
- Marine Hardware Components
Frequently Asked Questions
What is CW719R Naval Brass Pipe?
CW719R Naval Brass Pipe is a copper-zinc-tin alloy pipe designed for marine and industrial applications requiring corrosion resistance and strength.
What is CW719R Naval Brass used for?
It is used for marine piping, valves, fittings, shipbuilding components, and offshore equipment.
Is CW719R Naval Brass suitable for seawater applications?
Yes, CW719R offers good resistance to seawater corrosion and is suitable for marine service.
Is CW719R Naval Brass resistant to dezincification?
Yes, its tin content improves resistance to dezincification in seawater and brackish-water environments.
What is the EN standard for CW719R Naval Brass?
CW719R is an EN 12449 copper alloy designation for CuZn39Sn1.
Is CW719R available as seamless pipe?
Yes, CW719R can be supplied as seamless pipe and tube in various sizes and wall thicknesses.