CZ111 Admiralty Brass Hollow Bars is a kind of hollow rods made up of Admiralty brass, which is used to produce machine parts for marine applications, condenser and heat exchanger use. The copper-zinc alloy has the EN designation CW706R (CuZn28Sn1As). It has a maximum lead content of 0.07%. This brass is both ductile and corrosion-resistant but it is not free machinable. It offers excellent resistance to dezincification and thus can be applied in applications involving contact with water. Tin added into this alloy serves to offer protection from seawater erosion. Hollow bars are high wall thickness bar stocks intended for machining purposes and not tubing. USA Piping Solution supplies CZ111 hollow rods to your sizes. Send the OD, bore, length and quantity to request a quote.
Specifications of Cz111 Brass Hollow Rods
|
Parameter |
Specification & Commercial Details |
|---|---|
|
Product Name |
CZ111 Brass Hollow Rods / Admiralty Brass Bored Stock |
|
Material Designations |
CZ111 (BS Legacy) | CW706R (EN Numeric) | CuZn28Sn1As (EN Chemical) |
|
Nearest UNS Standard |
UNS C44300 (ASTM B111 / B111M seamless tube equivalent) |
|
Material Class |
Arsenical Admiralty Brass (Single-phase Alpha Brass) |
|
Governing Standards (Tube Reference) |
BS 2871 Part 3 (CZ111 copper alloy heat-exchanger tubes) ASTM B111 / B111M (C44300 seamless condenser tubes) EN 12451 (CW706R seamless tubes) |
|
Manufacturing Standards (Hollow Rod) |
Manufactured as extruded, cold-drawn, or mechanically bored stock supplied to mill or customer specification |
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Corrosion Protection |
Arsenic-inhibited against dezincification; tin-enhanced for resistance to sea-water impingement |
|
Product Forms |
Round Hollow Rods, Heavy-Wall Bored Stock, Custom Turning Billets |
|
Manufacturing Processes |
Hot Extrusion, Cold Drawing, Mechanical Gun-Drilling / Boring |
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Supply Conditions / Tempers |
As-Extruded, As-Bored, Annealed (O61), or Light Drawn |
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Dimensional Scope |
Outside Diameter (OD): Available in standard mill extruded and bored ranges Inside Diameter (ID / Bore): Machined/extruded to required wall thickness |
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Length Options |
Standard random mill lengths (3 m) or cut-to-length billets |
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Surface Finish |
Smooth Machined, As-Drawn, Bright Turned, or Clean Extruded |
|
Primary Applications |
Marine valves, pump sleeves, heat-exchanger components, sea-water strainers, thermowells, and process equipment fittings |
|
Compliance & Regulations |
Low-Lead Level: Contains 0.07% max lead Potable Water Position: Raw rod is low lead; certified component status requires NSF/ANSI 61 & 372 testing |
|
Quality & Documentation |
EN 10204 3.1 Material Test Certificate (MTC), Heat Traceability, Spectrographic Analysis Report, Dimensional Inspection Sheet |
Applications and Industrial Uses of Cz111 Brass Hollow Rods
- Marine Equipment Components
- Heat Exchanger Components
- Condenser Components
- Shipbuilding Fittings
- Seawater Cooling System Components
- Pump Components
- Valve Components
- Precision-Machined Industrial Parts
Frequently Asked Questions
1. What are CZ111 brass hollow rods?
CZ111 brass hollow rods are admiralty brass bored bars made from a copper-zinc alloy containing tin and arsenic for improved corrosion resistance in water-service applications.
2. What is the difference between CZ111 and C44300 brass?
CZ111 is a British Standard designation, while C44300 is a US UNS designation for a comparable arsenical admiralty brass alloy. Exact equivalence depends on the applicable material specification.
3. Is CZ111 brass suitable for marine applications?
Yes. CZ111 brass is used in marine equipment, condensers, heat exchangers, and cooling-system components because of its corrosion resistance in suitable water environments.
4. Is CZ111 brass resistant to seawater corrosion?
CZ111 offers resistance to dezincification and can perform in suitable seawater-service conditions. However, resistance depends on water chemistry, flow velocity, temperature, and operating conditions.
5. What is the difference between CZ111 admiralty brass and naval brass?
CZ111 admiralty brass typically contains around 70% copper with tin and arsenic for corrosion resistance. Naval brass generally contains around 60% copper and 1% tin, with the balance zinc and, in some grades, lead.