CZ114 Naval Brass Pipe is a high-tensile brass, often called manganese bronze. The alloy is used for parts where tensile strength and wear resistance are required. The designation of the alloy is CW721R according to European Standards. This alloy mainly consists of about 58% copper, together with other alloying elements such as manganese, aluminium, iron, tin and lead. The alloy has better tensile strength, load-bearing capacity and machining properties compared with ordinary naval brass alloys. The application areas of CZ114 include valve stems, pump shafts, marine hardware, wear sleeves and high tensile bolts. It is often termed naval brass but in reality it is high-tensile brass. Amardeep Steel manufactures and supplies CZ114 tubes and hollow bars in India to meet industrial requirements.
Technical Data
Specifications of Cz114 Naval Brass Pipe
| Parameter | Specification Details |
|---|---|
|
Material Designation |
CZ114 High Tensile Brass / Manganese Bronze (CW721R / CuZn40Mn1Pb1AlFeSn) |
|
Governing Standards |
BS 2874 CZ114; EN 12164 CW721R (rod); EN 12168 CW721R (hollow rod); custom tube to drawing |
|
Product Forms |
Extruded seamless tube, heavy-wall hollow bar, custom pipe to drawing |
|
Outside Diameter (OD) |
20 mm to 120 mm |
|
Inside Diameter (ID) |
10 mm to 80 mm |
|
Length |
Standard random lengths up to 4 meters, or custom cut-to-length pieces |
|
Condition / Temper |
As Extruded / As Manufactured (Temper M) |
|
Testing Capability |
Chemical analysis, tensile, elongation, hardness, dimensional inspection, visual testing |
|
Certifications |
EN 10204 3.1 inspection certificate; 3.2 third-party inspection (TUV, DNV, BV, LRS) on request |
Chemical Compositions of Cz114 Naval Brass Pipe
| Element (%) | BS 2874 CZ114 Standard | EN 12164 CW721R Standard |
|---|---|---|
|
Copper (Cu) |
56.5 to 58.5 |
57.0 to 59.0 |
|
Manganese (Mn) |
0.5 to 2.0 |
0.8 to 1.8 |
|
Aluminium (Al) |
1.5 max |
0.3 to 1.3 |
|
Iron (Fe) |
0.3 to 1.0 |
0.2 to 1.2 |
|
Lead (Pb) |
0.5 to 1.5 |
0.8 to 1.6 |
|
Tin (Sn) |
0.2 to 0.8 |
0.2 to 1.0 |
|
Nickel (Ni) |
Not specified |
0.3 max |
|
Other Impurities |
0.5 max |
0.3 max |
|
Zinc (Zn) |
Remainder |
Remainder |
Mechanical Properties of Cz114 Naval Brass Pipe
| Diameter or Wall Thickness (mm) | Tensile Strength, min (MPa) | 0.2% Proof Strength, min (MPa) | Elongation in 50mm, min (%) |
|---|---|---|---|
|
Up to 18 mm |
460 |
270 |
12 |
|
Over 18 to 40 mm |
440 |
250 |
15 |
|
Over 40 to 75 mm |
440 |
210 |
18 |
Cz114 Naval Brass Pipe Physical Properties
| Physical / Fabrication Property | SI Metric Units | Notes / Imperial Value |
|---|---|---|
|
Density |
About 8.3 to 8.4 g/cm³ |
0.312 lb/in³ |
|
Melting Point |
~865°C |
~1589°F |
|
Thermal Conductivity |
88.3 W/m·K |
51 Btu/ft·h·°F |
|
Electrical Resistivity |
0.090 µΩ·m |
~19% IACS conductivity |
|
Modulus of Elasticity (Tension) |
96.5 GPa |
14,000 ksi |
|
Hot Working Range |
625°C to 760°C |
Rated Good to Excellent |
|
Cold Forming |
Poor |
Not recommended for cold bending or flaring |
|
Machinability Rating |
~30% |
Reference: Free-Cutting Brass C36000 = 100% |
|
Soldering & Brazing |
Excellent |
Suitable for conventional joining methods |
Equivalent Grades of Cz114 Naval Brass Pipe
| Standard Organization | Designation / Material Code |
|---|---|
|
BS (British Standard) |
BS 2874 CZ114 / BS 2872 CZ114 |
|
EN (European Norm) |
CuZn40Mn1Pb1AlFeSn / Material Number CW721R |
|
UNS / ASTM (Nearest Match) |
UNS C67500 Manganese Bronze (Note: Near match, not identical) |
Size Chart of Cz114 Naval Brass Pipe
| Product Form | Available Size Specifications |
|---|---|
|
Hollow Rods |
Min Bore Size: 20 mm | Max OD: 100 mm |
|
Round Rods / Rods |
6 mm to 130 mm |
|
Hex |
5 mm to 60 mm |
|
Square |
4 mm to 60 mm |
|
Flat |
Min Thickness: 5 mm | Max Width: 120 mm |
|
Profiles / Sections |
As per Customer Drawing |
|
Billets |
Up to 200 mm |
|
Ingots |
As per Specification |
Applications and Industrial Uses of Cz114 Naval Brass Pipe
- Marine Valve Stems
- Heavy-Duty Pump Shafts
- Marine Propeller Shaft Components
- Shipbuilding Hardware and Fittings
- Industrial Pump Components
- Wear-Resistant Sleeves and Bushings
- High-Strength Marine Fasteners
- Hydraulic Valve Components
Frequently Asked Questions
1. What is CZ114 Naval Brass Pipe?
CZ114 is a high-tensile brass (manganese bronze) alloy known for its high strength, wear resistance, and good machinability.
2. What is the difference between CZ114 and C46400 Naval Brass?
CZ114 offers higher mechanical strength and wear resistance, while C46400 provides good seawater corrosion resistance and is classified as traditional naval brass.
3. Is CZ114 considered naval brass or high-tensile brass?
CZ114 is technically classified as high-tensile brass or manganese bronze, although it is sometimes marketed as naval brass.
4. Is CZ114 Brass resistant to seawater corrosion?
CZ114 resists seawater reasonably well, but less than tin naval brass. It can also dezincify in warm, stagnant seawater.
5. What is the difference between CZ114 and CW721R?
There is no material difference. CZ114 is the British designation, while CW721R is its European material number.
6. Is CZ114 Brass suitable for marine applications?
Yes, CZ114 is used in marine equipment, valve components, pump shafts, heavy-duty fittings, and other applications requiring high strength and wear resistance.
7. What is the tensile strength of CZ114?
CZ114 has a minimum tensile strength of approximately 440–460 MPa for bar products, depending on size.
8. What is the UNS equivalent of CZ114?
The nearest UNS equivalent is C67500 manganese bronze. It is a close match but not an exact equivalent.
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