CuZn37Pb1Sn1 naval brass is a copper zinc alloy with about 60 per cent copper and 38 per cent zinc, plus 0.5 to 1.0 per cent tin and 0.4 to 1.0 per cent lead. The EN number is CW714R and the nearest UNS grade is C48200. Tin gives dezincification resistance in sea water and lead gives free machining, so the alloy is also called medium leaded naval brass and is sold as naval brass rod and bar.
As a naval brass supplier in India, Amardeep Steel Centre ships CuZn37Pb1Sn1 naval brass rod and bar from Mumbai, in round, hex and square, with hollow rod on request. Tell us the shape, size, temper and quantity through ourenquiry page and we will quote the right bar.
Technical Data
CuZn37Pb1Sn1 Naval Brass Specification
| Parameter | Detail |
|---|---|
|
Grade |
CuZn37Pb1Sn1, medium leaded naval brass |
|
EN designation |
CW714R |
|
UNS equivalent |
C48200, nearest match |
|
Standards |
EN 12164 for rod for free machining purposes, ASTM B21 for naval brass rod, bar and shapes, ASTM B124 for forging rod, bar and shapes |
|
Product forms |
Round, hex and square bar, with hollow rod on request |
|
Size range |
On enquiry, against your drawing |
|
Length |
Random, fixed or cut to length |
|
Tempers |
EN tempers R370 and R410, others to your drawing |
|
Tolerance |
As per EN 12164 or the class on your drawing |
|
Testing and certificates |
Mill test certificate, with EN 10204 3.1 on request |
Chemical Composition of CuZn37Pb1Sn1 Naval Brass
| Cu | Fe | Pb | Sn | Zn | |
|---|---|---|---|---|---|
|
Min/Max |
59.0 - 62.0 |
0.1 |
0.40-1.0 |
0.5 - 1.0 |
Rem |
|
Nominals |
60.5000 |
0.7 |
0.8 |
38.0 |
Mechanical properties of CuZn37Pb1Sn1
| Temper | Tensile MPa min | 0.2 per cent proof MPa min | Elongation A per cent min | Elongation A100 per cent min | Hardness HB min |
|---|---|---|---|---|---|
|
R370 |
370 |
220 |
22 |
Not given |
110 |
|
R410 |
410 |
250 |
18 |
12 |
125 |
Equivalent grades for CuZn37Pb1Sn1
| System | Designation | Note |
|---|---|---|
|
EN chemical name |
CuZn37Pb1Sn1 |
The name used in the page title |
|
EN numeric |
CW714R |
Rod for free machining, EN 12164 |
|
UNS |
C48200 |
Nearest match, copper limit 59.0 to 62.0 against 59.0 to 61.0 in EN |
|
ASTM, rod, bar and shapes |
B21 |
Naval brass rod, bar and shapes |
|
ASTM, forging stock |
B124 |
Forging rod, bar and shapes |
|
ASTM, die forgings |
B283 |
Hot pressed die forgings |
Application of CuZn37Pb1Sn1 Naval Brass
Each use comes down to the same two points, sea water resistance and good machining.
- Marine hardware. Fittings and fixings that sit in or near sea water and need tin for dezincification resistance.
- Valve stems. Turned, threaded and finished on a lathe, and strong enough to carry load.
- Screw machine products. Parts made in volume where chip breaking keeps the machine running.
- Fasteners. Bolts, nuts and studs for corrosion resistant service, including marine use.
- Pump and valve components. Bushes, spindles and bodies that are machined from bar and forged from rod.
For other brass bar, see ourbrass round bars to IS 319 1989 Gr.1, and for the full list, seebars, rods and wires.
Tell us the shape, size and temper, andget a quote for CuZn37Pb1Sn1 naval brass.
Frequently Asked Questions
What is CuZn37Pb1Sn1 naval brass?
CuZn37Pb1Sn1 is a medium leaded naval brass containing approximately 60% copper, 38% zinc, 0.5–1.0% tin and 0.4–1.0% lead. It offers seawater resistance and machinability.
Is CuZn37Pb1Sn1 the same as CW714R and UNS C48200?
CuZn37Pb1Sn1 is the EN chemical name for CW714R naval brass, while UNS C48200 naval brass is the nearest American grade. Their composition limits differ, so specify the required standard.
What is the difference between naval brass and admiralty brass?
Admiralty brass contains approximately 70% copper and is used in condenser tubes. Naval brass contains around 60% copper, offering greater strength for marine fittings and hardware.
Why does naval brass contain tin and lead?
Tin improves seawater resistance and slows dezincification. Lead enhances machinability by breaking chips during cutting, making CuZn37Pb1Sn1 naval brass suitable for precision marine components.
How machinable is CuZn37Pb1Sn1?
CuZn37Pb1Sn1 offers moderate machinability, generally below free cutting brass C36000. Its machinability, strength and seawater resistance make it suitable for naval brass rod and round bar.
Is CuZn37Pb1Sn1 suitable for seawater service?
Yes, CuZn37Pb1Sn1 is used for marine hardware, valve stems and fittings exposed to seawater. Polluted water, sulphide exposure and high flow velocities may require copper nickel alloys.
Enquire About CuZn37Pb1Sn1 Naval Brass
Send us your drawing, shape, size, temper and quantity, and we will respond with availability, minimum order quantity and delivery time for your CuZn37Pb1Sn1 naval brass rod and bar. You can attach a drawing to theenquiry page.
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