.webp "C35330 DZR Brass Hollow Bars (UNS C35330)")
If your drawing calls out UNS C35330, you are looking at a leaded brass with a small addition of arsenic, and the arsenic is there to slow dezincification. That is what DZR stands for. It is why C35330 DZR brass hollow bars end up as tap bodies, valve parts and fittings that are machined or hot forged and then spend their lives in water. It is still a lead grade, so it is the wrong choice when lead is restricted.
Amardeep Steel Centre supplies C35330 brass hollow bars from Mumbai, to export buyers and to workshops in India. Send the outside diameter, bore, length, temper and quantity on the enquiry page and you get back what can be shipped and when.
Technical Data
C35330 Hollow Bar Specifications at a Glance
| Parameter | Detail |
|---|---|
|
Grade |
UNS C35330, dezincification resistant (DZR) leaded arsenical brass |
|
Nearest EN match |
CW602N, CuZn36Pb2As |
|
Standards |
ASTM B453 for rod, bar and shapes, B124 for forging rod and bar, and B283 for die forgings, as listed for the grade |
|
Product forms |
Hollow bar and hollow rod supplied against your drawing |
|
Size range |
Outside diameter, bore and wall to your drawing. Send the sizes and we confirm. |
|
Length |
Random, fixed or cut to length |
|
Tempers |
As named on your drawing, confirmed at quotation |
|
Tolerance |
As per the standard on your order, or as agreed |
|
Lead and arsenic |
Lead 1.5 to 3.5 per cent, arsenic 0.02 to 0.25 per cent. Leaded, not lead free. |
|
Testing and certificates |
Mill test certificate, type confirmed at quotation |
Chemical Composition of C35330 DZR Brass Hollow Bars
| Element | UNS C35330 | Nominal |
|---|---|---|
|
Copper (Cu) |
59.5 to 64.0 |
About 62 |
|
Zinc (Zn) |
Remainder |
About 35 to 36 |
|
Lead (Pb) |
1.5 to 3.5 |
About 2 |
|
Arsenic (As) |
0.02 to 0.25 |
About 0.1 |
|
Iron, tin, nickel and other elements |
Limited by the standard on your order |
None added |
Physical Properties of C35330 in SI Units
| Property | SI value | Imperial value |
|---|---|---|
|
Density |
About 8.43 g/cm3 at 20 degrees Celsius |
0.305 lb/in3 |
|
Melting range |
About 885 to 904 degrees Celsius |
1625 to 1660 F |
|
Coefficient of thermal expansion |
About 20.3 micrometres per metre per kelvin, 20 to 300 degrees Celsius |
11.3 millionths per F |
|
Thermal conductivity |
About 117 W/m K at 20 degrees Celsius |
68 Btu per foot per hour per F |
|
Electrical conductivity |
About 26 per cent IACS |
26 per cent IACS |
|
Modulus of elasticity |
About 104 GPa |
15100 ksi |
Application of C35330 DZR Brass Hollow Bars
- Tap and valve bodies: Bodies and stems machined or hot forged from hollow stock, with the bore already through.
- Stopcocks and plumbing fittings: Stopcock bodies, pipe fittings and plumbers' brass goods for water lines.
- Flare fittings and couplings: Parts that are turned, threaded and finished on automatic machines.
- Faucet stems and seats: Small turned parts that sit in the water path.
- Builders hardware: Handles, pulls and hinges that are machined and then plated or polished.
- Fasteners and instrument parts: Nuts, screws, rivets and small precision parts.
If the duty involves seawater, this is the wrong page.
Frequently Asked Questions
1. What are C35330 DZR brass hollow bars?
C35330 is a UNS designation for a dezincification resistant leaded brass with about 62 per cent copper, 1.5 to 3.5 per cent lead and a small arsenic addition. Hollow bar is stock with a bore through it, used for machined and hot forged valve, tap and fitting parts.
2. What does DZR mean?
DZR stands for dezincification resistant. In ordinary brass the zinc can leach out in some waters, leaving a weak, porous copper structure. The small arsenic addition in C35330 slows that attack. It resists it better, but it does not make the brass immune, so tell us the water and the service.
3. Is C35330 lead free?
No. C35330 carries lead, which gives it good machining, and it is not a lead free brass. Drinking water rules in many regions restrict leaded brass. Check the rule for the finished part, and ask us for a lead free grade if it applies. We make no compliance claim.
4. What is the difference between C35330 and C36000?
C36000 is free cutting brass with more lead and no arsenic, so it machines faster but is not dezincification resistant. C35330 gives up a little machinability for resistance to dezincification. Choose C35330 where water is involved and C36000 for dry service.
5. Is C35330 the same as CW602N or CW511L?
C35330 is the UNS grade and CW602N, CuZn36Pb2As, is its nearest EN match, so check the limits on your drawing before you substitute. CW511L is a different, low lead grade and not an equivalent. Name the grade on your order.
6. Which standards cover C35330 hollow bar?
ASTM B453 covers leaded brass rod, bar and shapes, and ASTM B124 covers forging rod and bar. Name the standard, temper and tolerance on your order so tests match your drawing, and we confirm what applies to hollow bar.
Looking to Enquire or Place an Order?
Tell Amardeep Steel Centre the size, the temper and the quantity, and what the part has to do. You get a price, a delivery date and a straight view on whether C35330 is the right brass for the job, and if it is not, we say so. You can attach your drawing to the enquiry.
Get Enquiry