The brass tubing material C33000 (CDA 330) is a copper-zinc alloy with controlled lead for drawn, flared, bent and machined tubing parts. It is composed of 65.0-68.0% copper, the remaining component being zinc, and lead is usually 0.25-0.7%. C33000 is Seamless Brass Tubing designated by ASTM B135 and is available in a variety of tempers for Drawing, Machining and Fabrication. The material is not lead-free, but low-leaded brass, which must be evaluated as such for potable water use and product certification. C27450 Low Lead Brass Tubes and C27400 63/37 Lead Free Brass Tubes are comparable options that can be considered when buying lower lead tubes. USA Piping Solution offers brass tubing for industrial material needs and different industries according to their requirements.
Specifications of C33000 Low Lead Brass Tubes
| Standard Body | Specification Number |
|---|---|
| UNS / CDA | UNS C33000 / CDA 330 |
| ASTM Standard | ASTM B135 / B135M |
| ASME Standard | ASME SB135 |
| Federal Specification | WW-T-791 |
| Military Specification | MIL-T-46072 |
| SAE Specifications | SAE J461 / J463 |
| AMS Specifications | AMS 4554 / AMS 4555 |
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Applications and Industrial Uses of C33000 Low Lead Brass Tubes
- Pump Components
- Hydraulic Cylinder Components
- Machined Sleeves and Bushings
- Precision-Turned Components
- Plumbing Hardware and Accessories
- Electrical Connector Components
- Mechanical Spacers and Collars
- Tubular Components for Industrial Machinery
Frequently Asked Questions
What is a C33000 brass tube?
C33000 brass tube is a low-leaded yellow brass tube alloy made primarily of copper and zinc, with a controlled lead content to improve machinability and fabrication.
Is C33000 brass tube lead-free and safe for drinking water?
No. C33000 contains lead and is not lead-free. Its suitability for potable water is restricted by applicable US lead-free plumbing requirements.
What is the difference between C33000 and C33200 brass tubes?
Both are yellow brass tube alloys. C33000 has 0.25 to 0.7% lead; C33200 has 1.5 to 2.5% lead, which improves machinability.
What tempers are C33000 brass tubes available in?
C33000 brass tubes may be supplied in H04 hard temper and annealed light-grain tempers such as OS025 and OS050, subject to availability and the applicable specification.
Can C33000 brass tubes be welded?
Welding C33000 is generally difficult because lead can increase the risk of cracking and weld defects. Soldering or brazing may be preferred, depending on the application.
What is the machinability rating of C33000 brass?
C33000 has a commonly cited machinability rating of approximately 60 when free-cutting brass C36000 is used as the 100 reference.
ASTM B135 seamless brass tube, supplied in H04, OS025 and OS050 tempers.
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