C36300 low leaded brass tubes are copper-zinc-lead alloy products that have been manufactured with controlled amounts of lead and phosphorus, and contain 61-63% copper. This composition results in an alloy that is well suited for machining, because it is free-machining and good for forging. C36300 has a machinability rating of about 80, allowing it to be used to manufacture parts that require tight tolerances and good plating properties. The phosphorus gives enhanced dezincification resistance to water. C36300 brass is frequently produced in tube and hollow bar shapes, and is used to produce valve parts, faucets, plumbing fittings and precision-machined parts. Amardeep Steel supplies C36300 brass tubes and hollow bars with material test certificates and customized dimensions.
Technical Data
Specifications of C36300 Low Leaded Brass Tubes
| Parameter | Specification |
|---|---|
|
Material |
UNS C36300 low leaded free machining brass (phosphorus added) |
|
Standards |
Chemistry to UNS C36300; rod to ASTM B16; hollow bar and tube to drawing |
|
Forms |
Extruded hollow bar, round, hex and square hollow, tube to drawing |
|
Outside diameter |
30 mm to 120 mm |
|
Inside diameter |
20 mm to 80 mm |
|
Length |
Up to 4 m, or cut to length |
|
Condition |
As extruded or cold drawn (H02 half hard) |
|
Tests |
Chemical analysis with lead and phosphorus reported, hardness, dimensional; tensile on request |
|
Documents |
EN 10204 3.1 stating C36300 and actual lead; third party on request |
Chemical Compositions of C36300 Low Leaded Brass Tubes
| Element | UNS C36300 (%) |
|---|---|
|
Copper (Cu) |
61.0 to 63.0 |
|
Lead (Pb) |
0.25 to 0.70 |
|
Phosphorus (P) |
0.04 to 0.15 |
|
Iron (Fe), max |
0.15 |
|
Other impurities, max |
0.50 |
|
Zinc (Zn) |
Remainder |
Physical Properties of C36300 Low Leaded Brass Tubes
| Property | Value |
|---|---|
|
Density |
About 8.5 g/cm³ |
|
Melting range |
About 885 to 900°C |
|
Electrical conductivity |
About 26% IACS |
|
Thermal conductivity |
About 115 W/m·K |
|
Machinability |
About 80 (C36000 = 100) |
|
Hot forgeability |
Good |
|
Thread rolling / plating |
Excellent |
|
Soldering / brazing |
Excellent / good |
|
Cold forming |
Limited (duplex brass with lead) |
C36300 Low Leaded Brass Tubes Mechanical Properties
| Mechanical Property | Value (Metric / US) |
|---|---|
|
Tensile Strength |
About 448 MPa (65 ksi) |
|
Yield Strength |
About 310 MPa (45 ksi) |
|
Elongation |
About 20% |
|
Hardness |
About 75 HRB |
Equivalent Grades of C36300 Low Leaded Brass Tubes
| System | Designation |
|---|---|
|
UNS |
C36300 |
|
EN (nearest) |
CuZn37Pb0.5, CW604N (similar copper and lead, no phosphorus) |
|
Related UNS |
C36000 (free cutting, about 3% lead); C33000 (low leaded tube brass); C27450 (low lead) |
|
JIS / BS / ISO |
No direct equivalent (do not list CuZn37 or CW508L, which are unleaded) |
Applications and Industrial Uses of C36300 Low Leaded Brass Tubes
- Faucet stems and valve seats
- Plumbing valve components
- Water meter fittings and components
- Brass compression fittings
- Precision-machined screw machine parts
- Threaded pipe connectors and adapters
- Sanitary fitting components
- Industrial valve bodies and trim components
Frequently Asked Questions
1. What are C36300 low lead brass tubes?
C36300 brass tubes are copper zinc alloy products designed for free machining, with phosphorus for better dezincification resistance.
2. What is the lead content in C36300 brass?
C36300 brass contains approximately 0.25 to 0.7% lead.
3. What are the applications of C36300 low lead brass tubes?
They are used in faucet stems, valve seats, plumbing fittings, water meter components, and precision machined parts.
4. Is C36300 brass resistant to dezincification?
It is more resistant than plain leaded brass because of its phosphorus, but it is not a certified DZR grade.
5. What is the difference between C36300 and C36000 brass?
C36300 contains approximately 0.25 to 0.7% lead, while C36000 typically contains around 2.5 to 3.7% lead and offers higher machinability.
6. Is C36300 brass suitable for potable water applications?
No, C36300 contains more lead than the 0.25% limit under NSF/ANSI 372 for lead free plumbing products.
7. What is the EN equivalent of C36300?
There is no exact EN equivalent. The nearest grade is CuZn37Pb0.5 (CW604N), which does not contain the same phosphorus addition.
8. What is the machinability of C36300?
C36300 has a machinability rating of approximately 80, compared with 100 for free cutting brass C36000.
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