The C36300 brass tubes are manufactured from a copper-zinc alloy that was developed to produce turned, drilled, and threaded products. The composition of the alloy includes 61.0-63.0% of copper, 0.25-0.7% of lead, and a trace amount of phosphorus. This material is appropriate to produce valve parts, pump parts, pipe fittings, and other precision machined parts. The C36300 rod, bars, wires, and shapes are regulated by the ASTM B981/B981M. Therefore, hollow bars are delivered according to the mill specifications and not standard seamless tube. USA Piping Solution assists industrial buyers in evaluating brass materials to meet component requirements and applicable specifications.
Specifications of C36300 Low Lead Brass Tubes
| Parameter / Item | Detail / Scope | Specification Basis |
|---|---|---|
| UNS Number | C36300 (Copper-Zinc-Lead Alloy) | CDA Designation |
| Governing Standard (Rod, Bar, Shapes) | ASTM B981 / B981M (Low-Leaded Brass) | ASTM B981 Scope |
| Related Alloys in ASTM B981 | C36500, C37000, C37100, C37700 | ASTM B981 Scope |
| Hollow Bar / Tube Availability | Heavy-wall hollow bar to mill specification | Mill Specification Basis |
| ASTM B135 Tube Standard Inclusion | Not listed in ASTM B135 scope table | ASTM B135 Scope |
| EN / ISO Equivalent | No EN equivalent confirmed. CW508L (CuZn37) is a different, unleaded grade. | CDA / EN Comparison Data |
| Hollow Bar Dimensions | Outer Diameter (OD), Bore (ID), Lengths | Mill Stock Schedule |
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Applications and Industrial Uses of C36300 Low Lead Brass Tubes
- Plumbing Industry
- Water Supply Industry
- Valve Manufacturing Industry
- Sanitary Fittings Industry
- Precision Machining Industry
- Forging Industry
- Industrial Equipment Manufacturing
- General Engineering Industry
Frequently Asked Questions
What are C36300 low lead brass tubes?
C36300 is a leaded copper-zinc brass alloy known for good machinability, hot-forging properties, and use in precision components.
What are the advantages of C36300 low lead brass?
Its main advantages include good machinability, efficient thread rolling, hot-forging capability, and suitability for precision component manufacturing.
Is C36300 brass considered lead-free?
No. C36300 typically contains 0.25% to 0.70% lead, so it is not considered lead-free.
What is the difference between C36300 and C36000 brass?
C36300 has 0.25 to 0.7% lead; C36000 has 2.5 to 3.0%. C36000 machines more freely (rating 100).
Is C36300 brass resistant to dezincification?
C36300 does not inherently guarantee dezincification resistance. Suitability depends on the service environment and applicable material requirements.
Are C36300 brass tubes suitable for potable water applications?
Only if the material and finished product meet the applicable drinking-water lead limits and certification requirements. Standard C36300 should not automatically be assumed suitable.
Material documentation and third-party inspection options available according to project requirements.
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