Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of C36300 Brass (Copper-Zinc-Lead Alloy / Free Machining Brass) in China, also supports customized service. With abundant experience, we warmly welcome you to wholesale cheap products in stock here and get free sample from our factory. For price consultation, contact us.
C36300 Brass (also known as Lead-Free Brass, Low-Lead Brass, Plumbing Brass, Eco Brass) is a high-performance copper-zinc alloy designed to meet modern lead-free, low-lead, and environmentally friendly regulations. With excellent corrosion resistance, dezincification resistance, hot workability, and pressure performance, C36300 is widely used for potable water fittings, valves, sanitary components, and precision-machined parts.
Available as C36300 Brass Rod, Bar, Tube, Forging Stock, and CNC Machined Components, it fully complies with ASTM, UNS, RoHS, NSF, and EU drinking-water requirements.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
TECHNICAL SPECIFICATIONS
| Item | Specification |
|---|---|
| Alloy | C36300 Brass |
| Type | Copper-Zinc-Lead Alloy |
| Copper (Cu) | 61.0 – 63.0% |
| Lead (Pb) | 0.25 – 0.7% |
| Zinc (Zn) | Balance |
| Standard | ASTM / EN Equivalent |
| Machinability | High |
| Density | ~8.4 g/cm³ |
Chemical Composition (Typical Values)
| Element | Content (%) |
|---|---|
| Copper (Cu) | 60.0 – 63.0 |
| Lead (Pb) | ≤ 0.09 (Lead-Free) |
| Zinc (Zn) | Balance |
| Others (Sn, As, etc.) | ≤ 0.20 |
Mechanical Properties
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 350–480 MPa | 51–70 ksi |
| Yield Strength | 150–250 MPa | 22–36 ksi |
| Elongation | 20–35% | 20–35% |
| Hardness | 80–120 HB | 80–120 HB |
| Density | 8.45 g/cm³ | 0.305 lb/in³ |
Available Specifications (Metric + Imperial + Tolerances)
Rod & Bar
Diameter: 6–150 mm (1/4" – 6")
Tolerance: h9–h11 or custom
Tube
OD: 10–100 mm (3/8" – 4")
Wall Thickness: 0.8–8 mm (0.03" – 0.31")
Forging Stock
Round • Square • Rectangular
For high-pressure valve & plumbing fittings
Machined Components (OEM)
CNC precision parts
Threads, drilling, milling, forming
Key Features & Advantages
1. Lead-Free & Environmentally Compliant
Meets RoHS, NSF/ANSI 61, REACH, and most global drinking-water regulations.
2. Excellent Corrosion & Dezincification Resistance (DZR)
Excellent performance in hot water and chlorinated water environments.
3. Superior Forgeability
Highly suitable for hot-forged valves, fittings, and hardware.
4. Good Mechanical Strength
Ensures reliable performance in pressure systems.
5. Replacement for Traditional Free-Cutting Brass
Safe, eco-friendly alternative to C36000, C36010, and other leaded brasses.
Typical Applications
Potable Water Fittings & Connectors
Plumbing & Sanitary Parts
Valve Bodies & Components
Faucet Cartridges
Pressure System Parts
Hot Forged Hardware
Low-Lead OEM CNC Components
Inspection & Quality Assurance
Includes full module per your long-term requirements：
Spectrometer Analysis for chemical composition
Mechanical Tests: tensile, hardness, elongation
Dimensional Checks: CMM, gauges, micrometers
Surface Inspection: burrs, cracks, porosity, oxidation
Forgeability Testing for forging stock
Third-Party Certification: SGS / TUV / BV
Full MTC / Traceability
Product Delivery Standards
Export-grade seaworthy packaging
Anti-moisture film + kraft paper
Pallet / plywood case
Tube ends capped
Custom lengths and machining available
Fast lead time for standard sizes
Looking for a trusted supplier of C36300 Low-Lead Brass?
We offer global delivery, OEM machining, full certifications, and mill-direct pricing.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
office@dongmjd.com
FAQ
Q1: Is C36300 truly lead-free?
Yes. Lead content is typically ≤0.09%, meeting global low-lead standards such as NSF 61, RoHS, and EU water regulations.
Q2: What is the difference between C36300 and C69300?
C36300: Low-lead brass with good forgeability
C69300 (Eco Brass): Lead-free silicon brass with superior dezincification resistance
Both are used in potable water systems, depending on cost and performance requirements.
Q3: Can C36300 be used for high-pressure valve applications?
Yes. Its mechanical strength and corrosion resistance make it suitable for cold and hot-water valves, fittings, and connectors.
Q4: Is machinability affected by low lead content?
Machinability is lower than C36000 but still good for CNC turning when using correct tools and coolant.
Optimized chip control tools are recommended.
Q5: Does C36300 resist dezincification?
Yes, it has excellent DZR performance, suitable for aggressive water environments.
Q6: Is forging performance better than other low-lead brasses?
Yes. C36300 maintains high hot workability, making it ideal for forged components like valves and plumbing fittings.
Q7: Do you offer C36300 with OEM machining services?
Yes. We provide:
CNC turning/milling
Threading
Punching/drilling
Surface finishing
Complete valve & fitting assemblies
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