Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of C36400 Brass (Free Cutting Brass / Leaded 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.
C36400 Brass (also called Low-Lead Brass, Plumbing Brass, Eco-Friendly Brass, and High-Strength Lead-Reduced Brass) is a premium copper-zinc alloy designed for potable water systems, hot forging, and precision machined components requiring low lead content and enhanced mechanical strength.
With excellent dezincification resistance (DZR), superior hot workability, and strong pressure performance, C36400 is widely used for valve bodies, plumbing fittings, sanitary parts, connectors, and forged components.
Available as C36400 Brass Rod, Bar, Tube, Forging Stock, and OEM Machined Parts, fully compliant with ASTM, UNS, RoHS, NSF, and EU drinking-water regulations.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
What is C36400 Brass?
C36400 Brass, also known as free-cutting brass or leaded machining brass, is a high-performance copper–zinc–lead alloy (Cu-Zn-Pb) designed specifically for high-speed machining and precision manufacturing.
It is widely used in CNC turning, screw machine parts, plumbing components, automotive fittings, electrical connectors, and industrial hardware, where excellent machinability and dimensional stability are required.
Key Characteristics of C36400 Brass
★ Excellent machinability (industry benchmark 100%)
★ Stable cutting performance in high-speed CNC machining
★ Good corrosion resistance in dry and mild environments
★ Smooth surface finish after machining
★ Reduced tool wear and longer tool life
★ Ideal for mass production of precision parts
Products Description
Grade: C36400
Type: Low-Lead / DZR Brass
Properties: Low Lead • High Strength • DZR • Hot Forgeable • Corrosion Resistant
Forms: Rod • Bar • Tube • Forging Stock • CNC Parts
Standards: ASTM B927 • UNS C36400
Applications: Valves • Plumbing Hardware • Potable Water Fittings
International Equivalent Grades
UNS: C36400
ASTM: B16
EN: CW602N (approx.)
ISO: CuZn39Pb3
Manufacturing & Processing Advantages
C36400 brass is specially designed for:
High-speed automatic screw machines
CNC turning and milling
Mass production machining
Tight tolerance precision parts
✔ Produces short, clean chips
✔ Reduces machining cost
✔ Improves production efficiency
Chemical Composition (Typical Values)
| Element | Content (%) |
|---|---|
| Copper (Cu) | 58.0 – 62.0 |
| Lead (Pb) | 0.09 – 0.25 (Low-Lead) |
| Zinc (Zn) | Balance |
| Tin (Sn) | ≤ 0.2 |
| Others | ≤ 0.20 |
Mechanical Properties
| Property | Metric | Imperial |
|---|---|---|
| Tensile Strength | 350–500 MPa | 51–72 ksi |
| Yield Strength | 150–250 MPa | 22–36 ksi |
| Elongation | 15–30% | 15–30% |
| Hardness | 90–130 HB | 90–130 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 forged valves, fittings & sanitary hardware
OEM Machined Parts
Threads, drilling, turning, milling, surface finishing
Key Features & Advantages
1. Low-Lead Formulation
Designed to comply with RoHS, REACH, and global drinking-water standards.
2. High Strength & Durable Performance
Stronger than traditional free-cutting brasses, suitable for pressure-bearing components.
3. Excellent Dezincification Resistance (DZR)
Highly resistant to corrosion in hot water, chlorinated water, and aggressive environments.
4. Excellent Hot Forging Characteristics
Ideal for forging valves, plumbing fittings, and precision sanitary hardware.
5. Good Machinability for CNC Production
Produces clean surfaces with proper tooling and cutting conditions.
Applications of C36400 Brass
🏗 Industrial & Mechanical Components
Precision machined parts
Bushings and fittings
Valves and valve components
Hydraulic connectors
🚰 Plumbing & Fluid Systems
Faucet components
Pipe fittings
Couplings and adapters
⚡ Electrical Industry
Connectors
Terminals
Switch components
🚗 Automotive Industry
Sensor housings
Fasteners
Fuel system fittings
🧰 Hardware & OEM Manufacturing
Screws, nuts, bolts
Decorative hardware
Custom CNC parts
Inspection & Quality Assurance
All C36400 brass products are manufactured under strict quality control systems:
Chemical composition testing (spectrometer analysis)
Mechanical property verification
Dimensional tolerance inspection
Surface finish inspection
Third-party quality certification available upon request
✔ Ensures consistent machinability
✔ Stable batch-to-batch performance
✔ Suitable for export-grade industrial use
Product Delivery Standards
Export-standard seaworthy packaging
Moisture-proof film + kraft paper
Pallet / plywood case
Tube ends capped
Custom-cut lengths available
Fast delivery for regular sizes
OEM machining & assembly service available
Looking for a reliable supplier of C36400 Low-Lead Brass?
We offer global shipping, 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
FAQ
Q1: What differentiates C36400 from C36300 or C36500?
C36400 offers:
Higher strength
Improved pressure resistance
Balanced low-lead content
Superior hot forging performance
It is commonly chosen for heavy-duty plumbing and valve components.
Q2: Is C36400 suitable for drinking water systems?
Yes. It meets global low-lead and DZR requirements, making it ideal for potable water fittings and valves.
Q3: How is machinability compared to C36000?
Lower than C36000 due to reduced lead content, but still excellent with proper:
Cutting tools
Lubrication
Feed and speed adjustments
Q4: Can C36400 be hot forged?
Yes, C36400 is a high-performance forging brass, widely used for forged valve bodies and connectors.
Q5: Why is C36400 preferred over traditional leaded brass in plumbing systems?
Because it offers:
Lower lead content
Improved corrosion resistance
Stronger mechanical properties
Better environmental compliance
Q6: Do you supply C36400 with machining service?
Yes. We provide:
CNC turning & milling
Drilling & threading
Surface finishing
Custom-made forged and machined components
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