Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of c36000 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.
C36000, also known as Free-Cutting Brass or Alloy 360, is the most machinable copper alloy in the world. With a lead content of 2.5–3.7%, it provides exceptional chip control, low tool wear, high-speed machining performance, and excellent dimensional stability. This makes it the primary choice for precision machined components, especially in electronics, plumbing, automotive, instrumentation, and general hardware.
Available in round bars, hex bars, square bars, rods, tubes, and custom profiles, C36000 is manufactured according to ASTM B16 / UNS C36000 and widely used for fittings, connectors, valves, fasteners, gears, screws, pins, and bushings.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
Products Description
Type: High-Leaded Alpha-Beta Brass
Key Properties: World-Class Machinability • Excellent Chip Control • Good Strength • Corrosion Resistant
Forms: Rod • Bar • Hex Bar • Tube • Profile
Applications: Connectors • Valves • Fasteners • Screws • Fittings
Standards: ASTM B16 • UNS C36000
Chemical Composition (Typical %)
| Element | Cu | Zn | Pb | Fe | Others |
|---|---|---|---|---|---|
| Content | 60.0–63.0 | Balance | 2.5–3.7 | ≤0.35 | ≤0.30 |
Highlight: Lead improves machinability, chip breakability, surface finish, and reduces tool wear.
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 330–480 MPa |
| Yield Strength | 100–200 MPa |
| Elongation | 20–35% |
| Hardness | 65–90 HB |
| Density | 8.44 g/cm³ |
| Machinability Rating | 100% (Baseline Standard) |
C36000 = 100% machinability benchmark against which all other copper alloys are compared.
Available Specifications (Metric + Imperial)
| Product Form | Dimensions (Metric) | Dimensions (Imperial) | Notes |
|---|---|---|---|
| Round Bar | 3–200 mm | 0.12"–8" | Best-selling form |
| Hex Bar | 4–75 mm | 0.16"–3" | Ideal for fasteners & connectors |
| Square Bar | 4–60 mm | 0.16"–2.36" | Precision machining |
| Tube | OD 6–80 mm | 0.24"–3.15" | Seamless & welded |
| Profile | Custom | Custom | OEM machining available |
Tolerances: ASTM B16
Surface: Polished, bright drawn, mill finish
Key Features
Best machinability among all copper alloys (100% rating)
Excellent chip control for high-speed CNC machining
Superior dimensional accuracy
Low tool wear, reducing production cost
Good strength and ductility
Good corrosion resistance in air, water, mild solutions
Excellent suitability for mass production of precision parts
Products Applications
Electrical & Electronic Connectors
Plumbing & HVAC Fittings
Screws, Bolts, Nuts, Fasteners
Precision valve parts
Gears, bushings, bearings
Instrumentation parts
Automotive hardware & fuel system components
Locks, hinges, decorative hardware
Inspection & Quality Assurance
Spectrometer chemical analysis
Mechanical tests: tensile, hardness, elongation
Dimensional inspection (tolerance & straightness)
Surface quality check for cracks, burrs, defects
Ultrasonic or eddy current testing (optional)
Full documentation: ISO 9001, SGS, TUV, MTC (EN 10204 3.1)
Product Delivery Standards
Packaging: Plastic film + anti-rust paper + strong wooden crate
Labeling: Grade • Size • Standard • Batch No. • Heat No.
Lead Time: 7–20 days
OEM Services: Cutting, CNC machining, threading, polishing
Export Support: CO / Form E / Form F / Form A
For C36000 Free Cutting Brass prices, samples, and technical support:
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
Q1: Why is C36000 considered the world's best machining brass?
A1: Due to its balanced copper-zinc matrix and high lead content, giving:
Short, consistent chips
Less tool wear
Excellent surface finish
Faster cutting speeds
This reduces machining cost by 20–40% compared to other copper alloys.
Q2: Is C36000 suitable for drinking water or lead-restricted applications?
A2: C36000 contains 2.5–3.7% lead, so it is not recommended for potable water in regions with strict lead regulations (e.g., USA NSF-61). For low-lead options, use:
C69300 (Lead-Free Brass)
C27400 / C28000 (Low-Lead Brass)
Q3: Can C36000 be welded or brazed?
A3:
Welding: Not recommended (lead causes porosity).
Soldering/Brazing: Suitable and widely used.
Q4: Does C36000 have good corrosion resistance?
A4: Yes, particularly against:
Fresh water
Industrial atmosphere
Lubricants
Mild acids
Avoid strong ammonia-bearing environments to prevent stress corrosion cracking.
Q5: What form is most commonly used?
A5: Round bars and hex bars, widely used in automatic screw machines and CNC lathes.
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