Precision CNC Machining for Brass H59 – Custom Parts with High Machinability
Brass H59 is a popular leaded brass alloy (nominal composition: 59% copper, 40% zinc, 1% lead). It is known for its excellent machinability, good corrosion resistance, and attractive gold‑like appearance. At Ranglink, we specialize in CNC machining of Brass H59 for prototypes and production runs – from simple turned parts to complex milled components.
💡 Why do engineers choose H59?
– High feed rates and excellent chip breaking reduce cycle times.
– Lead content improves surface finish and tool life.
– Easy to plate, polish, or laser mark for decorative or functional finishes.
– High feed rates and excellent chip breaking reduce cycle times.
– Lead content improves surface finish and tool life.
– Easy to plate, polish, or laser mark for decorative or functional finishes.
Key Properties of Brass H59
| Property | Value / Rating |
|---|---|
| Tensile strength | ~330 MPa |
| Yield strength | ~140 MPa |
| Hardness (Brinell) | ~95 |
| Density | 8.5 g/cm³ |
| Electrical conductivity | ~26% IACS |
| Corrosion resistance | Good (indoor & mild outdoor) |
| Machinability rating | Excellent (100% – reference standard) |
| Lead content | ~1% (improves machinability) |
⚠️ Note: Because H59 contains lead, it is not recommended for applications in direct contact with drinking water in regions that restrict lead content (e.g., NSF/ANSI 61). For lead‑free requirements, consider brass C27450 or C69300. Contact us for alternatives.
Our CNC Machining Capabilities for Brass H59
| Parameter | Specification |
|---|---|
| Max part size (milling) | 1100 × 600 × 500 mm |
| Max turning diameter | Ø230 mm |
| Standard tolerance | ±0.05 mm |
| Precision tolerance | ±0.005 mm (on request) |
| Surface roughness (as machined) | Ra 1.6 μm |
| Lead time (prototypes) | 3 business days |
Processes available: CNC Turning & Live tooling · CNC Milling (3‑axis, 4‑axis, full 5‑axis) · CNC Drilling & Tapping · EDM (rarely needed for brass).
💡 Machining tip: Brass H59 produces fine, powdery chips. Use sharp carbide tools and moderate coolant flow. High spindle speeds and feed rates are recommended.
Surface Treatment Options for Brass H59
Polishing (mirror/satin)
Bead Blasting
Brushing
Electroplating (nickel, chrome, gold)
Laser Marking
Silkscreen
Clear Lacquer (anti‑tarnish)
Note: Anodizing is not applicable to brass. Passivation is not required for this alloy.
Common Applications of CNC Machined Brass H59
🚰 Plumbing & Hydraulics – fittings, valves, connectors
⚡ Electrical & Electronics – terminals, switches, fuse caps
🔩 Industrial Hardware – threaded inserts, standoffs, bushings
🏠 Architectural & Decorative – door handles, hinges, nameplates
🛠️ Pneumatics – quick‑release couplings, regulators
⚙️ Precision Instruments – gears, worm shafts, measuring components
Quality Assurance
- ISO 9001:2015 certified – audited quality management system.
- Full traceability – material certificates (EN 10204 3.1) and inspection reports.
- Inspection equipment – CMM, calipers, micrometers, height gauges, surface roughness testers.
- Every part inspected – we ensure your brass parts meet all dimensional and cosmetic requirements.
Why Choose Ranglink for Brass H59 CNC Machining?
No Minimum Order
From 1 piece to high volume – we accept small batches.
Fast Lead Times
Prototypes ready in as few as 3 days.
24h Quote
Send your CAD, get a quote within one working day.
DFM Support
Optimize tool paths to further reduce cost.
Transparent Pricing
No hidden fees – clear quote breakdown.
Ready to Start Your Brass H59 CNC Project?
👇 Upload your CAD file (STEP, IGES, STL, SolidWorks) for a free quote within 24 hours.
📧 info@ranglink.com | 🌐 www.ranglink.com | 📱 WhatsApp: +86 17338532394