Brass Machining Services | Custom Brass Parts
Precision Brass Investment Casting & CNC Machining
From complex prototypes to high-volume production. One‑stop solution: casting, 5‑axis CNC, surface finishing for automotive, hydraulic & industrial applications.
±0.01mm
Casting Tolerance
0.01–85kg
Casting Weight
600mm
Max Outline
Ra 3.2
Surface Finish
Why Choose Brass for Your Components?
Brass offers a unique blend of aesthetic appeal and high-performance engineering properties.
Corrosion Resistance
Excellent resistance to moisture and salt water, making it ideal for marine and plumbing applications.
High Conductivity
Superior electrical and thermal conductivity compared to steel or most aluminum alloys.
Exceptional Machinability
Higher cutting speeds and lower tool wear, significantly reducing the cost of secondary CNC operations.
Antibacterial Properties
Natural antimicrobial properties make it the preferred choice for medical and food-grade hardware.
Common brass alloys we cast & machine
We work with all major brass alloys. Our engineers provide free DFM consultation to select the optimal grade for your application, budget, and production volume.
| Alloy | Key properties | Typical applications |
|---|---|---|
| C360 (free-cutting) | superb machinability, high speed | connectors, gears, valve stems, high-volume screw machine parts |
| C260 (cartridge brass) | high ductility, good strength | housings, architectural hardware, deep-drawn components |
| C464 (naval brass) | enhanced corrosion resistance in salt water | marine fittings, propeller shafts, pump parts |
| C84400 (leaded semi-red) | pressure tightness, castability | valves, sprinkler heads, plumbing fittings |
| C499 (lead-free) | RoHS compliant, excellent strength | potable water components, electrical terminals |
💡 Alloy Selection Guidance: Not sure which grade fits your project? Our metallurgical engineers will analyze your load conditions, environment, and budget to recommend the optimal brass alloy — completely free of charge before order placement.
Common brass machined parts
From high-volume hydraulic fittings to precision medical valves — our brass casting capabilities span every critical industry.
Valve Bodies & Stems
Ball, gate, globe & check valves
Plumbing Fittings
Elbows, tees, couplings & adapters
Electrical Connectors
Terminals, bushings & contacts
Pump & Hydraulic Parts
Impellers, housings & manifolds
Automotive Components
Sensors, bearings & fuel systems
Medical Devices
Surgical tools & instrument housings
Hardware & Fasteners
Locks, hinges & decorative hardware
Aerospace & Defense
Actuators, bushings & precision parts
One-Stop Production Capacity
At Allied Metal, we don’t just cast; we provide a complete engineering solution from design to finished assembly.
Investment Casting:
Tolerances up to ISO8062-3 DCTG4. Weights from 0.01kg to 85kg.
CNC Excellence:
200+ machines including 5-axis centers for complex geometries.
Quality Assurance:
ISO 9001 & TS 16949 certified. In-house CMM and material spectrometers.
Surface Finishing:
Electro-polishing, sandblasting, plating, and heat treatment.
Rapid Prototyping:
3D printed wax patterns for 7-10 day sample delivery.
Our Brass Casting Process
A proven 5-stage workflow from design review to delivery — optimized for precision, speed, and cost efficiency.
Why Partner With Us for Brass Casting?
We’re not just a foundry. We’re a strategic manufacturing partner who helps OEMs reduce cost, accelerate time-to-market, and de-risk their supply chain.
01
Free DFM Consultation
Our engineers review your CAD before tooling starts, catching expensive design issues early. Most customers save 15–25% in manufacturing cost from DFM improvements alone.
02
7-Day Rapid Prototyping
From approved drawing to brass sample in 7 working days. We use resin-printed patterns for ultra-fast first article validation — no hard tooling required.
03
Small-Batch Flexible Production
MOQ starts at 50 pieces. No minimum penalty. Scale from prototype to 100,000+ pieces per year on the same supply chain — without switching suppliers.
04
One-Stop Service
Casting → machining → surface treatment → assembly → packaging. Every step in-house. Fewer suppliers, fewer hand-offs, fewer delays, and full accountability.
05
ISO 9001 & TS16949 Certified
Audited quality management system with full material traceability, first-article inspection reports, and production part approval process (PPAP) documentation on request.
06
Dedicated Project Engineer
Every customer gets a named project engineer as single point of contact — responsive within 4 hours, technically capable, and accountable from RFQ to delivery.
Success Story: Marine High-Pressure Valve Body
The Challenge
A German brand owner required a complex C46400 Naval Brass valve body that could withstand high-pressure salt spray environments. The design featured deep internal cavities and tight thread tolerances that traditional sand casting couldn’t achieve.
The Allied Metal Solution
We utilized our Investment Casting process to create a near-net shape, followed by 5-axis CNC machining for the critical mounting surfaces. Our DFM suggestion reduced the raw material weight by 15%.
Project Parameters
Start your brass project
Upload your CAD or request free DFM analysis. Our brass specialists will respond within 24h.
- +86 15165674950
- quote@alliedcn.com