Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of C69300 Lead-Free Brass Alloy Supplier | UNS C69300 ECO Brass Rod, Bar, Tube & Plate 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.
C69300 lead-free brass alloy, also known as UNS C69300 ECO brass, is a high-performance silicon brass designed for applications requiring low lead content, excellent machinability, high strength and superior corrosion resistance. Compared with traditional free-cutting brass such as C36000, C69300 provides a more environmentally friendly solution for potable water fittings, plumbing components, valves, water meters, marine hardware and precision machined parts.
As a professional C69300 brass supplier, we provide C69300 brass rod, round bar, hex bar, tube, plate, sheet, forged blanks and customized machined components according to customer drawings, ASTM requirements and export packaging standards.
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High Quality
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Advanced Equipment
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Professional Team
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Custom Service
Key Advantages of C69300 Lead-Free Brass Alloy
1. Lead-Free Solution for Water Contact Applications
C69300 is developed for applications where low lead content and water-contact safety are important. It is widely used for potable water fittings, plumbing valves, faucets, water meters and fluid control components.
2. Excellent Dezincification Resistance
The silicon and phosphorus alloying system helps improve resistance to dezincification in water-related environments. This makes C69300 suitable for plumbing, marine and industrial fluid systems.
3. Good Machinability for Precision Parts
C69300 offers good machining performance and is widely used for CNC turning, automatic screw machine parts, valve bodies, fittings and connectors. Concast lists the machinability rating of C69300 as 85.
4. Higher Strength Than Many Standard Brasses
C69300 provides strong mechanical performance for high-load components. Aviva Metals describes C693 lead-free brass as having high strength, good machinability, excellent hot forgeability, and excellent stress corrosion cracking resistance.
5. Suitable for Forging, Soldering, Brazing and Plating
C69300 is suitable for hot forming, polishing, brazing, soldering and surface finishing, making it useful for both industrial parts and visible hardware components.
Products Description
Material: C69300 Brass (ECO Brass / CW724R)
Type: Lead-Free Forging Brass
Forms: Rod • Bar • Billet • Profiles
Key Features: DZR Resistance • Lead-Free • High Strength
Applications: Drinking Water Systems • Plumbing Valves • Fittings
Standards: ASTM B371 • ASME SB371 • EN 12165 (CW724R)
Specifications (Metric & Imperial)
C69300 Brass Rod / Round Bar
| Item | Metric Size | Imperial Size | Length |
|---|---|---|---|
| Round Rod | 3 mm – 300 mm | 1/8" – 12" | 1 m – 6 m / Custom |
| Precision Rod | 3 mm – 80 mm | 1/8" – 3" | Custom cut length |
| Large Diameter Bar | 80 mm – 300 mm | 3" – 12" | Saw cut / forged |
C69300 Brass Hex Bar
| Item | Metric Size | Imperial Size | Length |
|---|---|---|---|
| Hex Bar | 5 mm – 100 mm | 3/16" – 4" | 1 m – 6 m |
| CNC Machining Hex Bar | 8 mm – 80 mm | 5/16" – 3" | Custom |
C69300 Brass Tube
| OD | Wall Thickness | Length | Processing |
|---|---|---|---|
| 6 mm – 250 mm | 0.5 mm – 30 mm | 1 m – 6 m | Cut / Annealed / Polished |
| 1/4" – 10" | 0.02" – 1.18" | Custom | Drawing / Machining |
C69300 Brass Plate / Sheet
| Thickness | Width | Length | Surface |
|---|---|---|---|
| 0.5 mm – 100 mm | 100 mm – 2000 mm | 500 mm – 6000 mm | Mill / Polished / Brushed |
| 0.02" – 4" | 4" – 78" | Custom | Custom finish |
Custom C69300 Machined Parts
| Processing | Available Service |
|---|---|
| Cutting | Saw cutting / Laser cutting / Waterjet cutting |
| Machining | CNC turning / CNC milling / Drilling / Threading |
| Forging | Hot forged blanks / Valve blanks / Fitting blanks |
| Surface | Polishing / Plating / Brushing / Deburring |
| Drawing Support | OEM according to drawings or samples |
C69300 Brass Chemical Composition
| Element | Content % |
|---|---|
| Copper, Cu | 73.00–77.00 |
| Silicon, Si | 2.70–3.40 |
| Phosphorus, P | 0.04–0.15 |
| Lead, Pb | 0.09 max |
| Tin, Sn | 0.20 max |
| Iron, Fe | 0.10 max |
| Nickel, Ni | 0.10 max |
| Manganese, Mn | 0.10 max |
| Zinc, Zn | Balance |
Typical Mechanical Properties of C69300 Brass
| Product Form | Temper | Tensile Strength | Yield Strength | Elongation | Hardness |
|---|---|---|---|---|---|
| Rod / Bar | H02 Half Hard | ≥585 MPa / 85 ksi | ≥310 MPa / 45 ksi | ≥5% | HRB 85 max |
| Tube | M30 | Approx. 565 MPa / 82 ksi | Approx. 276 MPa / 40 ksi | Approx. 15% | HRB 80 approx. |
| Bar / Rod | Custom Temper | According to order | According to order | According to order | According to MTC |
Note: Mechanical properties vary depending on product form, size, temper, heat treatment and processing method. Final values should be confirmed by Mill Test Certificate.
Product Features
1. Lead-Free & Fully Safe for Drinking Water
C69300 contains ≤ 0.09% Pb, making it compliant with global standards:
NSF/ANSI 61
NSF 372
EU Drinking Water Directive
California Proposition 65
2. Excellent Dezincification Resistance (DZR)
Ideal for long-term use in high-temperature, high-moisture, or aggressive water conditions.
3. Superior Hot Forging Performance
Works smoothly at high temperatures with clean metal flow, suitable for complex valve bodies and fittings.
4. High Strength with Good Ductility
Stronger than traditional leaded brass (C36000 / C37700) while maintaining formability.
5. Environmentally Friendly & Globally Compliant
Safe for potable water, food-contact components, and green building systems.
C69300 Lead-Free Brass Applications
1. Potable Water & Plumbing Fittings
C69300 is widely used for drinking water contact parts, plumbing fittings, faucet components, pipe connectors, couplings, elbows and water distribution hardware.
2. Valve & Fluid Control Components
C69300 is suitable for valve stems, valve bodies, valve seats, sensor bodies, connectors and fluid control components requiring strength, corrosion resistance and low lead content.
3. Water Meters & Instrument Components
C69300 provides reliable dimensional stability and corrosion resistance for water meter bodies, meter connectors, sensor housings and measurement-related components.
4. Marine Hardware
Because of its corrosion resistance and strength, C69300 can be used in selected marine hardware, pump parts, fasteners and water-contact components.
5. Precision CNC Machining
C69300 is suitable for machined components such as nuts, bolts, connectors, sensor bodies, automatic screw machine parts and custom OEM parts. Atlas Bronze lists typical C69300 uses including fluid connectors, sensor bodies, thermostat parts, automatic screw machine parts, bolts, condenser tube parts and nuts.
C69300 vs C36000 Brass
| Item | C69300 Lead-Free Brass | C36000 Free-Cutting Brass |
|---|---|---|
| Lead Content | Very low lead | High lead content |
| Machinability | Good, machinability rating around 85 | Excellent, very easy to machine |
| Potable Water Suitability | Better option for water-contact applications | Restricted in many lead-sensitive applications |
| Corrosion Resistance | Excellent dezincification resistance | General corrosion resistance |
| Strength | Higher strength | Medium strength |
| Forging | Excellent hot forgeability | Limited compared with forging brasses |
| Main Uses | Plumbing, valves, water meters, marine hardware, precision parts | General screw machine parts, fittings, connectors |
| Positioning | Lead-free, corrosion-resistant replacement | Traditional free-cutting brass |
C69300 is often selected as a lead-free alternative to C36000 when customers need better compliance for water-contact parts while maintaining good machinability and mechanical strength.
C69300 vs C37700 vs C46400
| Grade | Type | Main Feature | Best Application |
|---|---|---|---|
| C69300 | Lead-Free Silicon Brass | Lead-free, DZR resistance, good machinability | Potable water, valves, precision parts |
| C36000 | Free-Cutting Brass | Excellent machinability, contains lead | General machining parts |
| C37700 | Forging Brass | Good hot forging performance | Forged fittings, valves |
| C46400 | Naval Brass | Good marine corrosion resistance | Marine hardware, shipbuilding parts |
| C68700 | Aluminum Brass | Seawater corrosion resistance | Condenser tubes, heat exchangers |
Inspection & Quality Assurance
Chemical Composition Test: Spectrometer analysis
DZR Testing: ASTM & EN standards
Mechanical Property Test: Tensile, hardness, elongation
Dimensional Inspection: Diameter, tolerance, straightness
Surface Quality Check: No cracks, folds, porosity
Third-Party Inspection: SGS / TUV / BV available
Traceability: Heat number tracking + material certification
Documents Available
Mill Test Certificate
Chemical Composition Report
Mechanical Property Report
Dimensional Inspection Report
Packing List
Certificate of Origin
Third-Party Inspection Report
RoHS / Lead-Free related documents upon request
Product Delivery Standards
| Item | Standard Delivery Option |
|---|---|
| Product Form | Rod, bar, tube, plate, sheet, forged blanks, machined parts |
| Surface Condition | Mill finish, polished, brushed, plated, custom finish |
| Length | Standard length or cut-to-size |
| Tolerance | According to ASTM, EN, JIS or customer drawing |
| MOQ | Flexible MOQ for standard sizes |
| Packaging | Plastic film, waterproof paper, wooden case, pallet |
| Marking | Grade, size, heat number, batch number, customer mark |
| Documents | MTC, invoice, packing list, CO, inspection report |
| Shipping | Sea freight, air freight, express, rail transport |
| Custom Service | OEM drawings, CNC machining, forged blanks, cut pieces |
Packaging & Export Protection
C69300 brass products are packed according to product form, size and export transportation requirements.
Rod / Bar Packaging
Bundled with steel strips
Wrapped with waterproof paper
Protected by plastic film
Wooden case or pallet available
Clear label with grade, size, quantity and heat number
Tube Packaging
Plastic caps for tube ends if required
Anti-scratch surface protection
Wooden crate packaging
Custom inner protection for precision tubes
Plate / Sheet Packaging
Surface protection film
Waterproof paper
Wooden pallet
Edge protection
Moisture-proof export package
Looking for a reliable C69300 / CW724R Lead-Free Brass Supplier?
We provide stable quality, fast delivery, and full technical support for global manufacturers in the plumbing, valve, and drinking water system industries.
Send us your required C69300 brass grade, product form, size, quantity, temper, tolerance, application and destination port. Our technical and sales team will provide material selection support, quotation, delivery solution and export documents.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
1. What is C69300 lead-free brass alloy?
C69300 is a lead-free silicon brass alloy with high strength, good machinability, excellent dezincification resistance and corrosion resistance. It is widely used for potable water fittings, valves, water meters, plumbing components and precision machined parts.
2. Is C69300 brass suitable for drinking water applications?
Yes. C69300 is commonly used for water-contact components such as plumbing fittings, faucet parts, water meters and valves. Final compliance should be confirmed according to the required project standard and third-party testing.
3. What is the lead content of C69300 brass?
According to common ASTM B371 composition ranges, the lead content of C69300 is usually limited to 0.09% maximum.
4. Is C69300 a lead-free alternative to C36000 brass?
Yes. C69300 is often used as a lead-free and more corrosion-resistant alternative to C36000 free-cutting brass, especially for water-contact and lead-restricted applications.
5. What product forms can you supply?
We can supply C69300 brass rod, round bar, hex bar, square bar, tube, plate, sheet, forged blanks and custom CNC machined components.
6. Can C69300 brass be machined?
Yes. C69300 has good machinability and is suitable for CNC turning, automatic screw machine parts, drilling, threading and precision machining. The machinability rating is commonly listed around 85.
7. What are the main applications of C69300 brass?
Main applications include plumbing fittings, potable water components, valves, water meters, marine hardware, fluid connectors, sensor bodies, fasteners and precision OEM parts.
8. Can you provide custom sizes?
Yes. We can provide standard sizes and custom sizes according to drawings, samples, ASTM standards or buyer specifications.
9. Can you provide MTC?
Yes. Mill Test Certificate, chemical composition report, mechanical property report and dimensional inspection report can be supplied with each batch.
10. Can you support third-party inspection?
Yes. SGS, BV, TUV or other third-party inspection can be arranged according to customer requirements.
11. What information should I provide for quotation?
Please provide grade, product form, size, quantity, standard, temper, tolerance, surface requirement, application and destination port.
12. Do you supply C69300 machined parts?
Yes. We can supply cut pieces, forged blanks and CNC machined parts according to customer drawings or samples.
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