Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of c44400 high-leaded red 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.
C44400 High-Leaded Red Brass is a premium copper alloy widely used in valves, plumbing fittings, pump parts, and precision-machined components. As a leading C44400 brass supplier, manufacturer, and exporter, Xi'an Dongmeng Steel Co.,Ltd provides high-quality C44400 brass rods, bars, tubes, and custom parts with stable machinability and excellent corrosion resistance. We supply factory-direct pricing, full specifications, OEM machining, and global delivery, making us a trusted C44400 brass manufacturer in China for distributors, engineering companies, and industrial buyers worldwide.
Keywords: C44400 brass, High-Leaded Red Brass, red brass supplier, brass rod manufacturer, C44400 brass bar factory, copper alloy supplier China, Xi'an Dongmeng Group Co., Ltd.
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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 C44400 RED BRASS?
C44400 is a tin-bearing admiralty brass alloy designed to improve corrosion resistance in water and marine environments.
Typical composition:
Copper (Cu): ~70–73%
Zinc (Zn): Balance
Tin (Sn): ~0.8–1.2%
Lead (Pb): ≤0.07% (for machinability control)
👉 Tin improves seawater corrosion resistance
👉 Zinc provides strength
👉 Copper ensures durability
👉 Trace lead improves machinability
Alloy Grade: C44400 / High-Leaded Red Brass
Standards: ASTM B140, SAE J461/J463
Forms: Rods, Bars, Tubes, Plates, Custom Machined Parts
Key Traits: High machinability, good corrosion resistance, excellent pressure tightness
Applications: Valves, pumps, plumbing fittings, bearing parts
Specifications (Metric & Imperial)
C44400 Brass Rod / Bar
| Item | Metric | Imperial |
|---|---|---|
| Diameter | 6–200 mm | 0.24"–8" |
| Length | 1000–6000 mm | 3.2–20 ft |
| Tolerance | h10 / h11 | ASTM Standard |
| Condition | Hard / Half Hard / Annealed | Hard / Half Hard / Annealed |
C44400 Brass Tube
| Item | Metric | Imperial |
|---|---|---|
| OD | 6–120 mm | 0.24"–4.7" |
| Wall Thickness | 0.8–10 mm | 0.03"–0.39" |
| Length | 1–6 m | 3.2–20 ft |
| Tolerance | ±0.05 mm | ±0.002" |
Chemical Composition (ASTM B140)
| Element | Content (%) |
|---|---|
| Copper (Cu) | 84.0–86.0 |
| Lead (Pb) | 4.0–6.0 |
| Tin (Sn) | 4.0–6.0 |
| Zinc (Zn) | Balance |
| Iron (Fe) | ≤ 0.10 |
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength | 275–380 MPa |
| Yield Strength | 90–200 MPa |
| Elongation | 20–45% |
| Brinell Hardness | 60–100 HB |
| Density | 8.7 g/cm³ |
Product Features
Excellent machinability due to high lead content
Great corrosion resistance, especially in water and mild chemicals
High pressure tightness, suitable for plumbing and hydraulic systems
Good wear resistance for rotating and bearing components
Stable cutting performance, ideal for CNC machining and automated lathes
Supports complex shapes and custom fittings
Products Applications
C44400 High-Leaded Red Brass is widely used in:
Valves and valve stems
Plumbing fittings & water supply components
Pump housings and pump parts
Precision CNC machined brass parts
Bearing sleeves & bushings
Ornamental hardware
Electrical connectors and terminals
Standards & Compliance
C44400 complies with:
ASTM B111 (heat exchanger tubes)
ASTM B543
UNS C44400 classification
Marine engineering copper alloy standards
Widely used in shipbuilding, desalination, and power plants.
Project Case – Marine Heat Exchanger System
Client Country: Singapore
Industry: Marine Engineering
Material Supplied:
C44400 Admiralty Brass Tubes
Specification:
Seamless heat exchanger tubes (ASTM B111 standard)
Requirement:
Long-term seawater exposure
Resistance to dezincification
Stable thermal conductivity
Our Solution:
Supplied arsenical/tin-stabilized C44400 tubes
Strict chemical composition control
Eddy current + hydraulic pressure testing
Result:
Improved heat exchanger service life by 35% in seawater environment.
Export Experience
Exported to 50+ countries
Widely used in marine and energy industries
Stable supply for heat exchanger manufacturers
Why C44400 Is Used in Marine Applications
C44400 performs well because of:
1️⃣ Tin (Sn)
Increases seawater corrosion resistance
Reduces dezincification risk
2️⃣ Controlled Zinc Content
Maintains strength and thermal conductivity
3️⃣ Copper Base
Ensures long-term durability in water systems
👉 This makes it ideal for heat exchanger and condenser environments
C44400 vs C44300 vs C46400
| Property | C44300 | C44400 | C46400 |
|---|---|---|---|
| Type | Admiralty Brass | Tin Admiralty Brass | Naval Brass |
| Corrosion Resistance | Good | Better | Very Good |
| Seawater Resistance | Medium | High | High |
| Strength | Medium | Medium-High | High |
| Application Focus | Heat exchangers | Marine + condensers | Structural marine parts |
👉 Conclusion:
C44400 is the best choice for marine heat exchanger and seawater cooling systems requiring higher corrosion resistance.
Processing Characteristics
Excellent tube drawing performance
Good cold and hot workability
Suitable for heat exchanger manufacturing
Good brazing and welding compatibility
Manufacturing Capability
Seamless tube production
Cold drawing & annealing process
Precision tube control
OEM marine engineering supply
Industry Applications
Heat exchanger tubes
Condenser systems
Marine cooling systems
Desalination equipment
Shipbuilding components
Inspection & Quality Assurance
Xi'an Dongmeng Steel Co.,Ltd implements strict quality control:
100% material verification using spectrometer analysis
Dimensional checks with micrometer / caliper / CMM
Mechanical property testing (tensile, hardness)
Surface inspection: cracks, pits, dents, oxidation
Compliance with ASTM B140 / SAE standards
Third-party inspection available: SGS / TUV / BV
All shipments come with:
Mill Test Certificate (EN 10204 3.1)
Packing list & HS code documents
Customized export packaging
Product Delivery Standards
Standard export pallet + waterproof plastic wrap
Wooden cases for precision machined parts
Clear heat numbers & alloy identification
Support FOB / CIF / CFR / EXW terms
Fast delivery from warehouse or custom production
Xi'an Dongmeng Steel Co.,Ltd - Your Reliable Global Supplier of Brass, Copper Alloys & Industrial Metals
Ready to source C44400 High-Leaded Red Brass or need a customized quotation?
Our team provides 24/7 quick response, professional technical support, and fast global delivery.
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
Q1: What is C44400 High-Leaded Red Brass used for?
C44400 is commonly used for valves, plumbing fittings, pump components, bushings, bearings, hydraulic parts, and CNC-machined precision pieces due to its high machinability and corrosion resistance.
Q2: Do you supply C44400 in rods, bars, tubes, and customized parts?
Yes. Xi'an Dongmeng Steel Co.,Ltd supplies rods, bars, hollow bars, tubes, plates, and fully customized machined parts based on drawings or samples.
Q3: Is C44400 suitable for potable-water and plumbing systems?
Yes. C44400 has excellent corrosion resistance, making it highly suitable for water distribution systems, plumbing fittings, and pump housings.
Q4: Can you provide small samples for testing?
Absolutely. We can provide free or low-cost samples depending on the size and specification required.
Q5: Do you support OEM machining and customized dimensions?
Yes. We offer OEM machining, including cutting, drilling, milling, threading, polishing, and tight-tolerance CNC machining.
Q6: What quality documents do you provide?
Every shipment includes a Mill Test Certificate (EN10204 3.1).
We also support SGS / TUV / BV third-party inspection upon request.
Q7: How do you ensure consistent quality for C44400 brass materials?
We perform:
Spectrometer chemical composition tests
Tensile & hardness testing
Dimensional inspection (CMM / micrometer)
Surface check for cracks, porosity, dents, oxidation
Full traceability by heat number
Q8: What are your minimum order quantities?
MOQ is flexible. For regular sizes, small orders are accepted. For customized machining, MOQ depends on the drawing.
Q9: What is your typical delivery time?
Stock sizes: 3–7 days
Customized machining: 7–20 days
Bulk production: Negotiable based on quantity & specifications
Q10: Which international standards does C44400 comply with?
C44400 complies with ASTM B140, SAE J461/J463 and relevant international copper alloy standards.
C44400 high leaded red brass (Admiralty Brass) is a tin-bearing copper alloy with excellent seawater corrosion resistance, thermal conductivity, and machinability, widely used in heat exchangers, condensers, and marine engineering systems.
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