Xi'an Dongmeng Group Co., Ltd. is one of the most reliable manufacturers and suppliers of c83800 high strength red brass | astm b505 / b584 copper alloy 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.
C83800 High-Strength Red Brass-also known as C83800 Bronze, High-Strength Red Brass, or Copper Alloy 838-is a premium casting-grade brass widely used in plumbing systems, pump housings, valve parts, bearings, bushings, hydraulic components, and general mechanical castings. As a leading C83800 red brass supplier, manufacturer, and exporter in China, Xi'an Dongmeng Group Co., Ltd. offers high-quality C83800 bronze castings, centrifugal cast tubes, continuous cast bars, and CNC-machined custom components that meet ASTM B584/B505 standards. We provide OEM machining, engineered solutions, short lead time, factory-direct pricing, and global delivery, making us a trusted C83800 brass manufacturer for industrial buyers worldwide.
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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 C83800 RED BRASS?
C83800 is a leaded red brass (high-strength bronze-type alloy) classified under ASTM B505 / B584 standards.
Typical composition:
Copper (Cu): 83–86%
Tin (Sn): 4–6%
Lead (Pb): 4–6%
Zinc (Zn): 4–7%
👉 Copper provides corrosion resistance
👉 Tin increases strength and wear resistance
👉 Lead improves machinability and sealing performance
👉 Zinc improves castability
Grade: C83800
Alias: High-Strength Red Brass / Red Brass Bronze
Standards: ASTM B505 • ASTM B584
Forms: Bars • Rods • Tubes • Bushings • Bearings • Castings
Processes: Sand Casting • Centrifugal Casting • Continuous Casting • CNC Machining
Industries: Plumbing • Pumps • Valves • Machinery • HVAC • Fluid Handling
Specifications (Metric & Imperial)
1. Continuous Cast / Centrifugal Cast Tubes
| Size | Metric | Imperial |
|---|---|---|
| ID | 20–600 mm | 0.78"–24" |
| OD | 40–900 mm | 1.57"–36" |
| Length | 300–3000 mm | 12"–118" |
| Tolerance | ±0.05 mm | ±0.002" |
2. Rods & Bars (Continuous Cast)
| Diameter | 20–350 mm | 0.78"–14" |
| Length | 1–6 m | 39"–236" |
3. Custom Castings
Weight: 0.1–2,500 kg
Shapes: pump bodies, valves, plumbing fittings, mechanical housings, wear parts
Machining accuracy: ±0.01 mm
Chemical Composition (ASTM B584 / C83800)
| Element | % |
|---|---|
| Copper (Cu) | 83.0–86.0 |
| Tin (Sn) | 4.0–6.0 |
| Lead (Pb) | 4.0–6.0 |
| Zinc (Zn) | 4.0–7.0 |
| Iron (Fe) | ≤0.20 |
| Nickel (Ni) | ≤1.0 |
Key Features & Technical Advantages
1. Superior Casting Performance
High fluidity → excellent mold filling
Low shrinkage → stable dimensions
Smooth surface → reduced secondary machining
2. High Strength & Structural Stability
Stronger than typical red brass grades
Suitable for pressure-bearing components
Resistant to mechanical fatigue
3. Excellent Corrosion Resistance
Works reliably in:
Potable water systems
Mild acidic/alkaline environments
Lubricated machinery
Low-salinity marine environments
4. Enhanced Machinability
4–6% Pb ensures smooth chip formation
Suitable for high-speed CNC machining
5. Versatile for Both Static & Dynamic Loads
Ideal for bushings, bearings, pump parts, sliding elements
Maintains wear resistance under continuous load
6. Proven Industrial Reliability
Widely used in OEM pump and valve manufacturing
Stable long-term performance in hydraulic systems
Applications of C83800
C83800 High-Strength Red Brass is widely used in:
Pump housings, impellers, shafts
Valve bodies, plumbing fittings, water flow components
Bushings, bearings, wear plates
HVAC components, compressor parts
Hydraulic machinery & fluid control equipment
General engineering castings & mechanical housings
Potable water supply industry
Project Case – Industrial Pump Manufacturer
Client Country: USA
Industry: Fluid Handling Systems
Material Supplied:
C83800 Bronze Pump Housing
Specification:
Sand cast + CNC finishing
Requirement:
High pressure resistance
Leak-proof performance
Wear resistance in water systems
Our Solution:
Provided centrifugal cast C83800 blanks
Optimized lead distribution for machinability
Full pressure testing + dimensional inspection
Result:
Improved pump service life by 30% and reduced leakage failure rate.
Export Experience
Exported to 40+ countries
Widely used in valve & pump manufacturing
Stable OEM supply for casting industries
Why C83800 Is a High-Performance Red Brass
C83800 performs well because of its balanced alloy system:
1️⃣ Tin (Sn)
Increases strength
Improves wear resistance
2️⃣ Lead (Pb)
Improves machinability
Enhances pressure sealing performance
3️⃣ Copper base
Ensures corrosion resistance in water systems
👉 This makes it ideal for hydraulic and fluid-control systems
Processing Characteristics
Excellent sand casting performance
Good centrifugal casting behavior
Easy CNC machining after casting
Suitable for complex pump and valve shapes
C83800 vs C83600 vs C84400
| Property | C83600 | C83800 | C84400 |
|---|---|---|---|
| Strength | Medium | High | Medium-High |
| Machinability | Good | Very Good | Good |
| Pressure Tightness | Medium | Excellent | Good |
| Casting Quality | Good | Very Stable | Good |
| Application Focus | General plumbing | Pumps & valves | Industrial fittings |
👉 Conclusion:
C83800 is the best choice for high-strength, pressure-tight industrial cast components.
Inspection & Quality Assurance (for Global Buyers)
Chemical Analysis: Spectrometer for every heat
Mechanical Test: HB hardness, tensile test (optional)
Casting Integrity:
X-ray inspection
Ultrasonic testing (UT)
Pressure-tightness tests
Dimensional Accuracy: CMM, calipers, micrometers
Surface Quality: Ensure no cracks, porosity, inclusions
Certificates: ASTM-compliant MTC (EN10204 3.1), SGS/TÜV/BV available
Product Delivery Standards
Seaworthy wooden cases, fumigation-free pallets
Clear heat numbers + full material traceability
OEM machining + custom packaging available
Global shipping: FOB / CIF / CFR / EXW
Fast delivery from China factory to worldwide ports
Xi'an Dongmeng Steel Co.,Ltd
Professional Supplier of C83800 Red Brass / Bronze Castings & CNC Machined Components
Our address
Room 4107, Runfeng Building, Sanqiao New Street, Weiyang District, Xi'an City, Shaanxi Province
Phone Number
+86 15769214734
FAQ
Q1: What makes C83800 different from C83600 or C84400?
C83800 has higher strength, more consistent mechanical stability, and better resistance to pressure-load applications.
Q2: Do you supply C83800 in continuous cast, centrifugal cast, and sand cast forms?
Yes, we supply all casting methods, depending on the project requirement.
Q3: Is C83800 suitable for potable water systems?
Yes. It offers excellent corrosion resistance and is widely used in plumbing fittings and valve components.
Q4: Can you manufacture custom machined parts?
Absolutely-send us your drawings or samples, and we offer full CNC machining service.
Q5: What are your typical lead times?
Stock sizes: 3–7 days
Machined parts: 7–20 days
Custom castings: based on complexity
Q6: Do you accept third-party inspection?
Yes-SGS, TÜV, BV inspections are supported.
Q7: What is your MOQ?
Small orders are welcome; custom castings depend on the mold and design.
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