Copper Alloy
Your Leading Copper Alloy Supplier
Xi'an Baohui Steel Co., Ltd. is located in the ancient capital of China, Xi'an. We are a leading manufacturer and supplier of specialty metal materials. Our focus is on providing high-performance stainless steel, titanium alloys, copper alloys, aluminum alloys, and nickel alloys for our customers. Each batch undergoes chemical analysis, mechanical testing, and non-destructive testing to ensure internal and external quality.
Why Choose Us?
Advanced Production Facilities
We operate with modern heating furnaces, cold-rolling and cold-drawing mills, hot-extrusion presses, annealing lines, and full pickling/passivation systems to ensure stable and accurate tube and alloy processing.
Strict Quality Control
All finished tubes and alloy products are tested using eddy-current, ultrasonic, and direct-reading spectrometry to guarantee consistent mechanical performance and full compliance with customer specifications.
Large Capacity and Fast Delivery
With an annual capacity of over 3 million tons and a well-organized stock system, we can quickly support customized orders and meet tight delivery schedules.
Strong Production Market
Our products are exported to over 100 countries, including major markets in the US, Germany, France, Japan, Korea, Brazil, Italy, Turkey, and Southeast Asia, earning long-term trust from global industrial buyers.
Parameters of Copper Alloy
|
Parameter |
Specification Range |
|
Available Forms |
Rod, Bar, Hex Bar, Square Bar, Wire |
|
Diameter |
0.5mm - 300mm |
|
Lengths |
1000mm - 6000mm (Custom lengths available) |
|
Temper Conditions |
Annealed (AT), Quarter Hard (1/4H), Half Hard (1/2H), Full Hard (H), Age Hardened (TF00) |
|
Standards |
ASTM B196, ASTM B441, AMS 4533, AMS 4650, ASTM B883 |
Types of Copper Alloy
C17300 Beryllium Copper
C17300 Beryllium Copper (also known as Alloy M25) is a high-performance copper alloy containing 1.80-2.00% beryllium with added lead for improved machinability.
C68700 Aluminum Brass
C68700 aluminum brass, with its 76%-79% copper matrix and environmentally friendly low-arsenic formula, combines 23% electrical conductivity with high strength of 550-700 MPa.
C12200 Copper Alloy
C12200 copper is a phosphorus-deoxidized non-arsenical copper containing 0.015-0.040% phosphorus, which acts as a deoxidizing agent during melting and processing.
C17500 Beryllium Copper
Beryllium copper, also known as beryllium-cobalt copper, is a high-performance copper-based alloy whose core components are copper, beryllium, and cobalt.
Physical Properties of Copper Alloy
|
Property |
Value |
|
Electrical Conductivity |
22-28% IACS |
|
Thermal Conductivity |
105 W/m·K |
|
Density |
8.25 g/cm³ |
|
Melting Point |
866-982°C |
|
Coefficient of Thermal Expansion |
17.8 × 10⁻⁶/°C |
|
Machinability Rating |
80% |
Copper and its alloys are utilized in a wide array of applications, including:
• Power transmission lines
• Architectural applications
• Cooking utensils
• Spark plugs
• Electrical wiring, cables, and busbars
• High conductivity wires
• Electrodes
• Heat exchangers and refrigeration tubing
• Plumbing
• Water-cooled copper crucibles
Customization Options
|
Material Type |
Pure copper, Brass, Copper-Nickel alloy or other copper alloy grades |
|
Outer Diameter (OD) & Wall Thickness (WT) |
Custom OD and WT per buyer specification |
|
Length / Cut-to-Length or Standard Length |
Custom cut-to-length or standard lengths (e.g. up to 6–12 m) |
|
Surface Finish |
Mill finish / Polished / Annealed / Cleaned / Coated / Customized finish on request |
Heat Treatment Methods of Copper Alloy
① Homogenizing
Homogenizing treatments address segregation and coring issues commonly found in cast and hot-worked materials, particularly those containing tin and nickel. This process proves especially critical for tin bronzes, silicon bronzes, and copper nickels, where diffusion occurs more slowly than in other copper alloys. High-tin phosphor bronzes, containing more than 8% tin, require particular attention due to their tendency toward extreme segregation. These materials typically undergo homogenization at approximately 760°C to enhance strength and ductility before cold rolling operations.
② Annealing
Annealing serves to soften cold-worked metal through recrystallization. The process involves two primary approaches:
Light anneal: Performed slightly above the recrystallization temperature Soft anneal: Conducted several hundred degrees higher, just below rapid grain growth onset.
Several factors influence annealing effectiveness, including:
• Method of heating
• Furnace design and atmosphere
• Workpiece geometry
• Time and temperature parameters.
Modern copper alloys containing finely distributed second phases, maintain fine grain structures at elevated temperatures until second-phase dissolution occurs.
Our Certificates
① Raw Material Inspection – All incoming materials are checked for quality and specification accuracy before production.
② In-Process Inspection – Critical production stages are monitored to maintain stable processes and consistent product quality.
③ Final Product Inspection – Finished products are tested to verify performance and ensure compliance with customer requirements.
④ Pre-Shipment Inspection – Dimensions, surface quality, packaging, and documents are checked prior to dispatch.
⑤ We welcome inspections from any accredited third-party agency upon request.
⑥ We provide cutting, machining, surface finishing, and heat-treatment services to support customized orders.
Packaging & Transportation
Packaging Details:The standard export packaging, plastic film, or craft paper is covered. Awooden case or wooden pallet is adopted to protect products from damage during delivery. In addition, clear labels are tagged on the outside of the packages for easy identification of the products and quality information.
