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Detailed size range
C26000 copper rods have various specifications, and the specific sizes vary depending on the processing method:
Diameter range:
Round rods: Common diameter 6-130mm (ASTM B36 standard), some suppliers provide a wider customization range (0.2mm-300mm).
Hexagonal rods: diameter 5-60mm, some can reach more than 60mm.
Square rods: 4-60mm, some extend to more than 60mm.
Length range: Standard length 1-6 meters, can be customized to 30 meters.
International standards
C26000 follows multi-national standard systems, mainly including:
ASTM standards:
ASTM B36 (general standard for rods).
ASTM B134 (drawn rods), B135 (tubes), B111 (plates), etc.
Chinese standards: Corresponding to the H70 grade in GB/T.
International standards: ISO and European standards (such as CDA260, CuZn30).
Other standards: DIN (Germany), JIS (Japan), etc.
C26000 is a copper-zinc binary alloy (ordinary brass), the main components are:
Copper (Cu): 68.5%~71.5%
Zinc (Zn): Balance (about 28.5%~31.5%)
Impurity elements (total ≤0.3%):
Lead (Pb) ≤0.03%~0.07%
Iron (Fe) ≤0.05%~0.10%
Bismuth (Bi) ≤0.002%
Other trace elements such as phosphorus (P) and beryllium (Sb) are extremely low in content.
Mechanical properties vary significantly depending on the material state (annealing, cold working, etc.):
1. Annealed state (soft state)
Tensile strength (σb): 330-372 MPa or 340-460 MPa
Yield strength (σ₀.₂): 110-158 MPa or 70-230 MPa
Elongation (δ): ≥25% (some data show that it can reach 54-66%)
Hardness (HV): 85-145 or Rockwell B hardness 53-93
2. Cold work hardening state (such as H08 superhard state)
Tensile strength (σb): up to 830 MPa or 890 MPa
Yield strength (σ₀.₂): 450 MPa
Elongation (δ): as low as 3%
Other parameters
Elastic modulus (E): 110 GPa
Poisson's ratio: 0.31～0.34
Shear strength: 220～390 MPa
Key performance characteristics
Processing performance:
Excellent cold and hot processing performance, suitable for complex forming such as deep drawing and molding.
Contains a small amount of lead (0.03-0.07%) to improve machinability and reduce tool wear.
Corrosion resistance:
Stable in general atmosphere, fresh water and sea water, but prone to stress corrosion cracking, annealing treatment is required to eliminate internal stress.
Easy to oxidize and dezincify at high temperature, and protective atmosphere processing is required.
Physical properties:
Density: 8.53 g/cm³
Melting point: 899～955°C
Electrical conductivity: 28%～37% IACS (about 1/3 of pure copper)
Thermal conductivity: 120～138 W/(m·K)
Production process and product advantages of C26000 copper rod:
1. Production process
Raw material smelting
Use scrap copper, electrolytic copper, zinc ingots and other raw materials, heat to about 1100℃ in an electric furnace to melt into liquid. During the smelting process, slag remover needs to be added to remove impurities, and the alloy ratio is adjusted through component detection.
Molding process
Extrusion method: The mainstream process in China adopts large-tonnage reverse extrusion technology (such as 38MN extruder), and improves product density, surface finish and strength through continuous casting and extrusion.
Continuous casting: The "submerged liquid transfer-horizontal continuous casting" technology is used to achieve multi-head multi-flow continuous production, which is more than 10 times more efficient than traditional processes and reduces smoke emissions.
Subsequent processing
Including polishing, straightening, cutting and other steps. Some companies combine grinding, cleaning, drying and other processes to ensure the quality of finished products.
2. Product advantages
Excellent mechanical properties
Tensile strength ≥295 MPa, elongation ≥50%, both high strength and good plasticity, suitable for hot and cold processing.
Wide hardness range (O to SH), customizable according to needs.
Excellent processing performance
Excellent cutting performance, suitable for high-precision parts processing on automatic lathes and CNC machine tools.
Excellent hot forming performance (750-830℃ hot processing temperature), outstanding deep drawing performance.
Outstanding corrosion resistance
Stable in seawater and slightly corrosive media, especially suitable for marine environments.
Anti-zinc removal properties enhance service life.
Environmental protection and safety
Complies with the ROHS directive and provides lead-free and environmentally friendly models (impurity lead ≤0.03%).
Passed ISO9001 and ISO14000 certification, the production process is green and controllable.
Wide range of applications
Covering heat exchangers, ship pumps and valves, automotive parts, electronic components, building pipelines and other fields. Flexible specifications (diameter 0.2-300mm, length can be customized).
Q1:Do you provide samples? Is it free or extra?
A1:Yes, we can provide samples free of charge and the customer will pay the freight.
Q2:What if I don't have export experience ?
A2:We have reliable forwarder agent which can ship items to you by sea/air/Express to your doorstep. Any way, we will help you choose the most suitable shipping service.
Q3:How long is your lead time?
A3:If it is in stock, it is usually 5-10 days. Or, if there is no inventory, 15 days, depending on the quantity.
Q4:What are your terms of payment?
A4:30% T/T deposit in advance, 70% T/T balance within 5 days after B/L copy, 100%.Irrevocable L/C at sight, 100% Irrevocable L/C after receive B/L 30-120 days, O/A.
Q5:How is your technical support?
A5:We provide lifetime online support through Whatsapp/ Skype/ Wechat/ Email. Any problem after delivery, we will offer you call anytime.
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