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Detailed size range
ASTM standard (USA)
Outer diameter: 3mm~200mm
Wall thickness: 0.5mm~10mm
Conforms to ASTM B135 standard and is suitable for general use. The outer diameter can be extended to 400mm and the wall thickness is up to 42.5mm, involving special customization or specific application scenarios.
JIS standard (Japan)
Outer diameter: 3mm~200mm
Wall thickness: 0.5mm~10mm
Conforms to JIS H3300 standard.
EN standard (Europe)
Outer diameter: 6mm~267mm (general standard EN12449)
Wall thickness: 0.5mm~10mm.
In addition, the maximum outer diameter of C26000 copper tube in Chinese standard is usually 30mm, while the US standard can reach 105mm and the EU standard is 64mm. Customized service is provided, the outer diameter can reach 910mm, the wall thickness is 0.2mm~120mm, and the length can be freely cut.
International Standards
ASTM B135: General standard for seamless brass tubes, covering C26000 material.
JIS H3300: Japanese Industrial Standard, which specifies the seamless tube specifications of C2600 (i.e. C26000).
EN12449: European general seamless round tube standard, applicable to copper alloy tubes with similar performance.
ASTMB280, AS/NZS1571: Standards for specific applications such as air conditioning and refrigeration.
Performance and Features
Corrosion resistance: performs well in the atmosphere, fresh water and partially reducing environments, suitable for condensers, evaporators, etc.
Processability: supports hot and cold processing, welding, tinning and other processes, and has no tendency to stress corrosion.
Physical properties: density 8.7g/cm³, high thermal conductivity, stable strength at low temperatures, and excellent antifreeze performance.
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)
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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