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Detailed size range
Diameter range:
Depending on different application requirements, the diameter range of C26000 copper wire is relatively wide. For example:
Copper wire for semiconductor bonding: The diameter range is 18 microns to 50 microns (can be expanded to more than 50 microns), and the specific models are distinguished by the "HC" series.
Industrial copper wire: Common specifications include diameters of 0.5mm, 1.2mm, 1.5mm, etc., which can be customized according to requirements.
Conductor diameter: In specific wiring harness applications, the actual core conductor diameter can reach 0.52±0.02mm (in accordance with GB/T 3953-2009 standard).
Other size parameters:
For strip form (some parameters can refer to copper wire processing): thickness range 0.01-2.0mm, width 2-600mm, hardness grades include soft (O), semi-hard (1/2H), hard (H), etc.
International Standards
The international standards for C26000 copper wire cover multiple systems, including:
American Standards:
ASTM B36: Standardizes the mechanical properties and chemical composition of cold-drawn bars, wires and profiles of brass (C26000).
ASTM B134: General standard for brass wire (such as the retaining ring parts mentioned in
).
ASTM F468: Standards involving non-ferrous metal bolts and screws, indirectly reflecting the processing performance of C26000.
International Organization for Standardization (ISO):
The corresponding grade is CuZn30, which is classified in the copper-zinc alloy system of ISO standards.
European Standards:
DIN EN 1652: The corresponding grade is CW505L (the original DIN standard is CuZn30).
EN 12164: Standardizes the chemical composition and mechanical properties of copper-zinc alloy processing materials.
Chinese Standards:
GB/T 2059-2000: specifies the chemical composition and performance requirements of C26000 brass strip, and some parameters can be extended to copper wire applications.
GB/T 3953-2009: specifies the conductor diameter and elongation requirements for soft round copper wire (such as wire harness applications in).
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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