1. What is the difference between C11000, C12000, and C12200 copper sheets?
Answer:
C11000 (ETP Copper): 99.9% pure copper, excellent electrical and thermal conductivity, widely used in electrical and industrial applications.
C12000 (Oxygen-Free Copper, OFC): 99.95% purity, very low oxygen content, better conductivity and corrosion resistance, suitable for high-end electrical components.
C12200 (High-Conductivity Copper): 99.9% purity with extra strict conductivity requirements, ideal for electrical contacts, busbars, and precision instruments.
2. What are the main applications of 99.90% red copper sheets?
Answer:
They are commonly used in electrical equipment, transformers, heat exchangers, roofing, plumbing, decorative projects, and industrial machinery. High purity ensures excellent conductivity and long-term performance.
3. Can the copper sheets be customized in size and thickness?
Answer:
Yes, copper sheets can be cut, rolled, or polished to meet specific thickness, width, length, and surface finish requirements. Most suppliers offer customized sizes for wholesale orders.
4. What factors affect the wholesale price of copper sheets?
Answer:
The price is mainly influenced by:
Copper grade and purity (C11000, C12000, or C12200)
Sheet thickness and dimensions
Market copper prices
Order quantity (larger orders usually get better rates)
5. How should 99.90% red copper sheets be stored to maintain quality?
Answer:
Copper sheets should be stored in a dry, ventilated area, away from moisture and corrosive chemicals. They should be stacked properly to avoid scratches or dents. Slight surface oxidation can occur but can be removed with a polishing agent before use.
