GB T3 copper plate manufacturers, imports C1221 copper plate suppliers 
 Directory 
 1 summary 
 (2) Material Name 
 (3) material properties 
 (4) the scope of 
 5 The main chemical composition 
 6. Mechanical properties 
 7 heat treatment specification 
 8 implementation of standards 
 9 certification system 
 10 information 

 Key words: T3 copper mill, C1221 copper plate manufacturers, T3 copper plate supply, C1221 copper plate supplier, T3 copper plate wholesale C1221 copper plate wholesalers 
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 T3 copper plate, 1 GB Overview 
 The copper plate was purple and the name. It is not necessarily pure copper, and sometimes adding a small amount of deoxidation elements or other elements to improve the material and performance 
 And, therefore, classified as a copper alloy. Chinese copper plate processing material composition can be divided into: ordinary copper plate (T1, T2, T3, T4,), oxygen-free copper (TU1, TU2 and high-purity, vacuum oxygen-free copper), deoxidized copper (TUP, TUMn,), add a small amount of special copper alloy elements (arsenic copper, tellurium copper, silver, copper) into four categories. Conductivity and thermal conductivity of the copper plate is second only to silver, widely used to produce electric and thermal conductivity equipment. The copper plate has good corrosion resistance in the atmosphere, sea water and some non-oxidizing acid (hydrochloric acid, sulfuric acid), alkali, salt solution and a variety of organic acids (acetic acid, citric acid), for the chemical industry. T3 copper plate containing less impurities, slightly higher than the T2. Up to 99.70% purity. Industrial pure copper T2 copper plate, inexpensive, and affordable. 

 Imports C1221 copper plate material name 
 C1221 copper plate, also known as the 2nd copper, industrial metal copper, the purity higher than 99.5%, was purple, also known as pure copper. It has excellent electrical conductivity, thermal conductivity, corrosion resistance and welding properties, electrical properties at room temperature after the silver. Processing copper plate, which was divided into four grades, the first, second, third and fourth copper plate, purity, respectively 99.95%, 99.90%, 99.70% and 99.5%; that the so-called T1, T2, T3, T4. 

 3 GB T3 copper plate features 
 Good electrical conductivity, thermal conductivity, corrosion resistance and workability, welding and brazing. Electric and thermal conductivity less impurities containing lower amount of oxygen has little effect on the conductivity, thermal conductivity, and processing performance, but easy to cause the "hydrogen disease" inappropriate at high temperatures (> 370 ° C) reducing atmosphere in the processing (annealing, welding, etc.) and use. Often contain oxygen, sulfur, lead, arsenic, bismuth, phosphorus and other impurities. With excellent electrical conductivity, thermal conductivity, moderate mechanical properties. Can be used for the preparation of a copper alloy and the alloying elements. Widely used in the field of electrical electrical conductivity, thermal conductivity material. Reverberatory furnaces and other pyrometallurgical smelting of copper, refined copper by electrolysis. Preparation or sources: nature of the copper are chalcopyrite, chalcocite, cuprite and malachite, but are low grade. Blister copper can go sulfur sulfide ore calcined with a small amount of silica and coke eutectic crude copper, and then restore the last electrolysis refining derived. Trace impurities in the copper plate on the conductivity of copper, thermal conductivity have a serious impact. Titanium, phosphorus, iron, silicon, significantly reducing electrical conductivity, such as cadmium, zinc has little effect. Such as oxygen, sulfur, selenium, tellurium copper in solid solution is very small, and copper to generate brittle compounds, not conductive, but can reduce the processing of plastic. Ordinary copper plate is heated in a reducing atmosphere of hydrogen or carbon monoxide, hydrogen or carbon monoxide easy grain boundary cuprous oxide (of Cu2O), produce high-pressure water vapor or carbon dioxide gas, can copper rupture. This phenomenon is often referred to as the "hydrogen disease" of copper. The oxygen is harmful to the weldability of copper. Bismuth or lead, and copper to generate a low melting point eutectic copper heat brittle; brittle bismuth showed a film-like distribution at the grain boundaries, and also allows the copper cold crisp. Phosphorus can significantly reduce the conductivity of copper, but can increase the mobility of the copper solution to improve the weldability. The amount of lead, tellurium, sulfur to improve machinability. 
 Light weight, good thermal conductivity, high strength and low temperature. Commonly used in the manufacture of heat transfer equipment (such as condensers, etc.). Also used for oxygen equipment in the assembly of low-temperature piping. Small diameter copper pipe commonly used to transport the pressure of the liquid (such as lubrication systems, hydraulic systems, etc.) and used as instruments piezometer tube. 
 Brass with sturdy, corrosion-resistant properties, while the modern contractor water pipe in all residential housing, heating, refrigeration piping installation preferred. 
 Copper is an economy. Brass easy processing and connection to the installation, you can save materials and the total cost, stability, reliability, eliminating the need for maintenance. 
 2, copper is lightweight. Twist of the same inner diameter threaded pipe, brass does not need the black metal thickness. When you install the brass delivery costs are smaller, easier to maintain a smaller footprint. 
 3, copper can change shape. Copper pipe can be bent or distorted, it can often be made of elbows and fittings, smooth bend to allow the bending of copper tube to any angle. 
 4, copper is easy to connect. 
 5, copper is safe. No leakage, no combustion, no toxic fumes and corrosion resistance. 


 Imports C1221 copper plate the scope of application 
 Pink and shiny metal, hard and tough, rich ductility and high thermal and electrical conductivity. 
 Solution: do not dissolve in hydrochloric acid or dilute sulfuric acid. Dissolved in nitric acid and hot concentrated sulfuric acid. The Alkalines corrosion. 
 Uses: used for making copper wire, copper electrodes, electroforming panels, switches, chemicals, alloys (brass, bronze, German, copper, copper-nickel alloy, etc.), as well as plating, etc. Has excellent electrical conductivity, thermal conductivity, ductility and corrosion resistance. Thermal conductivity equipment is mainly used for the production of generators, bus, cable, switch gear, transformers and other electrical equipment and heat exchangers, piping, solar heating devices, flat-plate collector. Copper alloys are divided into brass, bronze, copper-nickel alloy three categories. Another copper plate with a high degree of electrical conductivity, thermal conductivity, ductility and corrosion-resistant sex, is used in the manufacture of heat transfer equipment (such as condensers, etc.), as well as high-precision hydraulic test system of choice. Because of these excellent features, it is widely used in the production of generators, bus, cable, switch gear, transformers and other electrical equipment and piping, heat exchangers, solar heating devices and flat-plate collector thermal conductivity equipment. 

 The main chemical composition of the T3 copper plate, 5 GB 
 Copper + silver CuAg: ≥ 99.70 
 Phosphorus P: ≤ 0.001 
 Tin of Sn: ≤ 0.002 
 Zinc of Zn: ≤ 0.005 
 Lead Pb: ≤ 0.005 
 Lead Pb: ≤ 0.005 
 Ni - Ni: ≤ 0.005 
 Fe: ≤ 0.005 
 Beryllium of Sb: ≤ 0.002 
 Sulfur S: ≤ 0.005 
 Arsenic of As: ≤ 0.002 
 Bi Bi: ≤ 0.001 
 Oxygen O: ≤ 0.06 
 Note: ≤ 0.3 (impurities) 

 6. Imports C1221 mechanical properties of copper plate 
 Tensile strength σb (MPa): ≥ 295 
 Rockwell hardness: (HRF) ≥ 65 
 Elongation δ10 (%): ≥ 5 
 The elongation δ5 (%): ≥ 10 
 Note: Bars longitudinal room temperature tensile mechanical properties 
 Sample size: diameter or edge distance of 5 to 40 

 7 GB T3 copper plate heat treatment specifications 
 The thermal processing temperature of 900 ~ 1050 ℃; annealing temperature of 500 ~ 700 ℃; cold hardening copper recrystallization starting temperature of 200 ~ 300 ℃. 

 Imports C1221 copper plate the implementation of standards 
 GB system: GB / T 2059-2000 import system: JISH 3100 

 9 GB T3 copper board certification system 
 ISO9001-2000 quality certification, SGS environmental protection certification standards. 

 10 imports C1221 copper plate information 
 T3 copper, copper row, T3, T3 copper plate with a T3 copper tube copper rods T3 T3 copper wire 

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