Special air-conditioned yellow brass, the Dongguan C11000 copper coil, high-precision H80 brass rod preferred Dongguan Berndt Metal Materials Co., Ltd.! 

 (A) Introduction of copper alloy: 

 Some of the alloying elements (such as zinc, tin, aluminum, beryllium, manganese, silicon, nickel, phosphorus, etc.) in pure copper, copper alloy. Copper alloy with good electrical conductivity, thermal conductivity and corrosion resistance, but also has higher strength and wear resistance. 

 Depending on the composition of different copper alloys are divided into such as brass and bronze. 

 A. Brass and zinc as major alloying elements of copper alloy. In accordance with the chemical composition, brass is divided into ordinary copper and two special brass. 

 (1) ordinary brass brass is a copper-zinc binary alloy. Good plasticity, suitable for the manufacture of plates, rods, wire rods, tubes and deep drawing parts, such as condenser, heat pipes and mechanical, electrical parts. The average copper content of 62% and 59% brass casting, as cast brass. 

 (2) special brass in order to obtain higher strength, corrosion resistance and good casting properties, copper-zinc alloy, aluminum, silicon, manganese, lead, tin and other elements, the formation of a special brass. Such as brass, lead, tin, brass, aluminum, brass, silicon brass, manganese brass. 

 Leaded brass, excellent cutting performance, good wear resistance, widely used in the manufacture of watch parts, by casting the production of bearings and bushings. The corrosion resistance of tin brass is widely used in the manufacture of ship parts. Aluminum brass aluminum can improve the strength and hardness of the brass, the atmospheric corrosion resistance, aluminum brass used in the manufacture of corrosion-resistant parts. 

 Silicon in silicon brass copper can improve the mechanical properties, wear resistance, corrosion resistance, silicon brass is mainly used for manufacturing ship parts and chemical machinery parts. 

 Two. Bronze 

 Originally referred to the copper-tin alloy bronze, but are used in industry containing aluminum, silicon, lead, beryllium, manganese, copper alloys bronze, bronze fact tin bronze, aluminum bronze, aluminum bronze, bronze, silicon bronze , lead and bronze. Bronze is also divided into two types of pressure processing of bronze and cast bronze. 

 (1) tin bronze copper alloy with tin as the main alloying elements known as tin bronze. Industrial use of tin bronze, tin content mostly between 3% to 14%. Tin content of less than 5% tin bronze suitable for cold use; tin content of 5% to 7% tin bronze suitable for thermal processing; the tin content is greater than 10% tin bronze suitable for casting. Tin bronze in the shipbuilding, chemical, mechanical, instrumentation and industrial applications, mainly used in the manufacture of elastic components, and corrosion of bearings, bushings and other wear-resistant parts and springs, anti-magnetic parts. 

 (2) aluminum bronze aluminum as the main alloying elements of copper-based alloys known as aluminum bronze. The mechanical properties of aluminum bronze than brass and tin bronze. The practical application of aluminum bronze, aluminum content of between 5% ~ 12% of aluminum and 5% to 7% aluminum bronze plastic is best suitable for cold use. Aluminum content greater than 7% to 8%, the strength increase, but the plastic is a sharp decline, so many in the cast of the state or thermal processing. The wear resistance of aluminum bronze, and in the atmosphere, sea water, sea water carbonate and most of the organic acid corrosion resistance than brass and tin bronze. Aluminum bronze gear, bushings, worm high-strength anti-wear parts can be manufactured as well as high corrosion resistance of the elastic element. 

 (3) beryllium bronze copper alloy to beryllium as the basic element called beryllium bronze. Containing beryllium content of beryllium bronze 1.7% to 2.5%. Beryllium bronze the elastic limit, fatigue limit is very high, excellent wear resistance and corrosion resistance, good electrical conductivity and thermal conductivity, and also has the advantages of non-magnetic, and by the shock does not produce sparks. Beryllium copper is mainly used for the production of precision instruments, springs, gear clocks, high speed under high pressure bearings, bushings and electric welding electrodes, explosion-proof tools, navigation compass parts. 

 The main products are as follows: 
 A. The electronic stamping copper strip, copper-nickel alloy with JIS-C7521, C7541, C7701, C75200, C77000, C75700, C73500 
 Phosphor Bronze with JIS-C5210, C5191, C5212, C5111, C5102, CuZn4, CuZn5, CuZn6, CuZn8 
 Red copper strip (T2, TP2, C1220, TU2, C1100, C1020, C1201) 
 Beryllium copper strip JIS-C1730, C1720, C1715 
 Brass with JIS-C2680, C2720, C2600, C2700, C2801 
 Lead framework Copperbelt KFC, C194, C1921 
 B. mold electrode copper / welding electrodes, copper: chromium (Zr), copper (JMC -2 \ C18200 \ C18150) 
 Beryllium copper the JMC -4 \ C17200 \ C17500 
 Tungsten and copper (JMC -7) 
 Beryllium nickel and copper 
 Beryllium, cobalt and copper 
 C. machining copper: cutting brass, lead-free environmental brass 
 Phosphor bronze rod line 
 RF coaxial connection device beryllium copper rod JIS-C1730, C17300 

 Can provide customers with sticks, boards, belt, foil specifications, the state is H, 1/2H, 3/4H, O, EH, SH, as well as customers OEM points, the Conference Board, leveling operations, the safety stock of 300 tons, welcome customers to order 

 The Berndt metal - specializes in producing high-performance, high precision copper and copper alloy 
 JMCOPPER - Brief door wa a variety of high-performance の を trafficking factories し て high い precision the の copper と copper の alloy