GB HPb89-lead brass manufacturers, imports of C31400 leaded brass 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 

 The Keywords: HPb89, 2 brass, C31400 leaded brass, HPb89-2 brass manufacturers, C31400 leaded brass manufacturers, HPb89-2 brass suppliers, C31400 lead brass suppliers 
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 One. The GB HPb89-2 lead brass Overview 
 Brass is an alloy composed of copper and zinc, if only by copper, zinc, brass called on ordinary brass. In order to improve the performance of ordinary brass alloy, add the trace metal elements such as lead. Lead can improve brass cutting; This cutting brass is used as a clock or watch parts. Brass castings used to make valves and pipe fittings. 

 Import C31400 material name 
 HPb89-2 commonly known as the 89-2 lead brass, also known as leaded brass, the company mainly engaged in the production of agents lead brass material is as follows, 
 HPb89-2, HPb66-0.5, HPb63-3, HPb63-0.1, HPb62-0.8, HPb62-3, HPb62-2, HPb61-1, HPb60-2, HPb59-3, HPb59-2, HPb59-1, HPb58- 2.5, C3560, C3601, C4622, C3713, C3604, C3713, C31400, C3771, C3561, C3710, C2603, C31400. 
 Code: H + main (in addition to zinc) + mass fraction of copper + main add the element mass fraction and element symbols + and the other elements of the mass fraction of. 
 Such as: HPb89-2 copper mass fraction of 89%, with main plus elements such as lead mass fraction of 2% margin for zinc lead brass. 

 3 GB HPb89-lead brass features 
 Lead not actually dissolve in brass, was free particle state is distributed in the grain boundary. Α and (α + β) two kinds of lead brass according to their organization. α leaded brass due to the harmful effects of lead and high temperature ductility is very low, so only cold deformation or hot extrusion. Leaded brass (α + β) at high temperature with good plasticity, can be forged. 

 Import C31400 leaded brass scope of 
 The lead is extremely important, brass and one of the most widely used complex brass, it has excellent cutting performance, wear resistance and high strength, mainly used in mechanical engineering in a variety of fittings, valves, stem bearing to keep in hot forging valve blanks, lock industry, the watch industry is the three most important market, the cost of leaded brass is an important prerequisite for its wide application and can accommodate a variety of alloying elements in the alloy composition and content requirements relaxed, laid the foundation for the comprehensive utilization of copper alloy materials. 

 The GB HPb89-2 lead brass main chemical components 
 Copper Cu: 87.5 ~ 90.5 
 Zinc of Zn: margin 
 Lead Pb: 0.8 ~ 1.9 
 Lead Pb: 0.8 ~ 1.9 
 Boron P: ≤ 0.02 
 Aluminum of Al: ≤ 0.2 
 Fe: ≤ 0.5 
 Antimony Sb: ≤ 0.01 
 Bi Bi: ≤ 0.003 
 Note: ≤ 1.0 (impurities) 

 Imports C31400 leaded brass mechanical properties 
 Tensile strength σb (MPa): ≥ 440 
 Elongation δ10 (%): ≥ 5 
 Note: The strip room temperature tensile mechanical properties 
 Sample size: thickness ≥ 0.3 

 Seven. The GB HPb89-2 lead brass heat treatment specification 
 Heat Treatment Specification: thermal processing temperature of 640 ~ 780 ℃; annealing temperature of 600 ~ 650 ℃; eliminate the internal stress of low temperature annealing temperature of 285 ℃. 

 Imports C31400 leaded brass implementation of standards 
 GB system: GB / T 2059-2000 import system: the ASTM B130, 

 9 GB HPb89-lead brass certification system 
 ISO9001-2000 quality certification, SGS environmental protection certification standards. 

 10 information imported C31400 leaded brass 
 Yellow copper and aluminum, manganese brass, nickel, lead brass tin brass Brass Rail Brass 

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