7.62/5.56/12.7/14.5 Gilding Metal Clad Steel Bimetallic Composite Bullut Case Cartridge Cups

Copper-steel composite material temperature and pressure-penetration composite technology is a new technology emerging in the field of domestic metal composite strip materials, in addition to the high strength, good heat resistance, thermal stability, plasticity and corrosion resistance common to composite materials In addition to the characteristics of resistance and abrasion resistance, in the field of  bullet manufacturing, there are also the advantages of high yield and high dimensional accuracy, which are beneficial to improve the quality of bullets; the composite material has good consistency, thereby ensuring the consistency of the bullet and the shell; One batch is heavy and can be processed continuously, which greatly improves the production efficiency of bullets. The surface quality is excellent, comparable to pure copper; the brass on the surface of the copper-steel composite material also has a lubricating effect, which can reduce the impact on the barrel when shooting The wear and tear of the barrel and rim. It has been widely used  such as bullet shells and detonators. The sales network of copper-steel composite materials has covered the world and won unanimous praise from many customers.

The company produces and sells cups of various calibres and raw materials. According to the raw material grades, it can be divided into H90/H70 brass cups, F11/F18 copper clad steel cups, F11/F18 steel cups, etc. According to the caliber of the bomb, it can be divided into 5.56mm, 7.62mm, 9mm, 12.7mm, 14.5mm and so on. Due to the different bomb-making processes in various countries, the requirements for the same caliber of tongs are also different, the company can customize molds and products according to the drawings and technical requirements provided by customers.  

Product introduction
i).Chemical Composition

Grade	Chemical composition of steel strip
	C	Si	Mn	P	S	Ni	Cr	Cu	Als
	%	%	%	%	%	%	%	%	%
F11	≤0.11	≤0.06	0.30-0.55	≤0.02	≤0.01	≤0.3	≤0.15	≤0.2	0.02-0.1
F18	0.11-0.19	≤0.06	0.35-0.55	≤0.02	≤0.01	≤0.3	≤0.15	≤0.2	0.02-0.1
SPHC	≤0.15	≤0.05	≤0.6	≤0.035	≤0.035	-	-	-	≥0.010

 

Grade	Chemical composition of copper strip
	Cu+Ag (min)	P	Bi	Sb	As	Fe	Pb	S	Zn	Total impurities
	%	%	%	%	%	%	%	%	%	%
H90	88-91	-	-	-	-	≤0.1	≤0.02	-	allowance	≤0.2

ii)7.62mm copper clad steel cups


iv)Other products



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