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Application of 4140 chrome bar
4140 is a 1% Chromium - Molybdenum high tensile steel supplied in the hardened and tempered, cold drawn or turned, precision ground, polished, chrome plated and final polished condition, with a typical base metal tensile strength of 850 - 1000 Mpa, plus a typical hard chrome plated surface hardness of HV 1000 - 1150.Characterised by an extremely smooth surface finish with excellent wear and corrosion resistance, coupled with a base material giving high strength and good impact properties, plus good machinability. 4140 hard chrome plated bar is used extensively by the hydraulic and pneumatic industries, and is employed by other industry sectors for a wide range of applications requiring higher strength. Typical applications are: Agricultural Equipment, Hydraulic Cylinders , Hoists, Jacks and other Lifting equipment, Machine Tools, Mining and Earth Moving Equipment, Pumps, Valves, Waste Disposal Transport and Equipment etc. Anbao Hydraulic is a professional manufacturer in
Cold working method for cold drawn seamless steel pipe
Cold working method for cold drawn seamless steel pipe The cold working method of seamless steel pipe , includes cold rolling and cold drawing method to produce a complete set of equipment for the pipe. It is a unit for deep processing of hot rolled pipe or welded pipe. The production characteristics of cold-rolled precision steel pipe processing pipe unit is that the pipe material is usually subjected to multiple cold deformations and work hardening from the input to the finished product. Therefore, the whole production process consists of multiple preparation processes and deformation processes, and has the characteristics of reciprocating cycle. This will involve many processes, long production cycle, large metal consumption, low production efficiency, high precision, bright and smooth inner and outer surfaces, no peeling, no cracks, no pits. Different processing methods and corresponding auxiliary processes are selected according to the processing properties of the metal, the p
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