Bearing steel pipe refers to hot-rolled or cold-rolled (cold-drawn) seamless steel pipe for the manufacture of ordinary rolling bearing rings. The outer diameter of the steel pipe is 25-180 mm, and the wall thickness is 3.5-20 mm, which is divided into ordinary precision and high precision. Bearing steel is steel used to make balls, rollers and bearing rings. Bearings are subjected to extreme pressure and friction during operation, so bearing steels are required to have high and uniform hardness and wear resistance, as well as high elastic limits. The uniformity of the chemical composition of the bearing steel, the content and distribution of non-metallic inclusions, and the distribution of carbides are all very strict, and it is one of the most demanding steel grades in all steel production.
Product Name: Cold drawn seamless pipe, precision seamless pipe, large diameter precision steel pipe
Cold drawn precision tube, cold drawn seamless steel pipe, precision steel pipe of various materials - Kai'an Pipe Industry
1. Precision steel pipe: Precision steel pipe is a kind of high-precision steel pipe material after cold drawing or hot rolling. Because the inner and outer walls of precision steel pipes have no oxide layer, high pressure and no leakage, high precision, high smoothness, no deformation of cold bending, flaring, flattening and no cracks, they are mainly used to produce pneumatic or hydraulic components such as cylinders or The cylinder can be a seamless tube or a welded tube.
Mainly produced steel pipe grades: 10, 20, 35, 45, 40cr, gcr15, 42crmo, etc.
Other grades of precision seamless steel tubes are also available upon negotiation.
National standard:
National standard for precision steel pipes; GB/T699-2008, national standard for precision steel pipes; GB/T3639-2008, and may also have precision steel pipes for GB/T8162-2008 construction.
Precision steel tube European standard: DIN2391
Basic use:
Precision steel pipes are widely used in automobiles, motorcycles, electric vehicles, petrochemicals, electric power, ships, aerospace, bearings, pneumatic components, medium and low pressure boilers, etc., and can also be applied to steel sleeves, bearings, hydraulics, machining and other fields!
Second, the cold drawn seamless pipe: cold drawn steel pipe by drawing, extrusion, perforation and other methods produced on the entire surface of the steel pipe without joints. It is a circular, square, rectangular steel with a hollow section and no seams around it. The steel tube or the solid tube blank is made into a capillary tube by perforation, and then made by cold dialing.
Shandong Kai'an Pipe Industry has six LG20 finishing mills, two LG30 finishing mills, two LG50 finishing mills, one LG60 finishing mill, one LG150 finishing machine and a large hydraulic press. Can be customized for users 10#, 20#, 35#, 45#, 16Mn, 20Cr, 40Cr, Gcr15... and other materials of cold drawn seamless pipe, precision steel pipe, precision bright tube, non-standard seamless steel pipe, professional production The steel pipe is connected with the sleeve steel pipe and the high-precision steel pipe is processed. The price is low and the quantity is large. According to the customer's request and equipped with 13 meters pickling, phosphating, saponification pool several. External pickling passivation seamless steel pipe. Good service, good quality and fast delivery.
Executive standard: GB3639-2000
Specifications: outer diameter 10-245mm wall thickness 08-70mm
