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

Shandong Kaian Pipe Industry Co., Ltd. is a large-scale enterprise that produces and sells seamless steel pipes, thick-walled seamless pipes, precision steel pipes, straight seam steel pipes, hot-dip galvanized steel pipes, plastic-coated steel pipes, round steels and alloy steel plates. Seamless Steel Tube Plant, Tianjin Big Seamless Steel Tube Plant, Baotou Steel Tube Plant, Chengdu Seamless Steel Tube Plant, Metallurgical Seamless Steel Tube Plant Group, Baosteel Pipe Plant) and other excellent steel pipe factories, the above corporate legal persons are shareholders Form partner. Since its inception, we have been adhering to the business policy of “survive by quality, develop by product, cooperate with credit, and win customers with service”. Under the guidance of this business policy, the company sells and distributes as a general agent all the year round. : Tianjin Seamless Steel Tube Plant, Chengdu Pangang, Baotou Steel, Metallurgical Steel, Baosteel, Anshan Iron and Steel and other major steel mills seamless pipe, stainless steel seamless steel pipe and alloy pipe. The company has a modern large open-air library and indoor library, prepared There are more than 27,000 tons in stock. The company has advanced cold-drawn seamless pipe production equipment, and high-tech employees, can customize cold-drawn seamless steel tubes of various specifications and materials. Our products are of good quality and high precision. , small tolerances, prompt delivery, welcome to order. The materials are: 10#, 20#, 45#, 16Mn, 20Cr, 40Cr, 15CrMo, 35CrMo, and the like. The implementation standards are: GB/T3639-2009 Uses: It can be used for mechanical structures, hydraulic equipment, cylinders, rollers, parts processing, automotive (motorcycle) parts, diamond thin-walled drill bits. Production range and tolerance: 10-203*1-28mm tolerance 2-10 wire

Product features: The company's cold drawn seamless precision tube, cold drawn seamless precision steel pipe without pitting, scratches, cracks, bumps and other appearance defects, the inner and outer surface is bright, the precision is much larger than the ordinary cold drawn tube, the minimum tolerance 2 silk. Therefore, it is often used in areas where high precision and finish are required to improve product quality and reduce processing costs.

The company's main products: domestic high-pressure alloy tubes, materials: A335P11, P91, P92, 15CrMoG, 12Cr1MoVG, 1Cr5Mo, Cr5Mo, Cr9Mo, 0Cr9Mo, 15CrMo, 35CrMo, 12Cr1MoV, 10CrMo910, A335P91, 1Cr2Mo, 15MnV, 37Mn5, 10Cr9Mo1VNb, 15NiCuMoNb5, 12Cr2MoWVTiB, WB36, SA106B, ST45.8-III, etc.; General carbon high-pressure boiler tube GB5310-2008 Material: 20G, 20MG, 25MG, 15MoG, 20MoG, fertilizer special tube GB6479-2000 Material: 10, 20G, Q345 , Q390, 10MoVNb, 12CrMo, 15CrMo, 12Cr2Mo, petroleum cracking pipe GB9948-2013 material: 10, 20, 12CrMo, 15CrMo, 1Cr2Mo, 1Cr5Mo; hydraulic support pipe GB/T17398-1998 material: 27SiMn, structural pipe GB/T8162-2008 materials are: 10, 20, 35, 45, 40Mn2, 45Mn2, 27SiMn, 20Cr, 40Cr, 20CrMo, 35crMo, 38CrMoAl, 50CrV, 30CrMnSi; transport liquid pipe GB/T8163-2008 material: 10, 20, Q295, Q345; oil well tubing, coupling material tube APISPEC5CT material: J55, N80 and so on.