Jiaxing bearing high carbon chromium bearing steel grades, characteristics and USES

Jiaxing bearing group sales co. , LTD. , is the spot sales center of jiaxing bearing factory, specializing in HRB bearings, application in production design and related machinery has a wealth of technical experience, today we are together and our experts to learn high carbon chromium bearing steel grades, characteristics and USES. High carbon chromium bearing steel grades, characteristics and application: high carbon chromium bearing steel has high contact fatigue strength and wear resistance, many brands are all hardening steel, such as GCr15 GCr15SiMn, GCr15SiMo, GCr18Mo. But due to some bearing to the core with good toughness and need high surface hardness, thus develop the limited hardenability bearing steel, such as GCr4. ①GCr15 ( The hardening steel) GCr15 is the typical steel, high carbon chromium bearing steel after quenching and tempering of high hardness, abrasion resistance and contact fatigue strength. The hot working performance and good machinability is good, hardenability is moderate, but poor weldability. GCr15 white sensitivity is big, but when using vacuum degassing refined bearing, the defect can be eliminated. Used in the manufacture of wall thickness & le; Diameter is 12 mm, & le; 250 mm rolling bearing ring, or make diameter & le; 22 mm conical, cylindrical and spherical roller and all the size of the needle. Can also be used in the manufacture of moulds and woodworking cutting tools, measuring tool and high elastic limit, high fatigue strength of machine parts. ②GCr15SiMn（ High hardening steel) On the basis of GCr15 steel improve the content of silicon, manganese, and hardenability, elastic limit and wear resistance are better than GCr15. Produced by the use of rolling bearing temperature should not exceed 180 ℃. Used in the manufacture of wall thickness>> 12 mm, the diameter of 120 mm rolling bearing ring, diameter of steel ball> 50 mm and 22 mm diameter> conical, cylindrical and spherical roller and all size of the needle. Other USES for the same as the GCr15. ③GCr15SiMo（ High hardening steel) On the basis of GCr15 increasing silicon content, add the molybdenum. Its high hardenability and good abrasion resistance, high fatigue strength, good comprehensive performance. Suitable for large size range of the rolling bearing ring and ball, roller, etc. ④GCr18Mo ( High hardening steel) On the basis of GCr15 quality score in 0. 15% ~ 0. 25% of molybdenum, and improves the content, thus hardenability and abrasion resistance are vigilant. Can be carried out under the bainite isothermal quenching, reaching close to martensite quenching hardness and wear resistance, and the impact of the steel, the fracture toughness and bending strength are improved, and thus improve the comprehensive mechanical properties of steel and longevity. Can be made of rolling bearing ring wall thickness up to 20 mm, the size range of rolling bearing is also expanding. ⑤GCr4 ( Restrictions on hardening steel) GCr4 is low hardenability rolling bearing steel, with volume heating and surface hardening after tempering, has the GCr15 bearing steel hardening type and the performance of the low carbon alloy carburizing steel. After quenching on the surface of high hardness, surface patience good resistance, fatigue resistance performance is good, the heart of 35 ~ 40 HRC hardness, good toughness, impact resistant. Mainly used in the manufacture of different sizes, from small load of rolling bearing ring and roller. If you are interested in the above jiaxing bearing factory introduction of HRB bearing or have any questions, please click on contact us page on the right side of the online customer service, or call: 4006578186, jiaxing bearing retail center you full thoughtful procurement consultant. - - - - - - - - - - - - - - - - - - - - - - - - - - Editor: jiaxing bearing sourcing consultant LTD. All rights reserved, Jiaxing bearing factory) Reprint please indicate the source