Kunshan Meiyaxing Hardware Machinery Co., Ltd. is a service-oriented enterprise specializing in the sales and operation of CNC cutting tools. We provide tungsten carbide end mills, end mill inserts, turning inserts, grooving and parting inserts, drilling and boring inserts, multi-functional inserts, threading inserts, and other indexable inserts, along with matching tool holders and tool holders. We have established long-term and stable strategic partnerships with well-known professional manufacturers of high-efficiency tungsten carbide end mills. The company possesses advanced production equipment from Swiss ROLLOMATIC, German WALTER, and Japanese MAKINO SEIKI, as well as German ZOLLER-GENIUS 3S and American PG... With 1000 and other testing equipment, relying on our services and operations, and guided by strong R&D and production, we solve various cutting tool problems for processing and manufacturing enterprises. We aim to become a professional partner providing comprehensive cutting tool solutions and cost optimization services, focusing on optimizing product processing costs to achieve mutual benefit and common development.
Quenched steel refers to steel materials that have undergone quenching treatment, transforming their microstructure into martensite and achieving a hardness of HRC50 or higher. When the hardness is further increased to HRC60, the material exhibits unique performance advantages and has irreplaceable application value under specific working conditions.
I. Core Advantages of HRC60 Quenched Steel
High Hardness and High Strength Combined. When the hardness of quenched steel reaches HRC50~60, the strength can reach σb=2100~2600MPa, with both hardness and strength reaching the highest grade in the material classification-9a. High hardness means excellent resistance to scratches and indentations, while high strength ensures that parts are not easily plastically deformed under heavy loads.
Excellent Wear Resistance. Hardness is a crucial factor in ensuring wear resistance. HRC60 grade hardened steel performs excellently under conditions of sliding friction and abrasive wear. Experiments show that a difference of only 1-2 HRC in hardness can result in a significant difference in wear resistance. Increasing the hardness of ordinary carbon steel from 35-40 HRC to 60 HRC can substantially improve its wear resistance.
Good surface quality potential. Hardened steel has high hardness and brittleness, making it less prone to built-up edge formation during cutting, resulting in a lower surface roughness. This is particularly advantageous for the manufacture of high-precision parts.
II. Applicable Scenarios for HRC60 Hardened Steel
Cold work dies. Materials such as Cr12MoV are widely used in the manufacture of high-performance cold work dies, with conventional processes requiring hardening to HRC60. Local hardening of the cavity surface of cold heading dies to around HRC60 effectively resists wear and crushing under stamping loads. For punching dies, a hardness of 58-62 HRC is recommended, and for dies, 60-64 HRC is recommended.
Cutting tools and measuring instruments. High-carbon alloy tool steels, after quenching, achieve a hardness above HRC60, possessing sufficient wear resistance and suitable for manufacturing cutting tools such as reamers, milling cutters, and scissors. SGT mold steel, after quenching, can reach a hardness above HRC60 with minimal deformation, making it suitable for manufacturing precision tools and measuring instruments.
Wear-resistant parts. Gears, rolls, carburized parts, and other workpieces requiring wear resistance generally require a hardness of around HRC60 after quenching. Hardened gears using HRC60 hardened tooth surfaces can significantly improve the load-bearing capacity and service life of transmission devices. The hardness of automotive gearbox gears after heat treatment is typically between HRC58 and 63.
III. Selection Considerations
HRC60 quenched steel is an extremely difficult-to-machine material, with a thermal conductivity of only 7.12 W/(m·K), approximately one-seventh that of 45 steel, making heat dissipation during cutting difficult. Cubic boron nitride (CBN) must be used during machining. Cutting tools, composite ceramics, or special cemented carbide. However, quenching reduces the plasticity and toughness of the steel, requiring careful evaluation for applications with high impact loads. For hot-working dies, an overall hardness exceeding 60 HRC is generally undesirable.
HRC60 hardened steel, with its core advantages of high hardness, high strength, and high wear resistance, plays an irreplaceable role in cold-working dies, cutting tools, measuring instruments, and wear-resistant parts. Proper selection and scientific processing are essential to fully realize its performance potential.
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Contact us:Company name:Kunshan Meiyaxing Hardware Machinery Co., Ltd;Tel:8618962438699;Address: Room 3003, Building 3, Zhengtailong, No. 1288 Chengbei Middle Road, Kunshan City, Jiangsu Province, China;Email:myxcuttingtools@gmail.com;Website: https://www.myxcuttingtools.com
