GCr15 wire is a commonly used high-carbon chromium bearing steel wire. GCr15 wire is a fine product made of precisely formulated chemical composition. Whether it is cold-processed or hot-processed, it can comply with the requirements of the process and be molded into various precision parts. The surface is as smooth as a mirror and the diameter size is accurate, which reflects a high degree of consistency and reliability. After careful heat treatment, it can show a hardness of up to 60-64HRC, and its wear resistance is outstanding. Whether in heavy-load mechanical transmission or in high-speed rotating bearings, it can resist friction erosion and maintain a stable working state for a long time. At the same time, it also has excellent fatigue strength and toughness. It can withstand the test of impact loads and will not break easily, providing a solid guarantee for the safe operation of the equipment.

Chemical element content (%)

Specification：2.00~42.00mm

Application: Used to manufacture rolling elements and rings of various bearings, such as balls, rollers, bushings, etc., and also used to manufacture measuring tools, molds, tools and other parts with high requirements for hardness and wear resistance; widely used in automobile manufacturing, machinery manufacturing, molds and other fields.

Mechanical properties:

Tensile strength ≥980MPa, yield strength ≥785MPa, elongation ≥9%, hardness 60-64HRC, impact toughness ≥30kJ/m².

Heat treatment process：Including ordinary annealing, isothermal annealing, normalizing, high temperature tempering, quenching, low temperature tempering, carbonitriding, etc. For example, ordinary annealing is heated at 790-810 degrees, furnace cooled to 650 degrees and then air cooled, and the hardness can reach HB170-207; quenching is heated at 860 degrees and then oil quenched, which can reach the hardness of HRC62-66.