GCr15 bearing steel-WJY brand (1)

GCr15 steel is a low alloy content, with good performance, the most widely used high-carbon chromium bearing steel. After quenching and tempering with a high hardness, uniform organization, good wear resistance, high contact fatigue performance. The steel cold plastic processing medium, cutting performance in general, poor welding performance, the formation of white point sensitive performance, there are temper brittleness. The actual is Cr15.

Chinese name

High carbon chromium bearing steel

Foreign language name

GCr15

 

Features

Higher hardness, uniform organization

Disadvantages

Cutting performance in general, poor welding performance Overview of definitions


GCr15 steel is a low alloy content, with good performance, the most widely used high-carbon chromium bearing steel. After quenching and tempering with a high hardness, uniform organization, good wear resistance, high contact fatigue performance. The steel cold plastic processing medium, cutting performance in general, poor welding performance, the formation of white point sensitive performance, there are temper brittleness. The actual is Cr15.

GCr15 is one of the most commonly used high chromium bearing steel, with high hardenability, heat treatment can be high and uniform hardness. Wear resistance is better than GCr9, high contact fatigue strength, good dimensional stability and corrosion resistance, cold deformation plastic medium, machinability in general, poor weldability, white point formation sensitive, the first type of temper brittleness. In the ball bearing manufacturing, for the thickness of the wall thickness of 12mm. Outer diameter <250mm H-class to C-class bearing sets, diameter 25.4-50.8mm ball diameter <22mm of the roller, in addition can also be used as a large Load. Requirements of high wear resistance. High elastic limit. High contact fatigue strength of the other mechanical parts and a variety of precision measuring tools, such as cold die. Such as the ball screw of the machine tool, the nozzle of the turbo jet engine nozzle, the plunger, the valve, the bushing and so on. 


Implementation of standards

China GB / T18254-2002

Japan JIS G4805: 1991

ASTM A295: 1998

Unified Digital Code: B00150

 

Element content

C:0.95-1.05 Mn:0.25-0.45 Si:0.15-0.35 S:≤0.025 P:≤0.025 Cr:1.40-1.65 Mo:≤0.10 Ni:≤0.30 Cu:≤0.25 Ni+Cu≤0.50


Post date :2018-02-06