GCr15 steel is a high carbon chromium bearing steel with low alloy content and wide application. After quenching and low-temperature tempering, it has high hardness, uniform structure, good wear resistance, and high contact fatigue performance.
GCr15 steel is a high carbon chromium bearing steel with low alloy content, good performance, and wide application. After quenching and low-temperature tempering, it has high hardness, uniform structure, good wear resistance, and high contact fatigue performance. This steel has moderate plasticity during cold processing, average cutting performance, poor welding performance, high sensitivity to the formation of white spots, and has temper brittleness.
GCr15 is a commonly used high carbon chromium bearing steel with high hardenability, which can achieve high and uniform hardness after heat treatment. Better wear resistance than GCr9, high contact fatigue strength, good dimensional stability and corrosion resistance, moderate cold deformation plasticity, average machinability, poor weldability, sensitive to white spot formation, and similar to tempering brittleness. In the manufacturing of ball bearings, it is used to roll a wall thickness of 12mm H-grade to C-grade bearing sleeves with an outer diameter of less than 250mm, steel balls with a diameter of 25.4-50.8mm; Rollers with a diameter<22mm can also be used to withstand large loads Require high wear resistance High elastic limit Other mechanical parts with high contact fatigue strength and various precision measuring tools such as cold stamping dies. Such as the ball screw of machine tools and the nozzle of turbojet engines Piston Valve Lining, etc.
Execution standards
China GB/T18254-2002
Japanese JIS G4805:1991
ASTM A295:1998 in the United States
Unified numerical code: B00150
chemical composition
C：0.95-1.05
Mn：0.20-0.40
Si：0.15-0.35
S：≤0.020
P:≤0.027
Cr:1.30-1.65
Mo:≤0.10
Ni:≤0.30
Cu:≤0.25
Ni+Cu≤0.50
mechanical property
Supply state hardness (HRC): 25.8
Tensile strength (MPa): 861.3
Yield strength (MPa): 518.42
Post fracture elongation (%): 27.95
Bending strength (MPa): 1821.61
1. The company has established long-term and stable cooperative relationships with multiple well-known steel mills at home and abroad, all of which provide original material certification
2. Wholesale and retail, with favorable prices, superior quality (large quantities are preferred), and timely and fast delivery
3. Wide channels, sufficient supply of goods, and business scope covering all parts of the country, can meet the needs of customers in various regions
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