Hot Rolled Black Surface Alloy Mechanical Steel Pipe SAE52100/SUJ2/EN31

Introduction:

GCr15 is a high-carbon chromium bearing steel with low alloy content, which has high hardness, uniform structure, good wear resistance and high contact fatigue property after quenching and tempering.

Equivalent grades:

Chemical composition(%):

Features:

Grade EN31 / SAE52100 belongs to a kind of high carbon chromium bearing steel which most widely used width a good performance and less alloy content.

High hardnability and good comprehensive performance. Good machinability after spheroidizing annealing.

High hardness, uniformorganization, good wear-resistance, high contacr fatigue performance after quenching and tempering. And good hot working performance.

Heat treatment:

Applications:

For making all kinds of bearing ring and rolling element. For example: steel ball roller and ferrule of internal combuxtion engine, electric motorcycle, automonilrd, tractors, machine tools, rolling mill, boring machine, mining machinery, general machinery, high load and high speed roating mechancial transmission bearing. Except ball bearing and bearing ring, sometimes also used to make tools, such as pumching die, measuring tool.

Delivery condition:

Hot rolled or forged, black surface.
Hardenss: annealed to 207-229HB.

GCr15 is one of the most commonly used high-carbon chromium bearing steel with high hardenability and high uniform hardness after heat treatment.High wear resistance is better than that of GCr9, contact fatigue strength, good dimensional stability and resistance to corrosion, cold deformation and plastic medium, machinability, poor weldability, sensitive to white dot formation, the first kind of temper brittleness.

Corner of our factory:

Our service

We provide quality die & tool steel in stock for all industries.

Orders of any size, any length, ship fast

Provide related value-adding services :

metal cutting, sizing, machining (blanking, milling, grinding), and heat treatment.

Sawing for small or large quantities, sawing-to-size.

Excellent customer service

Contact Us

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Guangzhou ChangFeng Steel Co., Ltd. is a professional special steel company, which specialized in exporting mould steel products based in China.With twenty years experience in special steel industry, our main products are Plastic Mould Steel, Hot Work Mould Steel, Cold Work Mould Steel, Alloy Structural Steel, Tool Steel, Stainless Steel, Carbon Steel and Forged Block.

To ensure provide high quality products to customers, we have close cooperation with many Chinese first class special steel enterprises, including Baosteel Group, Dongbei Special Steel, Changcheng Special Steel, Hongsheng Heavy Industry, Xingcheng Special Steel, Daye Special Steel. We have thousand tons of stock materials in our own factory and also can provide processing services to customers. We are full of export experience for many years, the product covers America, Germany, France, Italy, Turkey, Singapore, Thailand, Malaysia, Vietnam, Taiwan, and Middle-East.

After years of development, the company has established a complete quality management and export service system. We have a group of experienced and competent elites and is capable of offering the best service to clients. Our company equips with large-sized Vertical saw machines, Horizontal saw machines, Milling machines, Grinding machines and other advanced equipments to provide customers with cutting and other processing services. All the products should be inspected the metallographic analysis, hardness, ultrasonic flaw detection and other strict inspection processes, which meet the standards of DIN, AISI, JIS and GB to ensure their function and quality.

Our company keeps the principle of “sincerely cooperation, endless striving for perfection”. We desire to establish the long-term mutual beneficial and win-win relationship with clients all over the world.