Grade AISI52100/JIS52100 Bearing Steel Round Bar

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30 m.t
Supply Capability:
10000 m.t/month
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Item specifice

Bearing Steel
Steel Round Bar

 Specification of Round Bar

1, Dimention of 52100 Alloy Steel

Round bar


Length (mm)





Width (mm)  

Length (mm)   




The specification can be customized.

 2, Chemical Compositions (%)














































3, Features of  52100 alloy steel

1, High carbon alloy steel

2, High degree of hardness

3, Good compressive strength and abrasion resistance

4, Typical Applications 

1, Taps, gauges, swaging dies, ejector pins

2, Ball and roller bearings

3, Machine parts and for press tools


Our Featured Products

Alloy steel: Combination of steel / Bearing steel// Spring steel/ Cr- mo steel

GB 20Cr/ 40Cr / 42CrMo / 35CrMo/ 20CrMn/GCr15/30CrMnTi…

ASTM 5120 /5140 / 4140/ 4135/ 5152/52100…

JIS SCr420H/ SCr440/ SCM3/ SUP9/SUJ2…


Carbon steel: Carbon tool steel /Carbon Structural Steel

GB 20/ 35 /45/…

ASTM 1020/ 1030/1045…

JIS S20C/ S30C / S45C…


Usage and Applications of Round Bar

1. Chinese standard steel bar is often used where large amounts of steel need to be formed, for example as structural steel.

2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.

3. Steel round bar is used in construction and a large number of architectural and engineering structures.


Packaging & Delivery of Round Bar

Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)

Delivery Detail: 15~45 days

Trade terms: FOB, CFR, CIF


MOQ: 30 metric tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.

Weight: Theprice invoicing on theoretical weight basis or actual weight basis depends on customer’s request.

Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.

Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.



Q1: Why buy Materials & Equipment from

A1: All products offered are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.

Q2: How do we guarantee the quality of our products?

A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.

Q3: How soon can we receive the product after purchase?

A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

Q4: What makes stainless steel stainless?

A4: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.

Q5: Can stainless steel rust?

A5: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.

Grade AISI52100/JIS52100 Bearing Steel Round Bar

Grade AISI52100/JIS52100 Bearing Steel Round Bar

Special steel is used in the manufacturing of cutting tools because of its high hardness, toughness, and wear resistance. This type of steel can be heat-treated to achieve the desired hardness and can retain its cutting edge for a longer period. It is commonly used in the production of drills, saw blades, and milling cutters to ensure efficient and precise cutting operations.
There are several techniques used for joining special steel, including welding, brazing, soldering, and adhesive bonding. Welding is the most common method, which involves melting the base material and adding a filler material to create a strong bond. Brazing uses a filler metal with a lower melting point than the base material, while soldering uses a lower melting point filler metal. Adhesive bonding involves using a special adhesive to bond the steel parts together. Each technique has its advantages and limitations, and the choice depends on the specific requirements of the application.
Special steel is used in the aerospace manufacturing process for various applications, such as producing critical components like landing gear, turbine blades, and engine parts. The high strength, durability, and resistance to corrosion make special steel an ideal material for these aerospace components, ensuring the safety, reliability, and performance of the aircraft.
Stainless tool steel is commonly used in the manufacturing of surgical instruments due to its exceptional properties such as corrosion resistance, durability, and high hardness. These qualities make it suitable for producing sharp, long-lasting cutting edges on surgical instruments like scalpels, forceps, scissors, and bone saws. The stainless tool steel ensures that the surgical instruments remain sterile, withstand repeated sterilization processes, and maintain their sharpness, thus maximizing their longevity and effectiveness in surgical procedures.
Special steel typically demonstrates excellent fatigue strength compared to other types of steel. This is due to its enhanced composition and specific manufacturing processes, which result in improved resistance to cyclic loading and repetitive stress. The unique properties of special steel make it highly suitable for applications that require exceptional durability and long-term performance under dynamic conditions.
Some of the different forming techniques for special steel include hot forging, cold forging, extrusion, rolling, and casting. These techniques allow for the shaping and manipulation of the steel to meet specific requirements, such as strength, durability, and dimensional accuracy. Each technique has its own advantages and can be chosen based on the desired outcome and the characteristics of the special steel being used.
Shock-resistant steel is used in the production of impact tools because it has enhanced toughness and can withstand the high impact forces generated during use. This steel is specifically engineered to absorb and distribute the shock and vibrations produced when the tool strikes an object, reducing the risk of breakage and increasing the tool's overall lifespan.
Special steel generally performs well in terms of weldability. It has good ductility and can be easily welded using various welding methods such as arc welding, resistance welding, and laser welding. The composition and properties of special steel are specifically designed to ensure that it can be successfully welded without compromising its strength and integrity. However, the specific weldability of special steel may vary depending on its exact composition and specific grade. It is always recommended to consult the manufacturer's guidelines and follow proper welding procedures to achieve the best results when working with special steel.
Yes, special steel can be used in the printing industry. Special steel, such as stainless steel or tool steel, can be utilized in the manufacturing of printing equipment and machinery parts. These types of steel provide excellent strength, durability, and resistance to wear and corrosion, making them suitable for various components used in printing presses, rollers, blades, and other machinery.
Special steel is used in the chemical industry primarily for its corrosion resistance, high temperature stability, and durability. It is widely utilized in the construction of chemical processing equipment, such as reactors, tanks, and pipelines, to withstand harsh and corrosive environments. Additionally, special steel alloys are employed in the production of catalysts, which are essential for various chemical reactions. Overall, special steel plays a crucial role in ensuring the safety, efficiency, and longevity of chemical processes within the industry.

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