SAE 52100 Bearing Steel Round Bars SUJ2 System 1

SAE 52100 Bearing Steel Round Bars SUJ2 System 2

SAE 52100 Bearing Steel Round Bars SUJ2 System 3

SAE 52100 Bearing Steel Round Bars SUJ2 System 4

SAE 52100 Bearing Steel Round Bars SUJ2

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 30 m.t.

Supply Capability:: 10000 m.t./month

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DIN	AISI	JIS
1.2067	L1/L3	SUJ2

C	Si	Mn	Cr	P	S	Mo	Ni
0.95-1.10	0.15-0.35	0.25-0.40	1.40-1.70	≤0.03	≤0.03	---	---

Round steel bar 60-800mm
Flat steel bar 25-400mm*200-800mm

Black surface/ Grinded/ Machined

HB225MAX

Flat Steel GCr15 Flats are of Good hardening ability. Good wear resistance. Shadow depth of hardness

Flat Steel GCr15 Flats are for making gauges and measuring tools, mandrels, cold rolls and flanging rolls, wood and paper processing tools, slitting blades, ball bearings and shear knives

Hardening Harden from a temperature of 790-820oC, 820-860oC followed by water or oil quenching. Hardness after quenching is 63-67, 63-66 HRC. Tempering Tempering temperature: 150-300oC. Hardness after tempering is 56-65 HRC.

Product Name	Typical Grades	Diameter(mm)	Standard adopted
Carbon Steel	20 (1020/S20C/C22)	Ø16-Ø300	GB/SAE/JIS/DIN
40 (1040/S40C/C40)
45 (1045/S45C/C45)
Bearing Steel	GCr9 (51100/SUJ1)	Ø12-Ø250
GCr15 (52100/SUJ2/100Gr6)
GCr9SiMn (A485-Gr.1/SUJ3)
Cr-Mo Steel	20Cr (5120/SCr420H/20Cr4)	Ø12-Ø250
40Cr (5140/SCr440/41Cr4)
42CrMo(4140/SCM440/42CrMo4)
Gear Steel	20CrNiMo	Ø16-Ø600
20CrMn(5115/SMnC420/20MnCr5)
20CrNiMo(8620/SNCM220/20CrMiMo2)

Carbon Steel	Mold bottom, Plastic mold, Construction machinery parts Automobile parts, Security grills, Screens, Construction
Bearing Steel	Aerospace, Navigation, Nuclear energy, Chemical industry Electronic information, Petrochemical, Instrument and meter Transportation
Cr-Mo Steel	Mechanism & Fasteners gear, Stressed components for vehicles Engines and machines, Parts of larger cross-section
Gear Steel	All kinds of gears, Statically and dynamically stressed component for vehicles Engines and machine, Larger cross-section parts, Crankshafts

Company Information

CNBM International Corporation is the most important trading platform of CNBM group.

Whith its advantages, CNBM International are mainly concentrate on Cement, Glass, Iron and Steel, Ceramics industries and devotes herself for supplying high qulity series of refractories as well as technical consultancies and logistics solutions.

FAQ

1, Your advantages?

professional products inquiry, products knowledge train (for agents), smooth goods delivery, excellent customer solution proposale

2, Test & Certificate?

SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem

3, Factory or Trading Company?

CNBM is a trading company but we have so many protocol factories and CNBM works as a trading department of these factories. Also CNBM is the holding company of many factories.

4, Payment Terms?

30% TT as deposit and 70% before delivery.

Irrevocable L/C at sight.

5, Trading Terms?

EXW, FOB, CIF, FFR, CNF

6, After-sale Service?

CNBM provides the services and support you need for every step of our cooperation. We're the business partner you can trust.

For any problem, please kindly contact us at any your convenient time.

We'll reply you in our first priority within 24 hours.

Packaging & Delivery

1, Packaging: seaworthy package or as required

2, Delivery: 35-45 days or based on quantity

Q: What are the different grades of tool steel round bars?: There are several different grades of tool steel round bars, including A2, D2, O1, S7, and H13. Each grade has its own unique properties and is suitable for specific applications in the manufacturing and machining industries.

Q: How do steel round bars compare to titanium round bars?: Steel round bars and titanium round bars possess distinct properties and characteristics that render them suitable for various applications. Below is a comparative analysis of the two: 1. Strength: In terms of strength-to-weight ratio, titanium round bars surpass steel round bars. This implies that titanium can endure larger loads and stresses while being lighter in weight compared to steel. Nevertheless, steel round bars generally exhibit greater strength and rigidity than titanium, making them ideal for heavy-duty applications necessitating high strength. 2. Resistance to Corrosion: Titanium round bars display an exceptional resistance to corrosion, even in harsh environments like saltwater. Conversely, steel is prone to corrosion and necessitates additional protective measures (e.g., coatings or galvanization) to forestall rusting. Consequently, titanium round bars are preferred in applications where corrosion resistance is vital. 3. Density: Titanium round bars possess a lower density in comparison to steel round bars. This diminished density renders titanium well-suited for applications where weight reduction is critical, such as the aerospace and automotive industries. Steel round bars, with their higher density, are typically employed in applications where weight is of less concern. 4. Resistance to Temperature: Titanium round bars exhibit excellent resistance to heat, retaining their mechanical properties even at high temperatures. Conversely, steel round bars may lose their strength and become brittle when subjected to elevated temperatures. Hence, titanium round bars are suitable for applications requiring resistance to elevated temperatures. 5. Cost: Generally, steel round bars are more cost-effective than titanium round bars. Titanium is an expensive metal due to its scarcity and intricate extraction process. The cost disparity between the two materials can be significant, making steel round bars more favorable for budget-conscious projects. In conclusion, the selection between steel round bars and titanium round bars hinges on the specific requirements of the application. Steel is preferable for its superior strength and affordability, whereas titanium offers advantages such as high strength-to-weight ratio, corrosion resistance, temperature resistance, and lower density.

Q: Can steel round bars be used for decorative purposes?: Indeed, decorative purposes can be served by steel round bars. When utilized in diverse architectural and interior design ventures, they contribute a contemporary and industrial appeal. By shaping, bending, and welding steel round bars, one can fashion exclusive and attention-grabbing items like furniture, sculptures, railings, and decorative accents. Their polished and metallic look harmonizes with various styles and design motifs, rendering them a versatile option for embellishment. Moreover, the durability and longevity of steel round bars guarantee that these decorative elements will endure the passage of time.

Q: How are steel round bars used in the manufacturing of heat exchangers?: Steel round bars are commonly used in the manufacturing of heat exchangers as they provide structural support and durability to the equipment. These bars are often used as the framework or as internal support for the heat exchanger's core, ensuring stability and longevity. Additionally, steel round bars can be machined or formed into various shapes to accommodate specific design requirements, allowing for efficient heat transfer and optimal performance of the heat exchanger.

Q: Can steel round bars be used for making staircases?: Yes, steel round bars can be used for making staircases. Steel round bars are commonly used in the construction industry for various applications, including staircase fabrication. They are strong, durable, and provide excellent structural support, making them an ideal choice for staircases. Steel round bars can be used to create the framework and structure of the staircase, providing stability and safety. Additionally, steel round bars can be easily shaped and welded to create different designs and styles for the staircase, allowing for customization and flexibility in the construction process. Overall, steel round bars are a reliable and popular choice for making staircases due to their strength, durability, and versatility.

Q: What are the different types of steel round bars used in the manufacturing of valves and fittings?: There are several different types of steel round bars commonly used in the manufacturing of valves and fittings. These include: 1. Carbon Steel Round Bars: Carbon steel round bars are the most commonly used type of steel in valve and fitting manufacturing. They are known for their strength, durability, and ability to withstand high temperatures and pressures. 2. Stainless Steel Round Bars: Stainless steel round bars are highly resistant to corrosion, making them ideal for use in valves and fittings that come into contact with liquids or gases. They are also known for their high strength and excellent mechanical properties. 3. Alloy Steel Round Bars: Alloy steel round bars are made by adding various alloying elements such as chromium, manganese, and nickel to carbon steel. This enhances their strength, hardness, and resistance to wear and tear, making them suitable for use in demanding valve and fitting applications. 4. Duplex Steel Round Bars: Duplex steel round bars are a type of stainless steel that contains a balanced mix of ferrite and austenite phases. This gives them a unique combination of excellent strength, corrosion resistance, and resistance to stress corrosion cracking, making them suitable for use in valves and fittings exposed to harsh environments. 5. Nickel Alloy Round Bars: Nickel alloy round bars are known for their exceptional resistance to corrosion and high-temperature applications. They offer excellent mechanical properties and are commonly used in valves and fittings that handle corrosive fluids or operate in extreme temperatures. It is important to select the appropriate type of steel round bar for valve and fitting manufacturing based on the specific requirements of the application, considering factors such as pressure, temperature, fluid compatibility, and environmental conditions.

Q: Can steel round bars be welded to other materials?: Yes, steel round bars can be welded to other materials. Welding is a common method used to join different materials together, including steel round bars and various other materials such as aluminum, stainless steel, and even non-metallic materials like plastics. However, it is important to note that the compatibility of the materials being welded is crucial for a successful weld. The welding process requires the use of appropriate welding techniques, filler metals, and sometimes pre-heating or post-weld heat treatment to ensure a strong and durable bond between the steel round bar and the other material. It is also important to consider the specific application and the properties required for the joint to determine the most suitable welding method and materials.

Q: What are the different surface treatments available for steel round bars?: There are several different surface treatments available for steel round bars, each designed to enhance the material's properties and improve its overall performance. Some common surface treatments for steel round bars include: 1. Hot-dip galvanizing: This process involves immersing the steel round bars in a bath of molten zinc, forming a protective coating on the surface. Hot-dip galvanizing provides excellent corrosion resistance, making it suitable for outdoor applications or environments where the steel is exposed to moisture. 2. Electroplating: Electroplating is the process of depositing a thin layer of metal onto the surface of the steel round bars using an electric current. This treatment can provide enhanced corrosion resistance, improved appearance, or specific functional properties, depending on the metal used for electroplating. 3. Powder coating: Powder coating involves applying a dry powder paint to the surface of the steel round bars, which is then cured by heat to form a protective and decorative coating. This treatment offers excellent durability, resistance to corrosion, and a wide range of color options. 4. Black oxide coating: Black oxide coating is a chemical treatment that creates a dark, matte finish on the surface of the steel round bars. It provides moderate corrosion resistance and enhances the material's appearance, making it suitable for decorative or non-reflective applications. 5. Chrome plating: Chrome plating is a process of electroplating a thin layer of chromium onto the surface of the steel round bars. This treatment enhances corrosion resistance, improves wear resistance, and provides a shiny, reflective finish. 6. Nitriding: Nitriding is a heat treatment process that diffuses nitrogen into the surface of the steel round bars, forming a hardened layer. This treatment improves the material's hardness, wear resistance, and fatigue strength, making it suitable for applications requiring high strength and durability. 7. Anodizing: Anodizing is commonly used for aluminum, but it can also be applied to steel round bars. This electrolytic process creates a protective oxide layer on the surface, enhancing corrosion resistance and providing a decorative and durable finish. These are just a few examples of the different surface treatments available for steel round bars. The choice of treatment depends on the specific requirements of the application, such as corrosion resistance, wear resistance, appearance, or functional properties needed.

Q: What are the advantages of using weather-resistant steel round bars?: There are several advantages to using weather-resistant steel round bars. Firstly, weather-resistant steel round bars are designed to withstand the effects of harsh weather conditions. They are specifically formulated to resist corrosion, rust, and other forms of degradation caused by exposure to rain, snow, humidity, and even saltwater environments. This makes them highly suitable for outdoor applications, such as construction projects, marine structures, and infrastructure in coastal areas. Secondly, the use of weather-resistant steel round bars eliminates the need for additional protective coatings or treatments. Unlike regular steel, which requires regular maintenance and painting to prevent rust and corrosion, weather-resistant steel round bars possess a natural protective layer that forms on the surface, known as patina. This patina acts as a barrier against further corrosion, reducing the overall maintenance requirements and extending the lifespan of the material. Thirdly, weather-resistant steel round bars offer exceptional strength and durability. They are manufactured using a special alloy composition, which enhances their mechanical properties and makes them highly resistant to impact, bending, and fatigue. This makes them ideal for structural applications where strength and reliability are crucial, such as in bridges, building frameworks, and heavy machinery. Additionally, weather-resistant steel round bars have aesthetic advantages. The unique patina that develops on the surface of these bars gives them a distinctive appearance, often described as an attractive and warm reddish-brown color. This natural weathered look can be desirable for architectural and design purposes, adding a visually appealing element to structures and outdoor installations. Lastly, the use of weather-resistant steel round bars contributes to sustainability and cost-effectiveness. Due to their long lifespan and low maintenance requirements, these bars offer a more sustainable solution compared to traditional steel, which often requires frequent painting and replacement. Furthermore, the initial investment in weather-resistant steel round bars may be higher than regular steel, but the long-term savings in maintenance and replacement costs make them a cost-effective choice in the long run. In conclusion, the advantages of using weather-resistant steel round bars include their ability to withstand harsh weather conditions, eliminate the need for additional protective coatings, provide exceptional strength and durability, offer aesthetic appeal, and contribute to sustainability and cost-effectiveness.

Q: What are the advantages of using chromium-alloy steel round bars?: There are several advantages to using chromium-alloy steel round bars. Firstly, the presence of chromium in the alloy significantly enhances the corrosion resistance of the steel, making it ideal for applications in harsh environments or exposed to corrosive substances. Additionally, chromium-alloy steel round bars offer excellent strength and hardness, making them suitable for heavy-duty applications that require high load-bearing capacity. The inclusion of chromium also improves the steel's heat resistance, allowing it to withstand high temperatures without losing its structural integrity. Lastly, chromium-alloy steel round bars are known for their excellent wear resistance, making them a reliable choice for industries such as automotive, construction, and manufacturing.

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