• Hot Rolled Steel Round Bars for Making Parts System 1
  • Hot Rolled Steel Round Bars for Making Parts System 2
  • Hot Rolled Steel Round Bars for Making Parts System 3
Hot Rolled Steel Round Bars for Making Parts

Hot Rolled Steel Round Bars for Making Parts

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Loading Port:
Tianjin
Payment Terms:
TT or LC
Min Order Qty:
50 m.t.
Supply Capability:
10000 m.t./month

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Product Description:

Hot Rolled Steel Round Bars for Making Parts is used for manufacturing ball, roller bearing steel and rings. Bearing in work is under great pressure and friction, so have high demands bearing steel and hardness and resistance, and high elastic limit.

Bearing steels are used for ball and roller bearing applications and are comprised of low carbon steels and high carbon through harden able steel.

For example, bearing ring, steel rolling mill, machinery, 100Cr6 bearing steel ball is widely used in high-speed and low-noise bearing, bicycle, motorcycle, automobile, bags electronically.

 

Product Applications:

Hot Rolled Steel Round Bars for Making Parts are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.

1. Steel round bar products is used in construction and a large number of architectural and engineering structures. And it can be used in production of handrail, windows, machinery, telecom and curtain wall.

2. It can be used in the fields like metal mines, cement plants, water coal slurry, power stations and chemical industry.

3. Besides, we can supply some especial material steel round bar that can be used for main shaft of steamer, hummer shank, with big section and supper force.

4. Recommended watchcase factory, screw factory and other cold stamping products industry use.

 

Product Advantages:

OKorder's Hot Rolled Steel Round Bars for Making Parts are durable, strong, and resist corrosion.

1. The steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%.

2. As the carbon percentage content rises, steel has the ability to become harder and stronger through heat treating; however it becomes less ductile.

3. Regardless of the heat treatment, higher carbon content reduces weld ability. In carbon steels, the higher carbon content lowers the melting point.

4. Quality should be in conformity with the specification of the manufacturer. Quantity and packing conditions should be in conformity with the term in the contract.

 

Main Product Features:

·         Premium quality

·         Prompt delivery & seaworthy packing (30 days after receiving deposit)

·         Corrosion resistance

·         Can be recycled and reused

·         Mill test certification

·         Professional Service

·         Competitive pricing

 

Specifications of Hot Rolled Steel Round Bars for Making Parts

1. Grade: Q235, A36, SS400, S235JR

2. Feature: Unbreakable, grinding resistant and high impact value

3. Diameter: 8mm-150mm

4. Performance: Mainly for civil construction

5. Characteristics: Even hardness, no deformation, no breaking, no mal-roundness

6. Technique: Hot rolled

7. Mass: Mass (kg/m) = Diameter (mm) × Diameter (mm) × 0.00617

Packaging & Delivery of Mild Hot Rolled Steel Round Bars for  Bults and Nults

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: 45 days

Trade terms: FOB, CFR, CIF

MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.

Weight: The price 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. 

 

Production Flow of Hot Rolled Steel Round Bars for Making Parts

Material prepare (billet) — heat up — rough rolling — precision rolling — cooling  — packing — storage and transportation

 

FAQ:

Q1: The products are invoicing on theoritical weight or on actual weight? 

A1: We can do it in both manners, according to the customers' request.

Q2: What is the normal tolerance of Hot Rolled Steel Round Bars for Making Parts?

A2: Normally 3%-5%, but we can also produce the goods according to the customers' requests. 

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.

Hot Rolled Steel Round Bars for Making Parts

Q:What is the minimum yield strength of steel round bars?
The specific grade and type of steel being used can cause the minimum yield strength of steel round bars to vary. However, the majority of steel round bars generally possess a minimum yield strength of 36,000 psi (pounds per square inch) or 250 megapascals (MPa). This minimum yield strength ensures that the steel round bars are strong enough to resist applied loads and avoid deformation or failure. It is worth mentioning that certain applications may demand steel round bars with higher yield strengths to fulfill particular performance criteria.
Q:What are the different marking methods for steel round bars?
Steel round bars commonly use several marking methods to identify and provide information about the bars. These methods include stamping, laser marking, inkjet printing, etching, and color coding. Stamping involves using a machine to imprint alphanumeric characters, symbols, or logos onto the steel bar's surface. This method provides a durable and corrosion-resistant marking. Laser marking, on the other hand, uses a laser beam to engrave precise and high-quality information onto the bar. It allows for intricate designs, barcodes, and serial numbers and ensures permanent identification. Inkjet printing is a non-contact method that prints information using inkjet technology. It is commonly used for barcodes, QR codes, and other data matrix codes. This method is fast and efficient, with ink that adheres effectively to the steel surface. Etching is a chemical method that removes layers of the steel's surface using acid or other chemicals. It creates a visible mark and is often used for logos and identification numbers. Etching provides a permanent and easily readable marking. Color coding is a simple method that uses paint or colored coatings to mark different steel grades. Each color represents a specific attribute or characteristic. Color coding allows for quick and visual identification of the bars. These marking methods are essential in industries like construction, manufacturing, and engineering as they ensure proper identification, traceability, and quality control of steel round bars. The choice of method depends on factors such as permanence, visibility, and the specific information to be marked on the bars.
Q:Are steel round bars resistant to corrosion?
Yes, steel round bars can be resistant to corrosion depending on the type of steel and the environment they are exposed to. Stainless steel round bars, for example, contain chromium which forms a thin passive layer on the surface that protects against corrosion. This layer is self-repairing and provides excellent resistance to corrosion in many environments, including moisture, chemicals, and saltwater. However, carbon steel round bars are not inherently corrosion-resistant and may require additional protective coatings or treatments to prevent corrosion. Therefore, it is important to consider the specific type of steel and the intended application when determining the corrosion resistance of steel round bars.
Q:What is the mechanical properties of No. 40 round bar?
40# stands for steel grades, round bars for steel profiles, mechanical properties for steels, tensile strength, yield point, (cattle / mm, 2) elongation, shrinkage (%), impact energy, Ak (coke), state, hardness, HB<
Q:What is the difference between a forged and a peeled steel round bar?
Both forged steel round bars and peeled steel round bars are utilized in various industries for different purposes. However, there exist notable distinctions between the two concerning their manufacturing procedures and physical attributes. To produce a forged steel round bar, a solid steel billet is heated to a high temperature and then shaped into the desired form by applying pressure. This process involves the use of machinery, such as hammers or presses, to shape the steel and create the round bar. The forging process enhances the strength and durability of the steel, making it suitable for applications that demand high strength and resistance to wear and tear. In contrast, a peeled steel round bar is manufactured using a different process called peeling or turning. During this procedure, a solid steel bar is rotated against a cutting tool, which eliminates the outer layer of the bar, resulting in a smooth and precise surface finish. Peeling eliminates any surface defects or imperfections present in the original bar, thereby enhancing its dimensional accuracy and surface quality. Regarding physical characteristics, forged steel round bars typically possess a rougher surface texture due to the nature of the forging process. This rough texture can provide improved grip or adhesion in certain applications. Additionally, forged bars often exhibit a denser and more uniform internal grain structure, contributing to their superior mechanical properties. On the other hand, peeled steel round bars exhibit a smooth and shiny surface finish as a consequence of the peeling process. This smooth surface makes peeled bars suitable for applications that prioritize aesthetic appeal or require a low coefficient of friction. However, the peeling process may result in a minor reduction in the overall diameter of the bar. In conclusion, the primary distinction between a forged and a peeled steel round bar lies in their manufacturing processes and resulting physical attributes. Forged bars are created through the application of pressure, resulting in a rougher surface texture and superior mechanical properties. Peeled bars, on the other hand, are produced by removing the outer layer of a steel bar, resulting in a smooth surface finish and improved dimensional accuracy. Ultimately, the choice between these two types of bars depends on the specific requirements of the application at hand.
Q:What are the different welding techniques for steel round bars?
There are several different welding techniques that can be used for steel round bars, including shielded metal arc welding (SMAW), gas metal arc welding (GMAW), gas tungsten arc welding (GTAW), and flux-cored arc welding (FCAW). Each technique has its own advantages and disadvantages, depending on factors such as the thickness of the steel, the desired weld strength, and the specific application.
Q:What is the difference between a rough turned and a precision ground steel round bar?
A rough turned steel round bar is a raw material that has undergone minimal machining, leaving a slightly rough surface finish. It is typically used for applications where a high level of precision is not required, such as structural components. On the other hand, a precision ground steel round bar is a finished product that has undergone precise machining to achieve a smooth and accurate surface finish. This process ensures tight dimensional tolerances and a consistent diameter throughout the length of the bar. Precision ground bars are commonly used in applications that require close dimensional control and a high level of accuracy, such as in machinery and tooling.
Q:What is the difference between a polished and a precision ground steel round bar?
A polished steel round bar refers to the process of buffing the surface to achieve a smooth and shiny finish, primarily for aesthetic purposes. On the other hand, a precision ground steel round bar undergoes a more precise grinding process to achieve tight dimensional tolerances and a smooth, accurate surface finish, primarily for functional purposes.
Q:How do steel round bars compare to plastic round bars?
Steel round bars and plastic round bars have several key differences that affect their performance and suitability for different applications. Strength and durability: Steel round bars are known for their exceptional strength and durability, making them ideal for applications requiring high load-bearing capacity. They can withstand heavy loads and resist deformation or breakage. On the other hand, plastic round bars are generally less strong and durable, making them more suitable for lighter applications where strength is not a primary concern. Weight: Steel round bars are significantly heavier than plastic round bars due to the difference in material density. This can be an advantage in some applications where additional weight is desired for stability or balance. Plastic round bars, on the other hand, are lighter and can be advantageous in applications where weight reduction is important, such as in aerospace or automotive industries. Corrosion resistance: Steel round bars are known for their excellent corrosion resistance, particularly when they are made from stainless steel. This makes them suitable for applications in harsh environments or exposed to moisture. Plastic round bars, however, are generally more susceptible to degradation due to exposure to UV radiation, chemicals, or extreme temperatures. Therefore, they may not be as suitable for outdoor or corrosive environments. Versatility: Steel round bars offer a wide range of options in terms of size, shape, and grade. They can be machined, welded, bent, or shaped to suit various applications. Plastic round bars also come in different shapes and sizes, but their versatility is somewhat limited compared to steel. They may not be as easily machined or welded, and their performance can be affected by temperature fluctuations. Cost: Steel round bars are generally more expensive than plastic round bars due to the higher cost of raw materials and manufacturing processes. Plastic round bars, on the other hand, are more affordable and can offer cost savings in certain applications. In summary, steel round bars offer superior strength, durability, and corrosion resistance, making them suitable for heavy-duty applications. Plastic round bars are lighter, more affordable, and can be advantageous in applications where weight reduction is important. Ultimately, the choice between steel and plastic round bars depends on the specific requirements of the application and the trade-offs between strength, weight, cost, and corrosion resistance.

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