Hot Rolled Steel Round Bar GB, ASTM, JIS Standard WIth High Quality

Hot Rolled Steel Round Bar GB, ASTM, JIS Standard WIth High Quality System 1

Hot Rolled Steel Round Bar GB, ASTM, JIS Standard WIth High Quality

Ref Price:

Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 200000 m.t./month

Inquire Now

Add to My Favorites

OKorder Service Pledge

Quality Product, Order Online Tracking, Timely Delivery

OKorder Financial Service

Credit Rating, Credit Services, Credit Purchasing

Product Description:

1. Grade: Q195, Q235, A36, SS400, Q345

2. Material: Mild carbon steel

3. Diameter: 8mm-150mm

4. Length: 6m, 9m, 12m

5. Quenching methods: oil quenching, air cooling or salt bath quenching

6. Heat treatment: Isothermal annealing temperature is 800~880 °C, with 10~20 °C, the furnace cooling to about 600 °C

Usage and Applications of High Quality Hot Rolled Steel Round Bar GB, ASTM, JIS Standard

1. Construction steel round bar is mostly used for straight bundles supply, and used for steel, bolts and various mechanical parts. While the bigger round bar, or more than 25mm hot rolled bar, is mainly for the manufacture of mechanical parts or for seamless steel billet.

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

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.

Packaging & Delivery of High Quality Hot Rolled Steel Round Bar GB, ASTM, JIS Standard

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.

FAQ:

Q1: Why buy Materials & Equipment from OKorder.com?

A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com 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.

Images:

High Quality Hot Rolled Steel Round Bar GB, ASTM, JIS Standard

Q: Are steel round bars suitable for machining?: Indeed, machining is a suitable application for steel round bars. Due to their remarkable machinability, steel round bars are frequently employed in diverse machining procedures. These bars can be effortlessly molded, sliced, bored, and rotated using various machining methods like milling, turning, drilling, and grinding. By offering commendable dimensional stability, exceptional strength, and outstanding wear resistance, steel round bars prove to be an ideal choice for machining operations. Moreover, the availability of different grades and alloys further expands the scope of machining applications in industries spanning automotive, aerospace, construction, and manufacturing.

Q: What is the difference between a rough turned and a polished steel round bar?: A rough turned steel round bar has undergone a preliminary machining process that removes surface imperfections and excess material, providing a slightly smoother finish. On the other hand, a polished steel round bar has undergone further polishing or grinding processes to achieve a much smoother and aesthetically appealing surface finish.

Q: Difference between cold drawn round steel and round steel: The free torsion rigidity of hot rolled steel is higher than that of cold rolled steel, so the torsion resistance of hot rolled steel is better than that of cold rolled steel.

Q: Can steel round bars be bent or formed?: Yes, steel round bars can be bent or formed. They have the ability to be shaped into various angles or curves through the application of force, typically using tools such as a hydraulic press or bending machine.

Q: What is the difference between a hot-finished and a cold-finished steel round bar?: The main difference between a hot-finished and a cold-finished steel round bar lies in the manufacturing process. A hot-finished steel round bar is produced by heating the steel billet or ingot to high temperatures and then rolling it into the desired shape. This process results in a rougher surface, with the bar exhibiting a scale or oxidation layer. On the other hand, a cold-finished steel round bar is produced by further processing the hot-finished bar through additional steps like cold drawing, turning, grinding, or polishing. This process enhances the dimensional accuracy, surface finish, and mechanical properties of the bar. The cold-finished bar has a smoother surface and tighter tolerances, making it suitable for applications that require precision and a higher-quality finish. In summary, while both hot-finished and cold-finished steel round bars serve the same purpose, the cold-finished bar offers improved dimensional accuracy, surface finish, and mechanical properties due to additional processing steps.

Q: How do you measure the length of a steel round bar?: To measure the length of a steel round bar, you will need a measuring tool called a tape measure or a ruler. First, ensure that the bar is placed on a flat surface. Then, align the zero mark of the tape measure or ruler with one end of the bar. Hold the measuring tool steadily against the bar and extend it along the entire length until you reach the opposite end. Take note of the measurement displayed on the tape measure or ruler at the point where the other end of the bar aligns. This measurement is the length of the steel round bar.

Q: What are the different tolerances for steel round bars?: Steel round bars have a range of tolerances that are determined by the specific requirements and standards of different industries and applications. These tolerances ensure that the dimensions and surface conditions of the bars meet the desired specifications. The diameter tolerance is the most common tolerance for steel round bars. It refers to the allowable deviation from the specified diameter. For example, a steel round bar with a diameter tolerance of +/- 0.005 inches means that the actual diameter can vary within this range. Another important tolerance is the straightness tolerance, which measures the allowable deviation from a straight line over a specified length of the bar. Straightness tolerances are usually expressed as the maximum deviation in relation to the length, such as 0.010 inches per foot. Surface finish tolerance is also crucial and refers to the acceptable variation in the surface texture or roughness of the bar. This tolerance is often specified using parameters like Ra or Rz. For instance, a surface finish tolerance of Ra 0.8 micrometers means that the average roughness should not exceed this value. In addition to these common tolerances, there may be other specific tolerances based on the intended application of the steel round bars. These can include tolerances for straightness, length, weight, or other dimensional properties. It's important to note that the tolerances for steel round bars can vary depending on the standards followed by different industries and countries. To determine the specific tolerances required for a particular application, it's advisable to refer to the relevant standards or specifications.

Q: What are the advantages of using chromium-molybdenum alloy steel round bars?: One of the main advantages of using chromium-molybdenum alloy steel round bars is their superior strength and durability. This type of alloy steel has excellent tensile strength and high resistance to wear and corrosion, making it ideal for various applications that require a strong and long-lasting material. Additionally, chromium-molybdenum alloy steel round bars offer good heat resistance, making them suitable for use in high-temperature environments. Overall, these bars provide a reliable and cost-effective solution for industries such as construction, automotive, and manufacturing.

Q: Can steel round bars be used in the automotive parts industry?: Yes, steel round bars can be used in the automotive parts industry. Steel round bars are commonly used in the manufacturing of various automotive components due to their excellent strength, durability, and resistance to wear and tear. These bars can be fabricated into different shapes and sizes to meet the specific requirements of automotive parts such as axles, drive shafts, suspension components, steering components, and gears. The use of steel round bars ensures the structural integrity and reliability of automotive parts, making them ideal for withstanding the demanding conditions and loads experienced in the automotive industry.

Q: How do steel round bars resist corrosion?: Steel round bars resist corrosion through a combination of factors. Firstly, steel itself is an alloy made primarily of iron and carbon, and the addition of other elements such as chromium, nickel, and molybdenum enhances its corrosion resistance. These alloying elements form a protective oxide layer on the surface of the steel, which acts as a barrier against corrosive elements in the environment. Furthermore, steel round bars can undergo additional surface treatments or coatings to further enhance their resistance to corrosion. One common method is galvanization, where the steel is coated with a layer of zinc. This zinc coating serves as a sacrificial layer, corroding first before the steel itself is affected. Additionally, steel round bars can be coated with epoxy or other polymer coatings to provide an extra layer of protection. It is also important to note that the manufacturing process and quality of the steel round bars play a significant role in their corrosion resistance. Proper heat treatment, refining processes, and quality control measures ensure that the steel has a homogeneous microstructure and minimal impurities, reducing the likelihood of corrosion. Overall, the combination of alloying elements, surface treatments, and quality manufacturing processes contribute to the corrosion resistance of steel round bars, making them a reliable choice for applications in corrosive environments.

Send your message to us

*Email

*TEL

*Quantity

*Unit