alloy round steel bar JIS /GB/DIN STANDAR

alloy round steel bar JIS /GB/DIN STANDAR System 1

alloy round steel bar JIS /GB/DIN STANDAR System 2

alloy round steel bar JIS /GB/DIN STANDAR System 3

alloy round steel bar JIS /GB/DIN STANDAR System 4

alloy round steel bar JIS /GB/DIN STANDAR

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Loading Port:: Shanghai

Payment Terms:: TT OR LC

Min Order Qty:: 100 m.t.

Supply Capability:: 100000 m.t./month

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Product Description:

Specifications of Hot Rolled Round Bar

1. Grade: Q235, SS400, A36, S235JR

2. Diameter: 6mm—150mm

3. Length: As customer’s request, but we usually produce 6m, 9m and 12m

4. Steel Grade: Mild carbon steel

5. Characteristics: Has a good harden ability, high hardness, wear resistance, heat distortion, etc. So it can be used in the production of heavy duty and complex shape mold.

6. Main Markets: Mid East, Southeast Asia, Africa, Oceania, Eastern Asia, Central America and South America, etc.

Usage and Applications of Hot Rolled Round Bar

1. Hot rolled round bar of 6-25mm, or small round 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. 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.

Usage of Hot Rolled Round Bar

Packaging & Delivery of Hot Rolled 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: 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 Round Bar

We use advanced equipments like Electric Arc Furnace, Ladle Furnace and Vacuum Degasser to produce our products.

The common processes are preheated forging quenching, dual refinement solution process, cooling quenching and isothermal quenching. We use heat treatment for dual refinement solution process. The main measures process is high temperature solution and refinement cycle. High temperature solution can improve the carbide morphology and particle size. The aim is to make the loop refinement ultrafine austenite grains.

Preheated Round Bar

Quality Assurance of Hot Rolled Round Bar

1. We will strictly inspect our production that we sold according to the customer’s request.

2. 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.

3. Should the packing found damaged, the buyer has the right to claim to the seller.

Q:Can steel round bars be coated with protective finishes?: Yes, steel round bars can be coated with protective finishes. These finishes help to prevent corrosion, enhance durability, and provide additional resistance to wear and tear. Common protective finishes for steel round bars include coatings such as galvanization, powder coating, and epoxy coatings.

Q:What are the different types of surface defects that can occur in steel round bars?: There are several types of surface defects that can occur in steel round bars, including scratches, pits, roll marks, scale, and cracks.

Q:Are steel round bars available in metric sizes?: Yes, steel round bars are available in metric sizes.

Q:How do you cut steel round bars?: Steel round bars can be cut using various methods such as sawing, shearing, or using a cutting torch. Sawing involves using a bandsaw or a hacksaw to cut through the bar, while shearing uses a hydraulic or mechanical shear to trim the bar. Alternatively, a cutting torch can be used to melt through the steel, creating a clean cut. The choice of method depends on the thickness and size of the round bar, as well as the desired precision and efficiency of the cut.

Q:What are the considerations for selecting the right steel grade for a round bar?: When selecting the right steel grade for a round bar, there are several considerations to take into account. Firstly, the intended application of the round bar must be evaluated, as different steel grades offer varying levels of strength, hardness, and corrosion resistance. Additionally, factors such as the desired machinability, weldability, and heat treatability should be considered. Furthermore, the environmental conditions in which the round bar will be used, such as temperature and exposure to chemicals, play a crucial role in determining the appropriate steel grade. Lastly, budget constraints and availability of the steel grade should also be taken into consideration. Overall, a thorough analysis of the application requirements and an understanding of the properties of different steel grades are key considerations in selecting the right steel grade for a round bar.

Q:Can steel round bars be used in the aerospace manufacturing industry?: Yes, steel round bars can be used in the aerospace manufacturing industry. Steel is a commonly used material in aerospace applications due to its strength, durability, and resistance to high temperatures. Steel round bars are often used in the construction of aircraft frames, landing gears, and engine components.

Q:What is the density of a steel round bar?: The density of a steel round bar can vary depending on the specific type and composition of the steel, but on average, the density of steel is about 7.85 grams per cubic centimeter (g/cm³) or 7850 kilograms per cubic meter (kg/m³). This means that for a given volume of steel round bar, the weight or mass of the bar can be calculated by multiplying its volume by its density.

Q:What are the main differences between wrought round steel, hot rolled round steel and cold drawn round steel? Where are they used separately?: Cold drawn round steel (don't know, you mean can not cold dial round bar). But I understand by the cold dial round bar Also mainly used in hardware parts processing and production. Such as hinge shaft core or other surface and diameter requirements of production and processing occasions.

Q:What are the advantages of using aluminum-silicon alloy steel round bars?: One of the advantages of using aluminum-silicon alloy steel round bars is their high strength-to-weight ratio. This makes them lightweight yet robust, making them suitable for a wide range of applications where both strength and weight are important factors. Additionally, the alloy's excellent corrosion resistance properties make it highly durable and long-lasting, reducing maintenance and replacement costs. Another advantage is its good thermal conductivity, making it useful in applications that require efficient heat transfer. Overall, aluminum-silicon alloy steel round bars offer a combination of strength, lightness, corrosion resistance, and thermal conductivity, making them a versatile and advantageous material choice.

Q:What are the advantages of using sulfur-alloy steel round bars?: There are several advantages to using sulfur-alloy steel round bars. Firstly, sulfur-alloy steel round bars have improved machinability compared to other types of steel. The addition of sulfur to the alloy reduces the friction between the tool and the workpiece, resulting in smoother cutting and lower cutting forces. This makes it easier and more efficient to machine the steel, saving time and reducing costs. Secondly, sulfur-alloy steel round bars have enhanced chip-breaking properties. The sulfur content promotes the formation of small, brittle sulfide inclusions within the steel, which act as chip breakers during machining. These inclusions help to break the chips into smaller pieces, preventing them from tangling and causing issues such as built-up edges or poor surface finish. Another advantage of sulfur-alloy steel round bars is their improved surface finish. The sulfur content in the alloy helps to reduce the occurrence of built-up edges or burrs during machining. This results in a smoother and more precise surface finish, which is particularly important for applications where aesthetics or tight tolerances are required. Additionally, sulfur-alloy steel round bars offer good wear resistance. The sulfur content in the alloy forms hard sulfide inclusions, which help to improve the hardness and wear resistance of the steel. This makes it suitable for applications where the round bars will be subjected to abrasive wear, such as in the manufacturing of gears or bearings. Lastly, sulfur-alloy steel round bars are often more cost-effective compared to other high-performance alloys. The addition of sulfur is a relatively inexpensive process, making sulfur-alloy steel a more affordable option for many applications. This makes it an attractive choice for industries that require high-quality steel but are conscious of costs. Overall, the advantages of using sulfur-alloy steel round bars include improved machinability, enhanced chip-breaking properties, better surface finish, good wear resistance, and cost-effectiveness. These benefits make sulfur-alloy steel round bars a popular choice in various industries, including automotive, aerospace, and manufacturing.

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