Q235, A36 SS400 Hot Rolled Steel Round Bar

Q235, A36 SS400 Hot Rolled Steel Round Bar System 1

Q235, A36 SS400 Hot Rolled Steel Round Bar System 2

Q235, A36 SS400 Hot Rolled Steel Round Bar

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Loading Port:: China main port

Payment Terms:: TT or LC

Min Order Qty:: 25 m.t.

Supply Capability:: 200000 m.t./month

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Product Description:

Specifications of Q235, A36 Hot Rolled Steel Round Bar

1. Sizes: Diameter: 6mm-150mm; Length: 6m, 9m, 12m

2. Grade: Q195, Q235

3. Invoicing on theoretical weight or actual weight as customer’s request

4. Shape: Round bar, solid bar of steel with circular section

5. Technique: Hot rolled

6. Details of specification

Diameter	Mass	Diameter	Mass	Diameter	Mass
(mm)	(kg/m)	(mm)	(kg/m)	(mm)	(kg/m)
6	0.22	22	2.98	53	17.30
7	0.30	24	3.55	56	19.30
8	0.40	25	3.85	60	22.20
9	0.50	26	4.17	63	24.50
10	0.62	28	4.83	65	26.00
11	0.75	30	5.55	70	30.20
12	0.89	32	6.31	75	34.70
13	1.04	34	7.13	80	39.50
14	1.21	36	7.99	85	44.50
15	1.39	38	8.90	90	49.90
16	1.58	40	9.86	95	55.60
17	1.78	42	10.90	100	61.70
18	2.00	45	12.50	120	88.85
19	2.23	48	14.20	140	120.93
20	2.47	50	15.40	150	138.82

Usage and Applications of Q235, A36 High Quality Hot Rolled Steel Round Bar

1. Steel round bar is used in a large number of architectural and engineering structures. Or it can be used in construction of plants for the production of steel house frames, high-voltage transmission towers, bridges, vehicles, boilers, containers, ships, etc.

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

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

Packaging & Delivery of Q235, A36 High Quality Hot Rolled Steel Round Bar

Packaging Detail: Standard seaworthy packing or as customer required; all goods are packed in bundle with steel strips and shipped by break bulk vessel or container

Delivery Detail: 45 days

Trade terms: FOB, CFR, CIF or as customer required

MOQ: 25 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.

Documents given: Full set (3/3) of original clean on board bill of lading; Original signed commercial invoice, in 3 originals and 3 copies; Original packing list in 3 originals and 3 copies; Policy of insurance; Certificate of origin and what the target market needs.

Production Flow of Q235, A36 High Quality Hot Rolled Steel Round Bar

EAF+LF+VD+ Forged+ Heat Treatment

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

Quality Assurance of Q235, A36 High Quality Hot Rolled Steel Round Bar

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

2. Our steel reaches international quality standards.

3. 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.

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

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 shiping date is dependent upon international and government factors, but is typically 7 to 10 workdays.

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Q235, A36 High Quality Hot Rolled Steel Round Bar

Q: Are steel round bars suitable for marine applications?: Yes, steel round bars are a viable option for marine applications. Steel is renowned for its robustness, endurance, and ability to withstand corrosion, making it a popular preference for a wide range of marine uses. Marine structures, such as shipbuilding, offshore platforms, and marine equipment, frequently incorporate steel round bars. The exceptional tensile strength of steel enables it to endure the harsh conditions of the marine environment, including the corrosive impact of saltwater. Moreover, steel is easily fabricated and welded, rendering it a versatile material for marine applications. Nevertheless, it is crucial to consider the specific requirements of the marine application and select the most suitable type of steel round bar. Duplex stainless steel, for instance, surpasses standard carbon steels in terms of corrosion resistance and is frequently favored for marine applications. Additionally, proper maintenance and the application of protective coatings are imperative to guarantee the longevity and performance of steel round bars in marine settings. In conclusion, steel round bars are a fitting choice for marine applications due to their strength, durability, and corrosion resistance. However, it is vital to choose the appropriate type of steel and implement adequate maintenance practices to ensure optimal performance in the marine environment.

Q: What are the different types of threads used for steel round bars?: There are several different types of threads that can be used for steel round bars, depending on the specific application and requirements. Some of the most common types of threads used for steel round bars include: 1. Unified National Coarse (UNC) Thread: This is the most widely used thread type for general-purpose applications. It has a relatively coarse pitch and is suitable for most common applications where high strength is not required. 2. Unified National Fine (UNF) Thread: This thread type has a finer pitch compared to UNC threads and offers better resistance to vibration. It is commonly used in applications where a higher level of thread engagement and better thread performance is required. 3. Metric Thread: Metric threads are widely used in countries that adopt the metric system. They are defined by their pitch, which is the distance between each thread. Metric threads offer a precise and standardized threading solution for various applications. 4. Acme Thread: Acme threads have a trapezoidal shape and are commonly used in applications that require high strength and resistance to wear and tear. They are often employed in heavy-duty machinery, such as lead screws, jackscrews, and power transmission systems. 5. Buttress Thread: Buttress threads have a triangular shape with one side being perpendicular to the axis of the thread. This unique design allows for high load-bearing capacity and resistance to axial forces in one direction. Buttress threads are commonly used in applications that involve high-pressure fluid flow, such as hydraulic cylinders and pumps. 6. Whitworth Thread: Whitworth threads were widely used in the past but have become less common nowadays. They have a rounded profile and a coarse pitch. Whitworth threads are often found in older machinery and equipment. It is important to select the appropriate thread type for a specific application to ensure proper fit, functionality, and durability of the steel round bar. The choice of thread type will depend on factors such as load requirements, environmental conditions, compatibility with mating parts, and industry standards.

Q: How are steel round bars stored?: To ensure the safety and easy accessibility of steel round bars, they are typically stored in a manner that prioritizes these factors. One common storage method involves horizontally stacking the bars on a pallet or rack system, often bundling them together and securing them with straps or wire to prevent rolling or shifting. Another option is to store the bars vertically in racks, placing each bar in a designated slot to avoid contact or damage. In both cases, maintaining proper spacing between the bars is crucial to allow for sufficient air circulation and prevent potential corrosion. Additionally, it is essential to store steel round bars in a dry and covered area to shield them from moisture, dust, and other environmental elements. Proper labeling and inventory management systems are also of utmost importance to ensure easy identification and retrieval of the bars when necessary.

Q: What is the maximum temperature steel round bars can withstand?: The maximum temperature that steel round bars can withstand varies depending on the specific grade of steel. However, in general, most steel round bars can withstand temperatures up to around 1000 to 1200 degrees Celsius (1832 to 2192 degrees Fahrenheit) without significant loss of structural integrity. It is important to note that prolonged exposure to high temperatures can lead to a reduction in the strength and hardness of the steel, as well as potential dimensional changes and distortion. Additionally, the specific properties and behavior of steel at high temperatures can also be influenced by factors such as alloy composition, heat treatment, and the presence of other elements or impurities. For applications requiring steel round bars to withstand extremely high temperatures beyond the typical range, specialized high-temperature steels, such as heat-resistant or creep-resistant alloys, may be used. These alloys are specifically designed to maintain their mechanical properties and structural integrity at elevated temperatures, often up to several thousand degrees Celsius.

Q: Can steel round bars be used in the manufacturing of automotive parts?: Indeed, the utilization of steel round bars in the production of automotive parts is possible. These bars possess numerous advantages that render them suitable for this purpose. Primarily, steel, being a robust and long-lasting material, is ideal for automotive components that necessitate high strength and structural integrity. Furthermore, steel round bars can be easily machined and shaped into various forms and sizes, facilitating the creation of customized automotive parts. Moreover, steel exhibits excellent resistance to heat and can endure high temperatures, making it appropriate for engine components and other parts exposed to extreme heat. Lastly, steel is a cost-effective material, which contributes to its popularity in the automotive industry. In conclusion, steel round bars are a dependable and versatile option when it comes to the manufacturing of automotive parts.

Q: Can steel round bars be used in the production of agricultural machinery?: Yes, steel round bars can be used in the production of agricultural machinery. Steel round bars are commonly used in the manufacturing of various components and parts for agricultural machinery due to their strength, durability, and versatility. These bars can be used to construct essential parts such as axles, shafts, gears, and brackets that are required for the operation of agricultural machinery. Additionally, steel round bars can be easily machined and welded to meet specific design requirements, making them a suitable choice for agricultural machinery manufacturers.

Q: What is the difference between a hot-rolled and a cold-drawn steel round bar?: The main difference between a hot-rolled and a cold-drawn steel round bar lies in the manufacturing process and the resulting properties of the finished product. Hot-rolled steel round bars are produced by heating a billet or ingot at a high temperature, typically around 1100 to 1300 degrees Celsius, and then rolling it into the desired shape and size. This process results in a rougher surface finish and larger tolerances compared to cold-drawn bars. Hot-rolled bars are generally less precise in dimensions and may have some surface defects such as scale or rust. On the other hand, cold-drawn steel round bars are manufactured by pulling a hot-rolled bar through a die at room temperature. This process reduces the diameter and enhances the surface finish of the bar, resulting in a smoother and more precise product. Cold-drawing also improves the mechanical properties of the steel, such as increased strength, hardness, and improved surface quality. The cold-drawing process also provides closer dimensional tolerances, making cold-drawn bars suitable for applications that require higher precision. In summary, the difference between a hot-rolled and a cold-drawn steel round bar lies in the manufacturing process, resulting in different surface finish, dimensional tolerances, and mechanical properties. Hot-rolled bars are produced at high temperatures, have a rougher surface, and larger tolerances, while cold-drawn bars are manufactured at room temperature, have a smoother surface, closer dimensional tolerances, and enhanced mechanical properties. The choice between the two depends on specific application requirements and the desired characteristics of the finished product.

Q: Are steel round bars susceptible to cracking?: Yes, steel round bars can be susceptible to cracking under certain conditions. The specific factors that can contribute to cracking in steel round bars include high stress levels, improper heat treatment, and the presence of impurities or defects in the material. Additionally, sudden changes in temperature or excessive loading can also increase the likelihood of cracking. It is important to note that steel round bars can vary in their susceptibility to cracking depending on the specific grade and composition of the steel. Some types of steel, such as low carbon or mild steel, are generally less prone to cracking compared to higher carbon or alloy steels. To mitigate the risk of cracking, proper handling and storage of steel round bars is crucial. This includes avoiding dropping or mishandling the bars, as well as storing them in a dry and controlled environment to prevent corrosion. Furthermore, proper heat treatment processes, such as annealing or tempering, can help improve the structural integrity of steel round bars and reduce the risk of cracking. Additionally, regular inspections and testing for any potential defects or impurities can help identify and address any issues before they lead to cracking. Overall, while steel round bars can be susceptible to cracking, taking appropriate precautions and utilizing proper manufacturing and handling techniques can minimize the risk and ensure the integrity of the bars.

Q: Can steel round bars be used in the oil and gas industry?: Indeed, the oil and gas industry finds great utility in steel round bars. These bars find widespread application across various sectors within the industry, encompassing drilling, production, and transportation of oil and gas. Their exceptional durability and high strength render them well-suited for enduring the arduous and demanding conditions typically encountered in this sector. They play a crucial role in the construction of drilling equipment, such as drill collars and drill pipes, along with the production of valves, pumps, and other vital components. Moreover, steel round bars contribute to the fabrication of pipelines and offshore platforms, wherein they provide structural support and guarantee the integrity of the infrastructure. All in all, the oil and gas industry deems steel round bars indispensable due to their robustness, dependability, and capacity to withstand the challenging environments encountered within this sector.

Q: Can steel round bars be used for making body panels?: Yes, steel round bars can be used for making body panels. Steel is a commonly used material in the automotive industry due to its strength, durability, and formability. Round bars can be shaped, welded, and formed into various body panel shapes, providing structural support and protection. However, it's important to note that steel round bars might not be the ideal choice for all body panels, as they can be heavier compared to alternative materials such as aluminum or carbon fiber. The decision to use steel round bars for body panels depends on factors such as the specific vehicle application, desired weight reduction, and cost considerations.

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