hot rolled round bar steel

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Product Description:

Specifications of Wire Rod Q235:

Steel Grade: Q235, Standard: GB Diameter: 5.5mm, 6.5mm, 7mm,8mm,9mm,10mm,12mm,14mm

Diameter Tolerance:±0.3mm 6.5mm can be drawing into 2mm/8.0mm can be drawing into 3mm

Brand Name: N-RIVER Place of Origin: Hebei, China Mainland Application: construction, building etc

Chemical Composition:

Please kindly find our chemistry of our material based on Q235 as below for your information

Trademark	Rank	Chemical composition (quality score) %
		C	Si	Mn	S	P
		C	Si	Mn	S	P
			≤		≤	≤
Q235	A	0.14-0.22	0.30	0.30-0.65	0.050	0.045
Q235	B	0.12-0.20	0.30	0.30-0.70	0.045	0.045
Trademark	Rank	Pulling Test
		Bend PointΔs/Mpa		Tensile Strength	Elongation Ratioδ5%
					Elongation Ratioδ5%
		Thickness (Diameter) /MM			Thickness (Diameter) /MM
		≤16	16-40		≤16	16-40
		≥			≥
Q235	A	235	225	375-500	26	25
Q235	B	235	225	375-500	26	25

Usage and Applications of Wire Rod Q235:

After hot-rolled the products shaped into coil and delivery as finished product, including round, square, rectangular, hexagonal and so on. Since most of the products are round, it is generally called wire rod. Carbon steel wire rod is widely used in construction and manufacturing. Carbon steel wire rod is mainly used for reinforcement of reinforced concrete and welded structure or reprocessed (roberts , nail, etc.) materials, especially used to produce wire drawing, welding electrode, nails, spring, electronic, precise machinery parts and so on.

Packaging & Delivery of Wire Rod Q235:

Packaging Detail: products are packed in coil and then shipped by container or bulk vessel

Each coil weight: 2-3MT

Delivery Detail: within 45 days after received deposit or LC.

Label: to be specified by customer, generally, each bundle has 1-2 labels

Trade terms: FOB, CFR, CIF

Q: What are the different types of connections used with steel round bars?: There are several types of connections commonly used with steel round bars, including threaded connections, welded connections, and mechanical connections such as couplers or splice sleeves. These connections are used to join steel round bars together in various applications, providing strength and stability to the overall structure.

Q: What is the difference between a rough turned and a hot rolled steel round bar?: The manufacturing processes and resulting properties of a rough turned steel round bar and a hot rolled steel round bar differ. To produce a rough turned steel round bar, a steel billet or ingot is heated to a high temperature and then subjected to rough machining processes. This involves removing excess material from the surface to achieve the desired size and shape. The result is a slightly smoother surface compared to the hot rolled bar, although there may still be some minor imperfections. Rough turned bars are often used when a smoother surface finish is required, such as in machining operations. On the other hand, a hot rolled steel round bar is manufactured by heating a steel billet or ingot to extremely high temperatures and passing it through a series of rolling mills. This hot rolling process involves compressing the steel bar between rotating rolls, which reduces the thickness and increases the length. As a result, hot rolled bars have a rough, scaled surface with variations in diameter along their length. This textured surface provides excellent adherence for paint, coatings, or further processing. Hot rolled bars are commonly used in construction, manufacturing, and structural applications where mechanical properties like strength and durability are important. To summarize, the main difference between a rough turned and a hot rolled steel round bar lies in their manufacturing processes and surface finish. Rough turned bars undergo rough machining for a smoother surface, while hot rolled bars are formed through high-temperature rolling, resulting in a rough, scaled surface. The choice between these two types of bars depends on the specific application and the desired properties, such as surface finish, strength, and adherence.

Q: What are the different grades of steel used in round bars?: There are various grades of steel used in round bars, each with its own unique properties and applications. Some commonly used grades include: 1. Mild Steel (Grade 1018): This is a low carbon steel with good machinability and weldability. It is often used in general engineering applications, such as construction, automotive, and machinery. 2. Carbon Steel (Grade 1045): Carbon steel is a medium carbon steel with high tensile strength and good wear resistance. It is commonly used in shafts, axles, gears, and other high-stress applications. 3. Alloy Steel (Grades 4140, 4340): Alloy steels contain additional elements such as chromium, molybdenum, or nickel to enhance their mechanical properties. These grades offer excellent strength, toughness, and wear resistance and are often used in applications that require high strength and durability, such as automotive parts, aircraft components, and industrial machinery. 4. Stainless Steel (Grades 304, 316): Stainless steel is a corrosion-resistant steel that contains a minimum of 10.5% chromium. It is widely used in various industries, including food processing, chemical, and medical, due to its excellent corrosion resistance, heat resistance, and aesthetic appeal. 5. Tool Steel (Grades A2, D2): Tool steels are specifically designed to have high hardness, wear resistance, and toughness. They are commonly used in the manufacturing of cutting tools, dies, and molds. These are just a few examples of the different grades of steel used in round bars. The selection of the appropriate grade depends on the specific application requirements, including strength, corrosion resistance, heat resistance, and machinability.

Q: Can steel round bars be used for shafts or axles?: Indeed, shafts or axles can make use of steel round bars. In a multitude of industries, including automotive, machinery, and construction, steel round bars are frequently employed due to their robustness, longevity, and adaptability. Their selection for shafts or axles often stems from their capacity to endure substantial loads, furnish dependable support, and endure wear and tear. By virtue of being machinable and amenable to heat treatment, steel round bars can be customized to meet specific prerequisites, rendering them well-suited for deployment as shafts or axles in a wide range of applications where strength and dependability are paramount, such as vehicles, industrial apparatus, and rotating machinery.

Q: Can steel round bars be used in the hospitality industry?: Yes, steel round bars can be used in the hospitality industry. They can be utilized for various applications such as constructing furniture, fixtures, and equipment, as well as for structural purposes in buildings and facilities. Steel round bars offer durability, strength, and versatility, making them suitable for use in various hospitality settings such as hotels, restaurants, and entertainment venues.

Q: Can steel round bars be used for making camshafts?: Yes, steel round bars can be used for making camshafts. Steel is a common material used for camshaft production due to its high strength, durability, and resistance to wear and fatigue. Steel round bars can be machined and shaped into the desired profile, making them suitable for manufacturing camshafts that are critical components in internal combustion engines. The specific type of steel used will depend on the application and performance requirements, but commonly used steels include alloy steels or carbon steels with high mechanical properties. Overall, steel round bars offer a reliable and cost-effective option for producing camshafts that can withstand the demanding conditions of engine operation.

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 due to their unique properties that make them suitable for this application. Heat exchangers are devices that transfer heat between two or more fluids, and steel round bars play a crucial role in their construction. One major use of steel round bars in heat exchangers is for the fabrication of the heat exchanger tubes. These tubes are responsible for carrying the fluids that need to be heated or cooled. Steel round bars are often used as the base material for these tubes due to their high strength and excellent heat transfer properties. The round shape of the bars allows for easy fabrication of the tubes, ensuring a tight and secure fit. Additionally, steel round bars are used to construct the headers and tube sheets of heat exchangers. The headers are the component that allows the fluid to enter and exit the heat exchanger, while the tube sheets hold the tubes in place. These components require high strength and durability to withstand the pressure and temperature differentials that occur during heat exchange. Steel round bars provide the necessary strength and stability to ensure the proper functioning of the heat exchanger. Furthermore, steel round bars are also used in the manufacturing of the support structures or frames of heat exchangers. These structures provide stability and support to the heat exchanger components and ensure proper alignment and positioning. Steel round bars offer excellent structural integrity and can withstand heavy loads, making them ideal for this purpose. In conclusion, steel round bars are an integral component in the manufacturing of heat exchangers. Their high strength, excellent heat transfer properties, and durability make them suitable for fabricating the tubes, headers, tube sheets, and support structures of heat exchangers. By utilizing steel round bars, manufacturers can ensure the efficiency, effectiveness, and longevity of heat exchangers in various industries, such as power generation, chemical processing, and HVAC systems.

Q: What are the different types of steel round bars used in the manufacturing of springs?: There are several different types of steel round bars commonly used in the manufacturing of springs. These include: 1. Carbon steel round bars: These are the most commonly used type of steel for springs. They have a high carbon content, typically ranging from 0.60% to 0.95%. Carbon steel round bars offer good strength and durability, making them suitable for a wide range of spring applications. 2. Alloy steel round bars: These are made by adding alloying elements such as chromium, manganese, nickel, or vanadium to carbon steel. Alloy steel round bars provide enhanced mechanical properties, including higher strength, toughness, and resistance to wear and corrosion. They are often used in heavy-duty or high-performance spring applications. 3. Stainless steel round bars: These are corrosion-resistant steel bars with a high chromium content (usually above 10.5%). Stainless steel round bars are popular for springs that require excellent resistance to rust, oxidation, and chemicals. They are commonly used in applications where hygiene, cleanliness, and aesthetic appeal are important, such as in the food and medical industries. 4. Spring steel round bars: These are specifically designed for spring manufacturing. They have a unique combination of properties, including high yield strength, good fatigue resistance, and excellent elasticity. Spring steel round bars are typically made from either carbon steel or alloy steel, depending on the specific requirements of the application. It is important to choose the right type of steel round bar based on factors such as the intended application, load requirements, environmental conditions, and desired spring performance. Consulting with a materials engineer or spring manufacturer can help determine the most suitable steel round bar for a specific spring manufacturing project.

Q: Can steel round bars be used in the manufacturing of heat exchangers?: Yes, steel round bars can be used in the manufacturing of heat exchangers. Steel is a commonly used material in heat exchanger construction due to its high strength and thermal conductivity. Steel round bars can be formed and welded into various shapes and sizes to create the necessary components of a heat exchanger, such as tubes, headers, and baffles. The steel material also provides durability and resistance to corrosion, making it suitable for use in various industrial applications where heat transfer is required.

Q: Can steel round bars be used in the shipbuilding industry?: Yes, steel round bars can be used in the shipbuilding industry. Steel round bars are commonly used in shipbuilding for various applications such as constructing hulls, decks, bulkheads, and other structural components. They offer excellent strength, durability, and corrosion resistance, making them ideal for withstanding the harsh marine environment. Steel round bars can be easily welded, machined, and formed into desired shapes, providing flexibility in ship construction. Additionally, their availability in various sizes and grades allows for customization to meet specific shipbuilding requirements. Overall, steel round bars are essential materials in the shipbuilding industry due to their robustness and reliability.

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