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: Are steel round bars suitable for use in the automotive industry?: Yes, steel round bars are suitable for use in the automotive industry. Steel round bars offer several advantages that make them ideal for automotive applications. Firstly, steel round bars provide excellent strength and durability, which are crucial for automotive components that need to withstand high levels of stress and impact. The high tensile strength of steel ensures that these components can handle the demanding conditions of the automotive industry, such as heavy loads and harsh environments. Secondly, steel round bars have good machinability, allowing them to be easily shaped and fabricated into various automotive parts. This versatility is essential for creating components with complex geometries, such as crankshafts, axles, and suspension components. Furthermore, steel round bars offer superior dimensional stability, ensuring that automotive parts maintain their shape and performance over time. This is particularly important for critical components that need to meet precise specifications and tolerances. Additionally, steel round bars have excellent heat resistance, making them suitable for applications that involve high temperatures, such as engine components and exhaust systems. The thermal stability of steel ensures that these parts can operate efficiently and reliably under extreme heat conditions. Moreover, steel is readily available and cost-effective compared to other materials, making it an attractive choice for the automotive industry. The abundance of steel resources and the well-established manufacturing processes contribute to its affordability, making it a practical option for mass production. In conclusion, steel round bars are highly suitable for use in the automotive industry due to their strength, durability, machinability, dimensional stability, heat resistance, and cost-effectiveness. These qualities make steel round bars an excellent choice for various automotive components, contributing to the overall performance, safety, and longevity of vehicles.

Q: Round bar, flat steel, not reinforced: All belong to section steel. Round steel can be used as reinforcing steel, which is often referred to as light round bar and primary steel. Flat steel is finished steel, not steel.

Q: What are the advantages of using nickel-chromium-silicon alloy steel round bars?: Using nickel-chromium-silicon alloy steel round bars offers several benefits: 1. Exceptional heat resistance: These round bars can withstand extreme temperatures up to 1200°C without compromising their strength or structure. This makes them ideal for applications in high-temperature environments. 2. Effective against corrosion: The alloy steel round bars exhibit good resistance to corrosive substances like acids and alkalis. This makes them suitable for industries such as chemical processing, oil and gas, and marine applications. 3. Strong and durable: These round bars possess high tensile strength and toughness, enabling them to endure heavy loads and resist deformation. They are known for their exceptional durability, ensuring a long service life even in demanding conditions. 4. Impressive mechanical properties: The alloy steel round bars display excellent mechanical properties, including ductility, impact resistance, and fatigue strength. This makes them suitable for applications requiring reliability and high performance, such as structural components, machine parts, and tools. 5. Easy to fabricate: The nickel-chromium-silicon alloy steel round bars can be machined, welded, and formed into various shapes and sizes with ease. This grants manufacturers greater design flexibility and simplifies fabrication processes. 6. Cost-effective solution: Despite their numerous advantages, nickel-chromium-silicon alloy steel round bars are relatively cost-effective compared to other high-performance materials. Their longevity and resistance to wear and tear reduce the need for frequent replacements and maintenance, making them a cost-efficient choice in the long run. Overall, the advantages of nickel-chromium-silicon alloy steel round bars make them an excellent option for applications requiring high temperature resistance, corrosion resistance, strength, durability, and ease of fabrication.

Q: What is the fatigue strength of a steel round bar?: The fatigue strength of a steel round bar denotes its capacity to endure repeated or cyclic loading without failure. It gauges the bar's resistance to fatigue or fatigue-induced failure. Various factors, including material composition, manufacturing process, surface finish, and geometry of the bar, influence the fatigue strength of a steel round bar. To ascertain the fatigue strength, standardized fatigue tests are typically performed. These tests replicate real-world conditions by subjecting the bar to repeated loading cycles. A specific stress amplitude or stress range is applied to the bar, and the number of cycles needed to cause failure is recorded. The fatigue strength of a steel round bar is commonly expressed as the stress level or stress range at which failure occurs after a specific number of cycles, such as 10^6 cycles or 10^7 cycles. This value is often referred to as the fatigue limit or endurance limit. Steel round bars generally possess high fatigue strength compared to other materials, and the measurement is typically in terms of stress, either in megapascals (MPa) or pounds per square inch (psi). It is crucial to note that the fatigue strength of a steel round bar can fluctuate based on variables like surface defects, residual stresses, temperature, and environmental conditions. Hence, considering these factors is imperative when determining the fatigue strength of a particular steel round bar for a given application.

Q: What are the advantages of using nitriding steel round bars?: There are several advantages of using nitriding steel round bars. Firstly, nitriding steel round bars have a high surface hardness, which makes them resistant to wear, abrasion, and scratching. This makes them ideal for applications where the material needs to withstand harsh conditions and maintain its integrity over time. Additionally, nitriding steel round bars have improved fatigue and impact strength, making them suitable for heavy-duty applications. They also exhibit good heat resistance and can withstand high temperatures without losing their mechanical properties. Moreover, nitriding steel round bars have excellent corrosion resistance, reducing the need for frequent maintenance and replacement. Overall, the use of nitriding steel round bars offers enhanced durability, strength, and reliability, making them a preferred choice in various industries.

Q: Can steel round bars be used in the textile industry?: Limited applications exist where steel round bars can be utilized in the textile industry. Although textiles are mainly composed of natural or synthetic fibers, steel round bars can be employed in the machinery and equipment employed in textile production. These bars commonly serve as the foundation for frames, supports, and other structural components of textile machinery. For instance, steel round bars can be employed to construct the frames of looms, which are essential for fabric weaving. Additionally, they can be integrated into the fabrication of spinning machines, knitting machines, and other textile manufacturing equipment. Furthermore, steel round bars can function as a base or support for textile drying racks, storage systems, or conveyor systems. The strength and durability of steel make it an appropriate material for withstanding the rigorous demands of industrial textile production. However, it is worth noting that steel round bars are not directly incorporated into the fabric or textile products themselves.

Q: What is the impact strength of a steel round bar?: The impact strength of a steel round bar refers to its ability to withstand sudden applied forces or shock loads without fracturing or breaking. It is usually measured in terms of energy absorbed during impact testing, such as the Charpy or Izod test. The exact impact strength can vary depending on the specific grade and heat treatment of the steel, but steel round bars are generally known for their high impact strength, making them suitable for applications requiring resistance to sudden impacts or dynamic loads.

Q: How are steel round bars used in the manufacturing of lifting equipment?: Steel round bars are commonly used in the manufacturing of lifting equipment due to their strength, durability, and versatility. These bars are typically made from high-quality steel alloys, such as carbon steel or alloy steel, which provide the necessary strength and toughness required for lifting heavy loads. In the manufacturing process, steel round bars are often used as the main structural component of lifting equipment such as cranes, hoists, and lifting hooks. They are utilized to create the frame and support structures that provide the necessary stability and load-bearing capacity. Steel round bars are also employed to fabricate various lifting components, such as shafts, axles, and pins, which play a crucial role in the proper functioning of lifting equipment. These components are designed to withstand high levels of stress and strain, and the use of steel round bars ensures that they can handle heavy loads without deformation or failure. Additionally, steel round bars are frequently utilized to manufacture lifting hooks and chains. Lifting hooks are crucial for attaching the load to the lifting equipment, while chains are used to secure and lift the load. Steel round bars provide the necessary strength and rigidity to handle the weight of the load, ensuring safe and efficient lifting operations. Furthermore, steel round bars can be machined, forged, or heat-treated to achieve specific mechanical properties required for lifting equipment manufacturing. This allows manufacturers to tailor the characteristics of the bars to meet the specific requirements of different lifting applications, such as the ability to withstand high temperatures or resist corrosion. Overall, steel round bars are an essential component in the manufacturing of lifting equipment. Their strength, durability, and versatility make them ideal for creating the structural frames, support structures, and lifting components necessary for safe and efficient lifting operations.

Q: Can steel round bars be used for making storage tanks?: Yes, steel round bars can be used for making storage tanks. Steel is a versatile and widely used material in various industries, including the manufacturing of storage tanks. Steel round bars are known for their strength, durability, and resistance to corrosion, making them suitable for storing a wide range of substances, including liquids and gases. The round shape of the bars allows for easy fabrication and assembly, ensuring the structural integrity of the storage tank. Additionally, steel round bars can be easily welded or bolted together, allowing for customization and flexibility in tank design. Overall, steel round bars are a popular choice for making storage tanks due to their reliability, longevity, and ability to withstand high pressure and extreme environmental conditions.

Q: What are the different heat treatment processes used for steel round bars?: Some of the different heat treatment processes used for steel round bars include annealing, quenching, tempering, normalizing, and hardening. Each process involves heating and cooling the steel to alter its properties such as hardness, strength, and ductility. Annealing involves heating the steel and slowly cooling it to relieve internal stresses and improve machinability. Quenching involves rapidly cooling the steel to increase its hardness. Tempering is a process that involves reheating the quenched steel to reduce brittleness and improve toughness. Normalizing is similar to annealing but involves air cooling instead of slow cooling. Hardening is a process that involves heating the steel and then rapidly cooling it to increase its hardness and strength.

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