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: Can steel round bars be used in the manufacturing of marine propellers?: Yes, steel round bars can be used in the manufacturing of marine propellers. Steel is a commonly used material in the marine industry due to its high strength, durability, and corrosion resistance. Steel round bars can be machined and shaped into the desired propeller design, providing the necessary strength and stability required for marine applications. Additionally, steel can withstand the harsh conditions of saltwater environments, making it suitable for use in marine propellers.

Q: Can steel round bars be used for making steering linkages?: Making steering linkages is one application where steel round bars can be used. Steel round bars have a wide range of uses in automotive and mechanical engineering due to their strength, durability, and resistance to wear and tear. Steering linkages play a crucial role in a vehicle's steering system as they transmit the steering input from the steering wheel to the wheels. By using steel round bars, the necessary strength and rigidity are provided, ensuring efficient and reliable steering performance. However, it is important to consider other factors like specific design requirements, weight considerations, and desired level of flexibility or torsional properties when choosing the appropriate type and size of steel round bar for steering linkages.

Q: Can steel round bars be extruded?: Steel round bars cannot be extruded; instead, they are typically produced through a different process called hot rolling. In hot rolling, a cylindrical billet is heated and passed through a series of rollers to achieve the desired diameter and length. Extrusion, on the other hand, is a manufacturing process that involves forcing material through a die to create specific shapes or profiles. While steel can be extruded into various shapes such as tubes, channels, or angles, round bars are not typically produced in this way.

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: How do you prevent rust on steel round bars?: There are various effective methods available to prevent rust on steel round bars. Here are some strategies you can utilize: 1. Employ a protective coating: An effective way to prevent rust is by applying a protective coating such as paint, varnish, or enamel. These coatings act as a barrier, preventing moisture and oxygen from reaching the steel surface and causing rust. 2. Opt for galvanization: Galvanizing steel round bars involves coating them with a layer of zinc. This process creates a protective barrier, as the zinc acts as a sacrificial anode, corroding instead of the steel. Galvanized steel is highly resistant to rust and is commonly used in outdoor applications. 3. Utilize powder coating: Powder coating is another effective method of preventing rust on steel round bars. In this process, a dry powder is electrostatically applied to the steel surface, which is then cured under heat. The resulting coating provides excellent protection against rust and corrosion. 4. Maintain regular cleaning and maintenance: To prevent rust, it is important to regularly clean your steel round bars and remove any dirt, moisture, or other corrosive substances. Additionally, applying a rust inhibitor or lubricant can further protect the steel from corrosion. 5. Ensure proper storage: Proper storage of steel round bars is crucial in reducing the risk of rust. It is advisable to store them in a dry and well-ventilated area, avoiding direct contact with the ground or moisture-prone areas. Using pallets or racks to keep the steel elevated and properly spaced can also help prevent rust formation. 6. Avoid exposure to harsh environments: Exposing steel round bars to harsh environments, such as saltwater or acidic chemicals, significantly increases the risk of rust. If feasible, it is recommended to protect the steel from prolonged exposure to these substances or consider using a more corrosion-resistant material in such conditions. By implementing these preventive measures, you can effectively minimize the likelihood of rust formation on steel round bars, ensuring their durability and preserving their structural integrity.

Q: What are the different mechanical properties of steel round bars?: The different mechanical properties of steel round bars include tensile strength, yield strength, elongation, hardness, and impact resistance. Tensile strength refers to the maximum amount of stress a material can withstand before breaking. Yield strength is the stress at which a material begins to deform permanently. Elongation measures the amount of deformation a material can undergo before breaking. Hardness determines the material's resistance to indentation or scratching. Impact resistance is the ability of a material to absorb energy during sudden impacts without breaking.

Q: What are the different types of steel round bar alloys for improved hardness and strength?: Improved hardness and strength are characteristics associated with various types of steel round bar alloys. Some commonly used alloys renowned for these qualities include: 1. Carbon Steel: Exceptional strength and hardness make carbon steel a popular choice. Its higher carbon content enhances durability and resistance to wear and tear. 2. Alloy Steel: Combining carbon steel with elements like manganese, nickel, chromium, or vanadium results in alloy steel. These additions enhance hardness and strength, making it suitable for applications requiring high tensile strength and toughness. 3. Stainless Steel: With a minimum chromium content of 10.5%, stainless steel is a corrosion-resistant alloy. Chromium's addition improves hardness and strength, making it ideal for applications demanding resistance to corrosion, heat, and wear. 4. Tool Steel: Tool steel is tailor-made for manufacturing various tools. It boasts high hardness, wear resistance, and strength. Elements like tungsten, molybdenum, or vanadium are often added to enhance its performance. 5. High-Speed Steel: Developed specifically for high-speed cutting tools like drills and milling cutters, high-speed steel excels in hardness and retains its cutting edge even at high temperatures. 6. Maraging Steel: Maraging steel, a low-carbon, high-nickel alloy, stands out for its exceptional strength, toughness, and resistance to fatigue. It finds applications in industries like aerospace and defense that demand high strength and durability. These examples merely scratch the surface of the steel round bar alloys known for improved hardness and strength. The choice of alloy depends on the intended application and desired properties for the final product.

Q: What are the different types of steel alloys used for round bars?: There are various types of steel alloys used for round bars, including carbon steel, stainless steel, alloy steel, tool steel, and high-speed steel. Each type has unique properties and characteristics that make it suitable for different applications. Carbon steel is widely used for its strength and affordability, while stainless steel offers excellent corrosion resistance. Alloy steel is known for its durability and versatility, while tool steel is specifically designed for cutting and shaping tools. High-speed steel is used for its ability to withstand high temperatures and retain its hardness.

Q: What is the weight of a steel round bar?: The weight of a steel round bar depends on its dimensions, specifically its diameter and length. To calculate the weight, you can use the formula: weight = volume × density. To find the volume of the steel round bar, you can use the formula for the volume of a cylinder: volume = π × (diameter/2)^2 × length, where π is a mathematical constant approximately equal to 3.14159. The density of steel varies depending on the type and grade, but it is typically around 7.85 grams per cubic centimeter (g/cm³) or 7850 kilograms per cubic meter (kg/m³). By substituting the appropriate values into the formula, you can calculate the weight of the steel round bar in the desired unit (grams, kilograms, pounds, etc.).

Q: Can steel round bars be used for making cooling system components?: Certainly, cooling system components can be fabricated using steel round bars. Steel, being a versatile and resilient material, possesses the capability to endure elevated temperatures and pressures, rendering it ideal for cooling system applications. Steel round bars can be precisely shaped and dimensioned to meet the varying requirements of distinct cooling system components such as pipes, fittings, valves, and heat exchangers. Furthermore, steel exhibits exceptional thermal conductivity, enabling efficient heat transfer within cooling systems. However, it is vital to meticulously consider the specific demands of the cooling system and seek advice from engineers or professionals to ascertain the appropriate grade of steel and ensure compatibility with other system components.

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