HIGH QUALITY HOT ROLLED ROUND BAR Q235 ou Q195

HIGH QUALITY HOT ROLLED ROUND BAR Q235 ou Q195 System 1

HIGH QUALITY HOT ROLLED ROUND BAR Q235 ou Q195

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 25 m.t.

Supply Capability:: 20000000 m.t./month

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Round bar Details:

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

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

HIGH QUALITY HOT ROLLED ROUND BAR Q235 ou Q195

Q:What are the different types of steel round bar surface finishes?: There are several different types of surface finishes that can be applied to steel round bars. Some of the most common finishes include: 1. Bright: This finish involves polishing the steel round bar to a high gloss, resulting in a shiny and reflective surface. It is often used for decorative purposes or in applications where aesthetics are important. 2. Grinded: Grinded finishes involve using a grinding wheel or abrasive belt to remove the outer layer of the steel round bar, resulting in a smooth and even surface. This finish is often used to remove imperfections or to create a uniform surface for further processing. 3. Brushed: Brushed finishes involve using a wire brush or abrasive pad to create a pattern of fine lines on the surface of the steel round bar. This finish is often chosen for its unique aesthetic appeal and is commonly used in architectural applications. 4. Powder-coated: Powder coating involves applying a dry powder to the surface of the steel round bar and then curing it using heat. This finish provides a durable and corrosion-resistant coating that can be applied in various colors and textures. 5. Galvanized: Galvanizing is the process of applying a protective zinc coating to the steel round bar to prevent corrosion. This finish is commonly used in outdoor or marine applications where the steel is exposed to moisture or harsh environmental conditions. 6. Oiled: Oiled finishes involve applying a thin layer of oil to the surface of the steel round bar. This finish provides temporary protection against corrosion and is often used for short-term storage or transportation purposes. 7. Shot-blasted: Shot blasting involves propelling small metallic or non-metallic particles at high speeds onto the surface of the steel round bar. This process creates a textured finish that helps to improve adhesion of subsequent coatings or paints. Each type of surface finish has its own unique benefits and is chosen based on the specific requirements of the application.

Q:Can steel round bars be used in the pharmaceutical industry?: Yes, steel round bars can be used in the pharmaceutical industry. Steel round bars are commonly used in various industries, including pharmaceuticals, due to their strength, durability, and versatility. In the pharmaceutical industry, steel round bars can be utilized for a range of applications such as manufacturing equipment, machinery, and storage systems. These bars can be used to construct pharmaceutical manufacturing equipment like mixers, reactors, and centrifuges, which require robust and reliable materials to ensure efficiency and safety in pharmaceutical production processes. Additionally, steel round bars can be employed in the construction of storage systems such as racks and shelves, providing a sturdy and secure solution for organizing pharmaceutical products and supplies. The corrosion resistance and ease of cleaning of steel make it suitable for maintaining hygienic conditions in pharmaceutical facilities. Overall, steel round bars offer the pharmaceutical industry a reliable and cost-effective material option for various applications.

Q:How are steel round bars made?: Steel round bars are made through a process called hot rolling. It involves heating a large rectangular steel billet until it reaches a malleable temperature. The heated billet is then passed through a series of rolling stands, which progressively reduce its thickness and shape it into a round bar. The first step in the hot rolling process is heating the billet in a furnace at extremely high temperatures, typically around 1200 to 1300 degrees Celsius. This heat makes the steel more pliable and easier to shape. Once the billet is heated, it is fed into a rolling mill. The mill consists of a series of rollers that gradually reduce the thickness and elongate the billet. As the billet passes through each set of rollers, it is squeezed and stretched, gradually forming a round shape. The number of passes through the rolling mill depends on the desired final size and shape of the round bar. During the rolling process, the steel bar is also cooled to prevent overheating and ensure proper metallurgical properties. This can be done through a water spray or air cooling system. After the bar has been shaped and cooled, it is cut into desired lengths. The cut bars are then subjected to further processes such as straightening, surface treatment, and quality testing. These additional steps ensure that the steel round bars meet the required specifications and standards. Overall, the process of making steel round bars involves heating a steel billet, passing it through a series of rolling stands to shape it into a round bar, cooling it, and then cutting it into desired lengths. This process allows for the production of strong and durable round bars that find various applications in industries such as construction, manufacturing, and engineering.

Q:What is the composition of steel round bars?: Steel round bars are primarily composed of iron and carbon, with trace amounts of other elements such as manganese, silicon, sulfur, and phosphorus. The main component, iron, provides the strength and structural integrity of the steel bar. The carbon content plays a crucial role in determining the hardness and strength of the bar, with higher carbon content resulting in a harder and stronger material. Manganese contributes to the overall strength and toughness of the steel, while silicon helps improve its resistance to oxidation and scaling at high temperatures. Sulfur and phosphorus are impurities that are typically kept at low levels to prevent detrimental effects on the material's mechanical properties. Overall, the composition of steel round bars is carefully controlled to achieve the desired strength, durability, and other specific properties required for various applications.

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 for propellers due to its high strength, durability, and resistance to corrosion in marine environments. By using steel round bars, manufacturers can easily shape and form the propeller blades, ensuring optimal performance and longevity in marine applications.

Q:What is the difference between a smooth and a precision ground steel round bar?: A smooth steel round bar has a surface that is free from any roughness or irregularities, providing a polished and sleek appearance. On the other hand, a precision ground steel round bar undergoes a specialized grinding process to achieve tight tolerances and a high degree of accuracy in its dimensions. This precision grinding ensures that the bar has consistent diameter and smoothness throughout its length, making it suitable for applications that require precise measurements and tight fits.

Q:How do steel round bars perform under vibration or resonance?: Steel round bars have excellent performance under vibration or resonance due to their high strength and stiffness. They are able to withstand and absorb vibrations, minimizing the risk of failure or damage. Additionally, steel round bars possess good damping properties, which helps in dissipating energy and reducing the amplitude of vibrations, resulting in improved stability and reduced noise levels.

Q:How can a round steel weld on a flat steel plate be flat and qualified?: If it is full weld, for strong, don't groove. There must be no problem with the welding. If you hit the groove, it will deform. When welding, you should do spot welding and diagonal welding. I think you should be able to understand this, but I don't know what you are using for it,

Q:What are the maximum allowable stresses for steel round bars?: The maximum allowable stresses for steel round bars depend on various factors such as the grade of steel, the specific application, and the safety standards being followed. However, a commonly used value for allowable stress in steel round bars is typically around 60,000 to 70,000 pounds per square inch (psi). It is important to consult the appropriate design codes, standards, or engineering specifications to determine the specific maximum allowable stresses for a given steel round bar.

Q:How are steel round bars tested for tensile strength?: Steel round bars are tested for tensile strength through a process called tensile testing. This involves pulling the bar until it breaks, while measuring the amount of force applied. The results are then used to determine the maximum load the bar can withstand before fracturing, providing an indication of its tensile strength.

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