ROUND BAR HIGH QUALITY Q235

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Loading Port:: China Main Port

Payment Terms:: TT OR LC

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Supply Capability:: -

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Round bar Details:

Minimum Order Quantity:		Unit:	m.t.	Loading Port:
Supply Ability:		Payment Terms:		Package:	Bundle

Product Description:

Wire Rod Q235 Details:

Minimum Order Quantity:	25 Tons	Unit:	m.t.	Loading Port:	XINGANG PORT,China
Supply Ability:	100,000 Tons Per Month	Payment Terms:	TT or LC

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 advantages of using tin-alloy steel round bars?: There are several advantages to using tin-alloy steel round bars: 1. Enhanced corrosion resistance: Tin-alloy steel round bars have excellent corrosion resistance properties due to the presence of tin. This makes them suitable for various applications in industries such as marine, automotive, and construction, where exposure to moisture, chemicals, or harsh environments is common. 2. Improved machinability: Tin-alloy steel round bars are known for their superior machinability. The addition of tin to the steel composition enhances its ability to be cut, drilled, and shaped more easily, reducing tool wear and increasing productivity during machining processes. 3. Increased strength and durability: The alloying of tin with steel enhances its strength and durability. Tin-alloy steel round bars have higher tensile strength and hardness compared to regular steel bars, making them more resistant to wear, deformation, and fatigue. This makes them suitable for heavy-duty applications and ensures longevity. 4. Excellent thermal conductivity: Tin-alloy steel round bars exhibit excellent thermal conductivity properties. This makes them ideal for applications that require efficient heat transfer, such as heat exchangers, radiators, and engine components. 5. Lower friction coefficient: Tin-alloy steel round bars have a lower friction coefficient compared to regular steel bars. This feature makes them suitable for applications where minimizing friction is crucial, such as in bearings, shafts, and gears, resulting in reduced energy consumption and increased operational efficiency. 6. Cost-effective alternative: Tin-alloy steel round bars offer a cost-effective alternative to more expensive materials such as stainless steel or brass. They provide similar performance characteristics at a lower price point, making them a viable choice for various applications without compromising on quality. In summary, the advantages of using tin-alloy steel round bars include enhanced corrosion resistance, improved machinability, increased strength and durability, excellent thermal conductivity, lower friction coefficient, and cost-effectiveness. These properties make them a versatile and reliable choice for a wide range of applications across different industries.

Q: What are the different types of steel round bar surface coatings?: Enhancing the performance and durability of steel round bars commonly involves utilizing various surface coatings. These coatings serve as a protective layer, safeguarding against corrosion and improving the overall appearance. Several types of surface coatings are frequently employed, including: 1. Galvanized Coating: This method entails applying a zinc layer to the steel round bar. It boasts exceptional corrosion resistance, making it ideal for outdoor applications that expose the steel to moisture and harsh environmental conditions. 2. Powder Coating: In this process, a dry powder is applied to the steel round bar and then cured under heat. The result is a robust and visually appealing finish that resists chipping, scratching, and fading. Powder coating offers a wide range of colors and textures, making it a popular choice for decorative purposes. 3. Epoxy Coating: An application of liquid thermosetting polymer, which subsequently cures to form a protective layer, characterizes epoxy coating. This type of coating exhibits excellent resistance to corrosion and chemicals, making it suitable for use in harsh environments. Industries such as oil and gas, marine, and chemical processing frequently employ epoxy coatings. 4. Chrome Plating: Chrome plating involves electroplating a chromium layer onto the steel round bar. This coating provides superior corrosion resistance and enhances the steel's appearance. Chrome plating is commonly utilized in applications where both corrosion protection and aesthetics are crucial, such as automotive parts and decorative hardware. 5. Nickel Plating: Similar to chrome plating, nickel plating involves electroplating a nickel layer onto the steel round bar. This coating offers exceptional corrosion resistance and is often utilized in applications where the steel is exposed to harsh chemicals or extreme temperatures. These examples only scratch the surface of the available options for steel round bar surface coatings. The choice of coating depends on the specific requirements of the application, including the desired level of corrosion resistance, chemical resistance, and aesthetic appeal. Selecting the appropriate coating based on the intended use of the steel round bar ensures optimal performance and longevity.

Q: Can steel round bars be used in the production of springs?: Yes, steel round bars can be used in the production of springs. Steel is a common material used in the manufacturing of springs due to its high strength and durability. Steel round bars are often used to create the base material for springs, as they can be easily shaped and formed into the desired spring shape. Additionally, steel round bars can be heat-treated to enhance their mechanical properties, making them suitable for various spring applications. The specific type of steel used will depend on the desired characteristics and requirements of the spring, such as the desired level of flexibility and resistance to deformation. Overall, steel round bars are widely utilized in the production of springs due to their excellent mechanical properties, making them a suitable choice for many spring applications.

Q: How are steel round bars heat treated?: Steel round bars are heat treated to increase their strength and hardness while also improving their mechanical properties. The heat treatment process typically involves three main steps: heating, soaking, and cooling. Firstly, the steel round bars are heated to a specific temperature, known as the austenitizing temperature. This temperature is usually above the critical temperature of the steel, which allows the material to transform into its austenite phase. The austenitizing temperature varies depending on the type of steel and the desired properties. Once the steel round bars reach the austenitizing temperature, they are soaked at this temperature for a specific duration. The soaking time allows for the complete transformation of the microstructure, ensuring uniformity and avoiding any thermal gradients within the material. The soaking time is crucial in determining the final properties of the steel. After the soaking period, the steel round bars are rapidly cooled in a process called quenching. Quenching is typically done by immersing the bars in a quenching medium, such as oil, water, or air, depending on the desired hardness and properties. The quenching process rapidly cools the bars, causing a martensitic transformation in the steel's microstructure. This transformation results in increased hardness and strength. Following quenching, the steel round bars may undergo an additional step called tempering. Tempering involves reheating the bars to a lower temperature, typically below the austenitizing temperature. This step aims to reduce the brittleness caused by the quenching process while further improving the material's toughness and ductility. Overall, the heat treatment process for steel round bars involves heating to the austenitizing temperature, soaking for a specific duration, quenching to rapidly cool and harden the material, and potentially tempering to achieve the desired properties. This process allows for the customization and enhancement of the steel's mechanical properties, making it suitable for various applications.

Q: Can steel round bars be used for making bearings?: No, steel round bars cannot be used for making bearings. Bearings require materials with specific properties such as hardness, smoothness, and low friction, which are not typically found in steel round bars. Bearing materials like stainless steel, ceramics, or specialized alloys are used instead.

Q: Can steel round bars be hardened and tempered?: Yes, it is possible to harden and temper steel round bars. Hardening and tempering are heat treatments that can enhance the hardness and strength of steel. To harden a steel round bar, it must be heated to a high temperature and then rapidly cooled, typically through quenching in water, oil, or air. This procedure alters the steel's structure, resulting in increased hardness and brittleness. However, the hardened steel round bar may be too brittle for many applications. To address this issue and improve its toughness, the hardened steel is subjected to tempering. Tempering entails reheating the steel to a specific temperature and holding it at that temperature for a designated period before allowing it to cool naturally. This process enables the steel to partially soften and alleviate internal stresses, thereby enhancing toughness and ductility. The hardness and tempering temperature can be adjusted to achieve desired mechanical properties for various applications. By employing the hardening and tempering process, steel round bars with different levels of hardness, strength, and toughness can be produced to meet specific engineering requirements.

Q: What are the environmental impacts of steel round bar production?: The environmental impacts of steel round bar production are significant. The production process involves mining iron ore, which requires deforestation and habitat destruction. The extraction process also generates large amounts of waste and releases harmful pollutants into the air and water. Additionally, the energy-intensive manufacturing process contributes to greenhouse gas emissions, contributing to climate change. Disposing of the waste generated during production poses further challenges, as it can contaminate soil and water sources. Overall, steel round bar production has a substantial ecological footprint and requires careful consideration of sustainable practices to minimize its environmental impacts.

Q: Can steel round bars be plated?: Yes, steel round bars can be plated. Plating is a common process used to enhance the appearance, corrosion resistance, and durability of steel round bars.

Q: What are the advantages of using nickel-cobalt alloy steel round bars?: Using nickel-cobalt alloy steel round bars has several benefits: 1. Exceptional strength and toughness: Nickel-cobalt alloy steel round bars are incredibly strong and tough, making them ideal for heavy-duty applications. The addition of nickel and cobalt enhances the overall strength and hardness of the steel, enabling it to withstand high stress and pressure. 2. Excellent resistance to corrosion: Nickel-cobalt alloy steel is highly resistant to corrosion and oxidation. This makes it the preferred choice in environments where exposure to moisture, chemicals, or harsh weather conditions is common. Its resistance to corrosion ensures durability and longevity, reducing the risk of rust or deterioration. 3. Superior heat resistance: Nickel-cobalt alloy steel round bars possess exceptional heat resistance properties. They can withstand high temperatures without compromising their structural integrity, making them suitable for heat treatment applications like forging or welding. This heat resistance ensures that the bars maintain their mechanical properties even under extreme thermal conditions. 4. Enhanced wear resistance: The combination of nickel and cobalt in the alloy enhances its resistance to wear. Nickel-cobalt alloy steel round bars exhibit excellent resistance to abrasion, erosion, and fatigue, making them ideal for industries such as mining, construction, and automotive, where wear and tear are common. 5. Easy machinability: Nickel-cobalt alloy steel round bars are relatively easy to machine and fabricate. This makes them suitable for various manufacturing processes, including cutting, drilling, and shaping. The alloy's machinability allows for efficient production and reduces manufacturing costs. 6. Versatility for diverse applications: Nickel-cobalt alloy steel round bars have a wide range of applications due to their versatile properties. They can be used in industries such as aerospace, marine, oil and gas, automotive, and power generation. The alloy's combination of strength, corrosion resistance, and heat resistance makes it adaptable to various environments and demanding applications. In conclusion, nickel-cobalt alloy steel round bars offer numerous advantages, including exceptional strength, corrosion resistance, heat resistance, wear resistance, easy machinability, and versatility. These properties make them the preferred choice for various industrial applications, ensuring durability, reliability, and high-performance levels.

Q: What are the common defects found in steel round bars?: Some common defects found in steel round bars include surface cracks, internal voids or inclusions, dimensional variations, and improper heat treatment. Other defects may include decarburization, surface scaling, or surface pitting. These defects can affect the mechanical properties and performance of the steel bars, potentially leading to reduced strength, brittleness, or failure under stress. Regular quality control and inspection processes are necessary to identify and address these defects to ensure the integrity and reliability of the steel round bars.

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