Chinese Standard Round Bar of Grade: Q195, Q235, Q345
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 5000 m.t./month
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Product Description:
OKorder is offering Chinese Standard Round Bar of Grade: Q195, Q235, Q345 at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.
Product Applications:
Chinese Standard Round Bar of Grade: Q195, Q235, Q345 are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's Chinese Standard Round Bar of Grade: Q195, Q235, Q345 are durable, strong, and resist corrosion.
Main Product Features:
· Premium quality
· Prompt delivery & seaworthy packing (30 days after receiving deposit)
· Corrosion resistance
· Can be recycled and reused
· Mill test certification
· Professional Service
· Competitive pricing
Specifications of Chinese Standard Round Bar of Grade: Q195, Q235, Q345
1. Grade: Q195, Q235, Q345
2. Diameter: 6mm-150mm
3. Length: 6m, 9m, 12m or as customer’s request
4. Tolerance: Within ±5% for weight; ±2mm for diameter
5. Note: The price can be better is the quantity is good
6. Chemical composition
Alloy No | Element (%) | ||||
C | Mn | S | P | Si | |
Q195 | 0.06-0.12 | 0.25 | ≤0.05 | ≤0.045 | ≤0.3 |
Q235 | 0.12—0.20 | 0.3—0.7 | ≤0.045 | ≤0.045 | ≤0.3 |
Q345 | ≤0.2 | 1.00-1.60 | ≤0.045 | ≤0.045 | ≤0.55 |
Usage and Applications of Chinese Standard Round Bar of Grade: Q195, Q235, Q345
1. Chinese standard steel bar is often used where large amounts of steel need to be formed, for example as structural steel.
2. And we can use this kind of product on the performance of the mechanical parts if the demand is not very high.
3. Steel round bar is used in construction and a large number of architectural and engineering structures.
Packaging & Delivery of Chinese Standard Round Bar of Grade: Q195, Q235, Q345
Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: 45 days
Trade terms: FOB, CFR, CIF
MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
Production Flow of Chinese Standard Round Bar of Grade: Q195, Q235, Q345
1. The common processes are preheated forging quenching, dual refinement solution process, cooling quenching and isothermal quenching. We use heat treatment for dual refinement solution process.
2. Material prepare (billet) — heat up — rough rolling — precision rolling — cooling — packing — storage and transportation
Characteristics of Chinese Standard Round Bar of Grade: Q195, Q235, Q345
1. The steel in which the main interstitial alloying constituent is carbon in the range of 0.12–2.0%.
2. As the carbon percentage content rises, steel has the ability to become harder and stronger through heat treating; however it becomes less ductile.
3. Quality should be in conformity with the specification of the manufacturer. Quantity and packing conditions should be in conformity with the term in the contract.
4. Regardless of the heat treatment, higher carbon content reduces weld ability. In carbon steels, the higher carbon content lowers the melting point.
FAQ:
Q1: Why buy Materials & Equipment from OKorder.com?
A1: All products offered byOKorder.com are carefully selected from China's most reliable manufacturing enterprises. Through its ISO certifications, OKorder.com adheres to the highest standards and a commitment to supply chain safety and customer satisfaction.
Q2: How do we guarantee the quality of our products?
A2: We have established an advanced quality management system which conducts strict quality tests at every step, from raw materials to the final product. At the same time, we provide extensive follow-up service assurances as required.
Q3: How soon can we receive the product after purchase?
A3: Within three days of placing an order, we will begin production. The specific shipping date is dependent upon international and government factors, but is typically 7 to 10 workdays.
- Q: Are steel round bars suitable for machining?
- Indeed, machining is a suitable application for steel round bars. Due to their remarkable machinability, steel round bars are frequently employed in diverse machining procedures. These bars can be effortlessly molded, sliced, bored, and rotated using various machining methods like milling, turning, drilling, and grinding. By offering commendable dimensional stability, exceptional strength, and outstanding wear resistance, steel round bars prove to be an ideal choice for machining operations. Moreover, the availability of different grades and alloys further expands the scope of machining applications in industries spanning automotive, aerospace, construction, and manufacturing.
- Q: Can steel round bars be used for shafts or axles?
- Yes, steel round bars can be used for shafts or axles. Steel round bars are commonly used in various industries, including automotive, machinery, and construction, for their strength, durability, and versatility. They are often chosen for shafts or axles due to their ability to withstand heavy loads, provide reliable support, and resist wear and tear. Steel round bars can be machined and heat-treated to meet specific requirements, making them suitable for use as shafts or axles in various applications where strength and reliability are crucial, such as in vehicles, industrial equipment, and rotating machinery.
- Q: What's the difference between pure iron round steel and electromagnetic pure iron bar?
- One thing, one thing, the same thing is round. However, in the general industry, about 30 of the habit is called bar,
- Q: What is the minimum tensile strength of steel round bars?
- The specific grade of steel being used can cause variations in the minimum tensile strength of steel round bars. Nevertheless, a majority of steel round bars typically possess a minimum tensile strength of approximately 400 megapascals (MPa) or 58,000 pounds per square inch (psi). It is worth mentioning that this represents the bare minimum, as various grades of steel can possess higher tensile strengths to meet specific applications or requirements.
- Q: What are the applications of steel round bars in the aerospace industry?
- Steel round bars are widely used in the aerospace industry due to their exceptional strength, durability, and versatility. These bars are utilized in various applications, including: 1. Structural Components: Steel round bars are commonly used in the production of structural components in the aerospace industry. They are used for manufacturing aircraft frames, landing gear, wing spars, and other critical structural elements. The high tensile strength of steel ensures the structural integrity and safety of the aircraft. 2. Fasteners: Steel round bars are also used to produce fasteners such as bolts, screws, and pins. These fasteners play a crucial role in holding different parts of the aircraft together. Steel's strength and resistance to fatigue make it an ideal material for these critical connections. 3. Engine Components: Steel round bars find application in the production of various engine components. They are used to manufacture shafts, crankshafts, connecting rods, and turbine blades. These components need to withstand high temperatures, pressure, and mechanical stress, and steel's heat resistance and strength make it suitable for these demanding conditions. 4. Landing Gear: The landing gear of an aircraft is subjected to immense stress during takeoff, landing, and taxiing. Steel round bars are used in the construction of landing gear components such as axles and struts. The high strength and toughness of steel ensure the landing gear's ability to withstand the forces encountered during landing operations. 5. Tooling and Fixtures: Steel round bars are used to manufacture tooling and fixtures necessary for the production and maintenance of aircraft. These tools and fixtures are employed in various processes, including machining, assembly, and inspection. Steel's hardness and machinability make it an ideal material for these applications. In summary, steel round bars have numerous applications in the aerospace industry, ranging from structural components to fasteners, engine parts, landing gear, and tooling. The unique combination of strength, durability, and versatility offered by steel makes it an essential material in ensuring the performance, safety, and reliability of aerospace systems.
- Q: What are the different types of surface treatments for steel round bars?
- There are several different types of surface treatments available for steel round bars, each with its own benefits and applications. Some of the most common surface treatments for steel round bars include: 1. Galvanization: This process involves coating the steel round bars with a layer of zinc, which provides excellent corrosion resistance. Galvanized steel round bars are commonly used in outdoor and marine applications. 2. Black oxide coating: This treatment involves chemically converting the surface of the steel round bars to a black iron oxide layer. It provides increased corrosion resistance and a visually appealing black finish. Black oxide coated steel round bars are often used in decorative applications. 3. Grinding: Grinding is a surface treatment that involves removing the outer layer of the steel round bars through abrasive materials. This process improves the surface finish of the bars, making them smoother and more aesthetically pleasing. 4. Shot blasting: In shot blasting, small metallic or non-metallic particles are propelled at high velocity onto the surface of the steel round bars. This treatment removes mill scale, rust, and other impurities, resulting in a clean and uniform surface. 5. Chrome plating: Chrome plating involves depositing a layer of chromium onto the surface of the steel round bars. This treatment provides excellent corrosion resistance and a polished, mirror-like finish. Chrome plated steel round bars are commonly used in applications where aesthetics and corrosion resistance are important. 6. Powder coating: Powder coating is a process where a dry powder is applied electrostatically to the steel round bars and then cured under heat. This treatment creates a durable and attractive finish, offering resistance to corrosion, chemicals, and UV rays. 7. Passivation: Passivation is a chemical treatment that removes iron and other contaminants from the surface of steel round bars, leaving a clean and corrosion-resistant layer. This treatment is commonly used in the medical and food industries, where cleanliness and corrosion resistance are crucial. These are just a few examples of the various surface treatments available for steel round bars. The choice of treatment depends on the specific requirements of the application, such as corrosion resistance, aesthetics, and durability.
- Q: What is the yield strength to tensile strength ratio of a steel round bar?
- The yield-to-tensile ratio, also known as the ratio of yield strength to tensile strength, is a significant mechanical property for evaluating the resilience of a steel round bar under tension. This ratio reflects the material's capacity to withstand deformation before failure. Generally, the yield strength represents the stress at which plastic deformation begins, while the tensile strength denotes the maximum stress the material can endure before fracturing. The yield-to-tensile ratio is determined by dividing the yield strength by the tensile strength. The yield-to-tensile ratio varies depending on the specific grade and composition of the steel. However, for most common structural steels, this ratio typically falls within the range of 0.6 to 0.8. In other words, the yield strength is generally around 60% to 80% of the ultimate tensile strength. A higher yield-to-tensile ratio indicates a more ductile and less brittle steel, as it suggests that the material can undergo substantial plastic deformation before ultimate failure. Conversely, a lower yield-to-tensile ratio implies a more brittle steel that is prone to fracture at lower levels of deformation. It is important to emphasize that the yield-to-tensile ratio is just one of several factors to consider when assessing the mechanical properties of a steel round bar. Other factors, such as hardness, toughness, and elongation, also play significant roles in determining the overall performance and suitability of the steel for a specific application.
- Q: How are steel round bars used in the construction of bridges and buildings?
- Steel round bars are widely used in the construction of bridges and buildings due to their strength, durability, and versatility. These bars are typically made of carbon steel and have a circular cross-section, making them perfect for structural applications. In bridge construction, steel round bars are commonly used for reinforcing concrete structures. They are often embedded within concrete beams, columns, and slabs to enhance their load-bearing capacity and resist bending and shearing forces. The bars are placed strategically in the concrete to provide tensile strength, which complements the compressive strength of the concrete. This reinforcement ensures that the bridge can withstand heavy loads and traffic while maintaining its structural integrity. Similarly, in building construction, steel round bars play a crucial role in reinforcing concrete structures. They are commonly used in the construction of columns, beams, and foundations to increase their load-carrying capacity and prevent structural failure. The bars are typically added to the concrete during the pouring process, forming a sturdy framework that enhances the building's strength and stability. Moreover, steel round bars are also used to create steel frames in the construction of buildings. These frames provide the skeletal structure of the building and support the weight of the floors, walls, and roofs. Steel round bars, due to their high strength-to-weight ratio, are ideal for creating lightweight yet robust frames that can withstand various loads, including wind and seismic forces. Additionally, steel round bars are used for other purposes in construction, such as the fabrication of steel reinforcements, connectors, and fasteners. They can be welded, bolted, or threaded to join different structural elements together, ensuring a secure and sturdy construction. Overall, steel round bars are an essential component in the construction of bridges and buildings. They provide the necessary strength, durability, and flexibility required to create structurally sound and long-lasting structures.
- Q: Can steel round bars be used for making conveyor belts?
- No, steel round bars are not suitable for making conveyor belts as they lack the necessary flexibility and surface properties required for effective and efficient conveyor belt operation. Conveyor belts are typically made from materials such as rubber or synthetic fabrics that provide durability, grip, and flexibility to facilitate the movement of goods.
- Q: Can steel round bars be hardened through heat treatment?
- Steel round bars can indeed be hardened by undergoing heat treatment. This process entails heating the steel to a specific temperature and then swiftly cooling it to achieve the desired level of hardness and strength. Various heat treatment techniques, such as quenching and tempering, can be employed to harden steel round bars. In quenching, the steel is heated to a critical temperature and then rapidly cooled in a liquid medium, such as oil or water, to attain maximum hardness. On the other hand, tempering involves reheating the quenched steel to a lower temperature in order to reduce brittleness and enhance toughness, while still maintaining the desired hardness level. By subjecting steel round bars to heat treatment, their mechanical properties can be significantly improved, making them suitable for a wide range of applications that demand high levels of strength and hardness.
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Chinese Standard Round Bar of Grade: Q195, Q235, Q345
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 100 m.t.
- Supply Capability:
- 5000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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