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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OKorder Financial Service
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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: What is the difference between a bright and a precision ground steel round bar?
- A bright steel round bar refers to a steel bar that has undergone a process called bright drawing, which involves passing the bar through a die to improve its surface finish and dimensional accuracy. On the other hand, a precision ground steel round bar is a bar that has been further processed by grinding to achieve extremely tight dimensional tolerances and a smooth surface finish. Therefore, the main difference lies in the level of surface finish and dimensional accuracy achieved through different manufacturing processes.
- Q: What is the difference between seamless and welded steel round bars?
- Seamless and welded steel round bars differ primarily in the manufacturing process and the resulting characteristics of the final product. Seamless steel round bars are manufactured by piercing a solid billet of steel to create a hollow tube. This tube is then elongated and further processed to achieve the desired dimensions and surface finish. The seamless manufacturing process ensures that there are no welds or joints along the length of the bar. As a result, seamless steel round bars have a uniform composition and structure throughout, providing excellent strength and reliability. They are often preferred when high pressure or high-temperature applications are involved, as they offer better resistance to internal and external pressure. On the other hand, welded steel round bars are made by joining two or more pieces of steel together through welding techniques. This involves heating the ends of the steel pieces and fusing them together using various welding methods, such as arc welding, resistance welding, or fusion welding. The welding process introduces a weld seam along the length of the bar, which can affect its structural integrity and mechanical properties. Welded steel round bars may have slightly lower strength and toughness compared to seamless bars, as the presence of the weld seam can create stress concentrations. However, they are generally more cost-effective and readily available in a wide range of sizes and grades. In summary, the main difference between seamless and welded steel round bars lies in their manufacturing process and resulting characteristics. Seamless bars are produced by piercing a solid billet, offering uniform composition and strength throughout, making them suitable for high-pressure and high-temperature applications. Welded bars, on the other hand, are created by joining multiple pieces of steel through welding, introducing a weld seam that can slightly affect their strength and toughness. Welded bars are often more cost-effective and readily available in various sizes and grades.
- Q: Can steel round bars be used for making bicycle frames?
- Yes, steel round bars can be used for making bicycle frames. Steel is a commonly used material for bicycle frames due to its strength, durability, and relatively low cost. Steel round bars can be shaped and welded together to create a sturdy and rigid frame that provides stability and support for the rider.
- Q: Can steel round bars be used for making decorative items?
- Yes, steel round bars can definitely be used for making decorative items. Steel round bars are versatile and can be shaped, bent, and welded to create various decorative designs. They offer durability and strength, making them suitable for both indoor and outdoor applications. Steel round bars can be used to make decorative furniture, sculptures, railings, gates, light fixtures, and much more. Their sleek and modern appearance adds an industrial and contemporary touch to any space. Additionally, steel round bars can be finished with different coatings or treatments, such as powder coating or patina, to enhance their visual appeal and protect them from corrosion. Therefore, steel round bars are an excellent choice for creating decorative items due to their versatility, strength, and ability to add a stylish and unique touch to any design.
- Q: What is the tensile strength of Q235 round steel?
- Nominal diameter 8-20 mm, yield point is greater than or equal to 235MPa, tensile strength greater than or equal to 370MPa, elongation is greater than or equal to 25%.
- Q: What are the advantages of using chromium-alloy steel round bars?
- There are several advantages to using chromium-alloy steel round bars. Firstly, chromium-alloy steel round bars have excellent corrosion resistance properties. The addition of chromium to the steel increases its ability to withstand corrosion and oxidation, making it suitable for use in harsh environments or applications where exposure to moisture or chemicals is a concern. This corrosion resistance helps to prolong the lifespan of the round bars, reducing maintenance and replacement costs. Secondly, chromium-alloy steel round bars offer high strength and durability. The alloying of chromium with steel enhances its mechanical properties, such as tensile strength, hardness, and toughness. This makes chromium-alloy steel round bars ideal for applications that require high strength and resistance to wear and tear, such as construction, heavy machinery, and automotive industries. Another advantage of using chromium-alloy steel round bars is their heat resistance. The addition of chromium improves the heat resistance of the steel, allowing it to maintain its strength and structural integrity even at elevated temperatures. This makes it suitable for use in high-temperature applications, such as furnace components, boilers, and heat exchangers. Furthermore, chromium-alloy steel round bars are known for their excellent machinability. The alloying elements in the steel enhance its ability to be easily machined, allowing for precise shaping and finishing. This makes it easier and more cost-effective to manufacture complex components or parts using chromium-alloy steel round bars. Lastly, chromium-alloy steel round bars are readily available in the market. Due to their popularity and wide range of applications, chromium-alloy steel round bars can be easily sourced from various suppliers. This availability ensures a consistent supply of the material, reducing production downtime and lead times. Overall, the advantages of using chromium-alloy steel round bars include corrosion resistance, high strength and durability, heat resistance, excellent machinability, and availability. These properties make chromium-alloy steel round bars a versatile and reliable choice for a wide range of applications in various industries.
- Q: What is the difference between a cold-drawn and a centerless ground steel round bar?
- A cold-drawn steel round bar and a centerless ground steel round bar are both types of steel bars that have undergone different manufacturing processes, resulting in different characteristics and properties. Cold-drawn steel round bars are produced by pulling a hot-rolled or annealed steel bar through a die to reduce its diameter and increase its length. This process improves the mechanical properties of the steel, making it stronger, more precise in dimensions, and with a smoother surface finish. Cold-drawn bars have a higher tensile strength, better surface finish, and tighter dimensional tolerances compared to hot-rolled bars. They are commonly used in applications where precision and strength are required, such as in automotive components, machinery parts, and construction materials. On the other hand, centerless ground steel round bars are produced by passing a cylindrical steel bar through a grinding machine without the need for centers or support. The grinding process removes surface imperfections and deviations in diameter, resulting in a precise and smooth finish. Centerless ground bars offer excellent dimensional accuracy, surface finish, and roundness. They are often used in applications where precision and tight tolerances are critical, such as in the manufacturing of bearings, shafts, and hydraulic cylinders. In summary, the main difference between a cold-drawn steel round bar and a centerless ground steel round bar lies in the manufacturing process and the resulting properties. Cold-drawn bars are formed by pulling the steel through a die, resulting in improved mechanical properties, tighter tolerances, and a smoother surface finish. Centerless ground bars are produced by grinding the steel to enhance dimensional accuracy, roundness, and surface finish. Both types of bars have their own advantages and are suited for different applications based on the required precision, strength, and surface finish.
- Q: Are steel round bars suitable for use in the mining industry?
- Yes, steel round bars are suitable for use in the mining industry. Steel round bars are known for their strength, durability, and resistance to wear and tear, making them ideal for various mining applications. They can be used in the construction of machinery, equipment, and infrastructure within mines, as well as for support structures such as mine shafts and tunnels. The high tensile strength of steel round bars allows them to withstand heavy loads and extreme conditions commonly encountered in mining operations.
- Q: What is the difference between steel and flat steel, round steel and steel?
- On the whole, the square section is square, flat section is rectangular, steel surface after finishing the round steel or steel wire (also called steel, silver bar).
- Q: What is the maximum phosphorus content allowed for steel round bars?
- The allowed phosphorus content in steel round bars is determined by the specific steel grade and industry standards, which can vary. Generally, the phosphorus content in steel round bars is typically limited to a maximum range of 0.04% to 0.05%. This limitation is necessary to maintain the desired mechanical properties, including strength, toughness, and ductility, of the steel product. Exceeding this phosphorus content can have negative consequences, such as reduced weldability, increased brittleness, and decreased corrosion resistance. To ensure the quality and performance of steel round bars in different applications, manufacturers and regulatory bodies establish stringent limits on phosphorus content. It is essential to refer to the relevant industry standards or specifications to determine the specific maximum phosphorus content permitted for a particular steel grade or application.
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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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