• Chinese Standard High Prime Round Bar Steel System 1
  • Chinese Standard High Prime Round Bar Steel System 2
  • Chinese Standard High Prime Round Bar Steel System 3
  • Chinese Standard High Prime Round Bar Steel System 4
  • Chinese Standard High Prime Round Bar Steel System 5
Chinese Standard High Prime Round Bar Steel

Chinese Standard High Prime Round Bar Steel

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Product Description:

OKorder is offering Chinese Standard High Prime Round Bar Steel 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 High Prime Round Bar Steel 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 Steel Chinese Standard High Prime Round Bar Steel 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

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

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

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

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

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 hardness of a steel round bar?
The hardness of a steel round bar may differ depending on the type of steel and the manufacturing process utilized. To measure the hardness of steel, the Rockwell hardness scale is commonly employed. This scale determines the depth of indentation caused by a specific load on a diamond or steel ball. Steel round bars generally exhibit hardness values ranging from approximately 20 to 60 Rockwell C (HRC), with higher values indicating greater hardness. However, it is crucial to acknowledge that the hardness of a steel round bar can also be affected by factors such as heat treatment, alloying elements, and any applied surface treatments. Consequently, it is imperative to refer to the manufacturer or supplier's specified hardness specifications to accurately ascertain the hardness of a steel round bar.
Q: How do steel round bars differ from other types of steel bars?
Steel round bars differ from other types of steel bars primarily in their shape. Unlike flat bars or square bars, round bars have a cylindrical shape with a circular cross-section. This shape makes round bars highly versatile and suitable for various applications, such as construction, manufacturing, and engineering. Round bars also offer superior strength and durability due to their uniform composition and absence of sharp edges, making them ideal for load-bearing purposes.
Q: Can steel round bars be used in the aerospace manufacturing industry?
Yes, steel round bars can be used in the aerospace manufacturing industry. Steel is a commonly used material in aerospace applications due to its strength, durability, and resistance to high temperatures. Steel round bars are often used in the construction of aircraft frames, landing gears, and engine components.
Q: What are the advantages of using chromium-molybdenum alloy steel round bars?
There are several advantages of using chromium-molybdenum alloy steel round bars: 1. High Strength: Chromium-molybdenum alloy steel round bars have excellent strength properties, making them suitable for applications that require a high level of strength and durability. This makes them ideal for use in heavy machinery, construction equipment, and other demanding applications. 2. Corrosion Resistance: The addition of chromium in the alloy steel composition enhances its corrosion resistance properties. This makes chromium-molybdenum alloy steel round bars highly resistant to rust and other forms of corrosion, making them suitable for use in harsh environments and outdoor applications. 3. Heat Resistance: Chromium-molybdenum alloy steel round bars have excellent heat resistance properties, allowing them to withstand high temperatures without losing their structural integrity. This makes them suitable for use in applications that involve high temperature conditions, such as in boilers, pressure vessels, and heat exchangers. 4. Wear Resistance: The presence of molybdenum in the alloy steel composition provides excellent wear resistance properties. This means that chromium-molybdenum alloy steel round bars can withstand the effects of wear and abrasion, making them suitable for use in applications that involve high levels of friction and wear, such as in mining equipment, drilling tools, and automotive components. 5. Machinability: Chromium-molybdenum alloy steel round bars have good machinability, allowing them to be easily shaped and formed into various configurations. This makes them suitable for use in applications that require complex shapes and designs, such as in automotive parts, machine components, and tooling. Overall, the advantages of using chromium-molybdenum alloy steel round bars make them a popular choice for a wide range of applications in various industries. They offer high strength, corrosion resistance, heat resistance, wear resistance, and good machinability, making them a reliable and versatile material for many demanding applications.
Q: What is the maximum silicon content allowed for steel round bars?
The maximum silicon content allowed for steel round bars can vary depending on the specific grade and application of the steel. However, in general, the maximum silicon content for most standard carbon and alloy steels used in round bars is typically around 0.35% to 0.45%. Exceeding this limit can lead to detrimental effects on the steel's mechanical properties, such as reduced toughness and increased brittleness. It is important to consult the relevant industry standards and specifications to determine the specific maximum silicon content allowed for a particular steel grade and intended use.
Q: Are steel round bars available in different diameters?
Indeed, one can find steel round bars in diverse diameters. The diameter options for steel round bars span a broad spectrum, commencing from diminutive sizes like 1/8 inch (3.175 mm) and extending to larger dimensions like 12 inches (304.8 mm) or even beyond. This assortment of diameters accommodates the needs of various sectors and enterprises, granting the freedom to select the ideal size to match specific undertakings or criteria.
Q: What are the different types of steel round bar surface finishes for improved lubricity?
Some common types of steel round bar surface finishes for improved lubricity include chrome-plating, nickel-plating, and black oxide coating. These finishes help to reduce friction and enhance the performance of the steel round bar in various applications.
Q: Can steel round bars be used for making storage tanks?
Yes, steel round bars can be used for making storage tanks. Steel is a strong and durable material that is commonly used in the construction of storage tanks due to its high tensile strength and resistance to corrosion. Steel round bars can be shaped and welded together to form the structure of the tank, providing stability and support. Additionally, steel tanks can be customized to meet specific storage requirements, making them a versatile choice for various industries.
Q: What are the different types of heat treatments applied to steel round bars?
Steel round bars can undergo various heat treatments to enhance their mechanical properties and improve their performance in different applications. Some commonly used heat treatments include: 1. Annealing: Steel round bars are heated to a specific temperature and then slowly cooled. This process relieves internal stresses, improves ductility, and increases toughness. 2. Normalizing: Steel round bars are heated above the critical transformation point and then cooled in still air. Normalizing improves the structure and mechanical properties of the steel, making it more uniform and reducing residual stresses. 3. Quenching: Steel round bars are rapidly cooled by immersing them in a quenching medium like oil or water. This heat treatment transforms the austenite phase into martensite, increasing the hardness and strength of the steel. 4. Tempering: After quenching, the hardened steel round bars are reheated to a specific temperature and slowly cooled. Tempering reduces brittleness and improves toughness and ductility while maintaining an appropriate level of hardness. 5. Stress Relieving: This heat treatment is used to reduce residual stresses in the steel round bars that may have been introduced during previous manufacturing processes. The bars are heated to a temperature below the transformation point and slowly cooled. Stress relieving improves dimensional stability and reduces the risk of distortion or cracking. 6. Case Hardening: Carbon or nitrogen is introduced into the outer layer of the steel round bars, creating a hard and wear-resistant surface while maintaining a tough and ductile core. These examples illustrate the different heat treatments that can be applied to steel round bars. The choice of heat treatment depends on the desired mechanical properties and specific application requirements.
Q: How do you calculate the cross-sectional area of a steel round bar?
To calculate the cross-sectional area of a steel round bar, you need to know its diameter or radius. The formula for calculating the cross-sectional area of a circle is A = πr^2, where A is the area and r is the radius of the circle. If you have the diameter of the round bar, you can divide it by 2 to get the radius. Once you have the radius, you can substitute it into the formula to calculate the cross-sectional area. Keep in mind that the value of π is approximately 3.14159.

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