Hot Rolled Carbon Steel Round Bar

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Product Description:

OKorder is offering Round Bar 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:

 

1. Hot rolled round bar of 6-25mm, or small round is mostly used for straight bundles supply, and used for steel, bolts and various mechanical parts. While the bigger round bar, or more than 25mm hot rolled bar, is mainly for the manufacture of mechanical parts or for seamless steel billet.

2. Besides, we can supply some especial material steel round bar that can be used for main shaft of steamer, hummer shank, with big section and supper force.

 

 

Product Advantages:

OKorder's Round Bar 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

 

Product Specifications:

 

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

 

Production Flow of 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

 

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.

Q4: What makes stainless steel stainless?

A4: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.

 

Images:

 

Q:
Steel round bars are known for their exceptional strength and durability, making them highly suitable for high-pressure applications. When subjected to high-pressure conditions, steel round bars exhibit excellent resistance to deformation and maintain their structural integrity. This enables them to withstand the intense forces and maintain their shape, ensuring the safety and reliability of the application. Steel round bars are often used in high-pressure applications such as hydraulic systems, oil and gas pipelines, aerospace components, and high-pressure vessels. Their robust nature allows them to handle the extreme pressures experienced in these applications without failure. The high tensile strength of steel ensures that the bars do not buckle or collapse under pressure, providing the necessary support and stability required for such demanding environments. Additionally, steel round bars possess excellent corrosion resistance properties, which is crucial in high-pressure applications. They can withstand exposure to harsh chemicals, moisture, and other corrosive elements, preventing rusting or degradation over time. This corrosion resistance ensures the longevity and reliability of the steel round bars in high-pressure environments, reducing the risk of premature failure. Furthermore, steel round bars offer versatility in terms of grades and alloys, allowing for customization to meet specific high-pressure requirements. Different grades of steel, such as carbon steel, alloy steel, or stainless steel, can be utilized based on the application's demands. This versatility ensures that the steel round bars can be tailored to provide optimal performance and meet the specific pressure and temperature requirements of the application. In conclusion, steel round bars excel in high-pressure applications due to their exceptional strength, durability, and corrosion resistance properties. Their ability to withstand intense forces and maintain their shape makes them a reliable choice for various industries, including hydraulic systems, oil and gas pipelines, aerospace, and high-pressure vessels. By utilizing steel round bars, companies can ensure the safety, reliability, and longevity of their high-pressure applications.
Q:
Hot rolled and cold drawn steel round bars differ primarily in their production methods and resulting characteristics. Hot rolled bars are created by heating a billet or ingot to high temperatures and shaping it through rolling, resulting in a rough, scaled surface with rounded edges. This process allows for quick and efficient production of larger sizes and quantities, however, the steel is less precise in terms of dimensions and has a lower surface finish quality compared to cold drawn steel. In contrast, cold drawn steel round bars are produced by pulling a hot rolled bar through a die at room temperature, resulting in a smooth, polished surface with tighter dimensional tolerances. This process enhances the mechanical properties of the steel, such as improved strength, hardness, and dimensional accuracy. Cold drawing also provides a better surface finish and closer dimensional control compared to hot rolling. Hot rolled steel round bars are often used in construction, manufacturing, and general fabrication due to their lower cost and ease of production. They are suitable for applications where precision and surface finish are not critical factors. On the other hand, cold drawn steel round bars are commonly used in demanding applications that require superior dimensional accuracy, surface finish, and mechanical properties. They are frequently utilized in automotive, aerospace, and machinery industries, where precision and quality are essential. In conclusion, the main disparities between hot rolled and cold drawn steel round bars lie in their production process, resulting surface finish, dimensional accuracy, and mechanical properties. The choice between the two depends on the specific requirements and applications of the steel.
Q:
Certainly, gears can utilize steel round bars in their manufacturing process. The utilization of steel round bars is quite common in gear manufacturing given their remarkable attributes such as formidable strength, long-lasting durability, and remarkable resistance to wear and tear. The rounded shape of these bars allows for effortless machining and molding into the desired gear design. Furthermore, steel round bars possess exceptional mechanical properties, including impressive tensile strength and commendable resistance to fatigue, which are crucial for gears that encounter heavy loads and repetitive movements. Additionally, steel round bars can undergo heat treatment to further enhance their hardness and toughness, rendering them ideal for demanding gear applications. All in all, steel round bars are a highly favored option in gear manufacturing due to their adaptability and dependability.
Q:
There are several types of steel round bars used in the manufacturing of shafts, including carbon steel, alloy steel, stainless steel, and tool steel. Each type has its own unique properties and characteristics that make it suitable for specific applications. For instance, carbon steel round bars are commonly used for general-purpose shafts due to their high strength and affordability. Alloy steel round bars, on the other hand, are preferred for applications that require enhanced strength, hardness, and durability. Stainless steel round bars are used when corrosion resistance is a priority, making them ideal for shafts in industries like food processing or marine environments. Finally, tool steel round bars are chosen for their exceptional hardness, wear resistance, and ability to withstand high temperatures, making them suitable for shafts used in cutting tools or machinery. The selection of the appropriate type of steel round bar depends on the specific requirements and conditions of the shaft's application.
Q:
Yes, steel round bars can be used in the hydraulic industry. Steel round bars are known for their strength, durability, and resistance to corrosion, making them suitable for various applications in the hydraulic industry. They can be used to manufacture hydraulic cylinders, pistons, and other components that require high tensile strength and reliability. Additionally, steel round bars can be machined and shaped into various sizes and specifications to meet the specific needs of hydraulic systems. Overall, steel round bars are a popular choice for the hydraulic industry due to their excellent mechanical properties and versatility.
Q:
Steel round bars have several international standards that define their specifications and requirements. Some commonly used standards are as follows: 1. ASTM A36/A36M: This standard focuses on carbon structural steel shapes, plates, and bars of structural quality. It is used in the construction of bridges and buildings through riveting, bolting, or welding. It specifies the chemical composition, mechanical properties, and dimensional tolerances for steel round bars. 2. ASTM A615/A615M: This standard lays down the requirements for deformed and plain carbon-steel bars used for concrete reinforcement. It covers bars with diameters ranging from 6 to 60 mm and provides guidelines for chemical composition, mechanical properties, and bend tests. 3. BS 4449: This British Standard deals with steel bars used to reinforce concrete. It outlines the requirements for carbon steel bars in different grades, such as B500B and B500C. It specifies the tensile properties, chemical composition, and dimensional tolerances for these steel round bars. 4. DIN 17100: This German standard specifies general structural steels, including steel round bars. It provides guidelines for the chemical composition, mechanical properties, and technical delivery conditions for various grades of steel bars. 5. JIS G3101: This Japanese Industrial Standard covers general structure rolled steel used for various applications. It includes steel round bars and defines the chemical composition, mechanical properties, and dimensional tolerances for different grades of steel bars. 6. ISO 6935-2: This International Organization for Standardization standard specifies the requirements for hot-rolled steel bars used for concrete reinforcement. It provides guidelines for the chemical composition, mechanical properties, and dimensional tolerances of steel round bars used in construction. These examples represent only a few of the international standards available for steel round bars. To ensure compliance and quality of the steel round bars used, it is essential to consult the appropriate standard based on the specific application and requirements.
Q:What is the tensile strength of Q235 round steel?
Level 1, surface shape, light circle, strength code R235, grade Q235, carbon content 0.14%-0.22%. Silicon content 0.12%-0.30%. Manganese content 0.30%-0.65%, phosphorus content is equal to less than 0.045%, sulfur content is less than or equal to 0.050%,
Q:20 round bars are of several grades
No. 20 cold drawn steel belongs to high quality low carbon steel, cold extrusion, carburizing hardened steel. The steel has low strength, toughness, plasticity and weldability. The tensile strength is 355-500MPa, elongation is greater than or equal to 24%.
Q:
One of the advantages of using zinc-alloy steel round bars is their high corrosion resistance. The zinc coating acts as a protective barrier, preventing rust and corrosion, which makes these bars suitable for outdoor applications and environments with high humidity. Additionally, zinc-alloy steel round bars have excellent strength and durability, making them ideal for structural and load-bearing purposes. Furthermore, the zinc coating provides enhanced aesthetics, offering a polished and visually appealing finish. Overall, the advantages of using zinc-alloy steel round bars include corrosion resistance, strength, durability, and improved appearance.
Q:
Steel round bars can be categorized into two main groups, namely hot-rolled round bars and cold-drawn round bars, depending on their shape. Hot-rolled round bars are produced by heating a steel billet until it becomes malleable and then passing it through a series of rollers to achieve the desired shape. This manufacturing process results in a rougher surface texture and a slightly larger diameter when compared to cold-drawn round bars. Hot-rolled round bars find common usage in construction, engineering, and manufacturing applications where strength and durability play a crucial role. On the other hand, cold-drawn round bars are manufactured by pulling a hot-rolled round bar through a series of dies at room temperature. This process enhances the dimensional accuracy, surface finish, and mechanical properties of the steel. Cold-drawn round bars possess a smoother surface texture and a more precise diameter, making them suitable for applications that demand tight tolerances, such as precision machining, automotive components, and machinery shafts. In conclusion, the classification of steel round bars, based on their shape, is determined by the specific manufacturing process employed. Hot-rolled round bars exhibit rougher surfaces and slightly larger diameters, while cold-drawn round bars boast smoother surfaces and more precise dimensions. The choice between these two categories depends on the specific requirements of the given application.

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