High Quality Round Bar Q195 Q235 Hot Rolled 5-28mm

High Quality Round Bar Q195 Q235 Hot Rolled 5-28mm System 1

High Quality Round Bar Q195 Q235 Hot Rolled 5-28mm

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Product Description:

OKorder is offering High Quality Round Bar Q195 Q235 Hot Rolled 5-28mmat 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) Suitable for making various strong cutting tool abrasion resistance, impact resistance.

2) Used to produce all kinds of high hard and super hard saw blade, drill, tap, broach, gear hob and various kinds of milling cutter.

3) Used for advanced punching die, screw die, and the toughness and complicated shape of the punch, etc.

4) Is used for cold forging die and drawing mode, etc.

5) Recommended watchcase factory, screw factory and other cold stamping products industry use.

Product Advantages:

OKorder's High Quality Round Bar Q195 Q235 Hot Rolled 5-28mm 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: GB, JIS, ASTM, EN

2. Grade: Q235, SS400, A36, S235JR

3. Diameter and mass: As below

Diameter	Mass	Diameter	Mass	Diameter	Mass
(mm)	(kg/m)	(mm)	(kg/m)	(mm)	(kg/m)
6	0.22	22	2.98	53	17.30
7	0.30	24	3.55	56	19.30
8	0.40	25	3.85	60	22.20
9	0.50	26	4.17	63	24.50
10	0.62	28	4.83	65	26.00
11	0.75	30	5.55	70	30.20
12	0.89	32	6.31	75	34.70
13	1.04	34	7.13	80	39.50
14	1.21	36	7.99	85	44.50
15	1.39	38	8.90	90	49.90
16	1.58	40	9.86	95	55.60
17	1.78	42	10.90	100	61.70
18	2.00	45	12.50	120	88.85
19	2.23	48	14.20	140	120.93
20	2.47	50	15.40	150	138.82

4. Material: Mild Steel

5. Heat treatment of high quality steel:

Fire: Isothermal annealing temperature is 800 ~ 880 °C, with 10 ~ 20 °C, the furnace cooling to about 600 °C, hardness above HB269.

Preheat temperature: 730-730 °C

Quenching temperature: 1190-1210 °C

Tempering temperature: 540-595 °C

Cold drawn, hardness 285 HBS

Cold drawn after annealing condition, hardness 277 HBS

Quenching methods: oil quenching, air cooling or salt bath quenching

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.

High Quality Round Bar Q195 Q235 Hot Rolled 5-28mm

Q:What is the maximum carbon content allowed for steel round bars?: The carbon content allowed for steel round bars can vary depending on the specific grade or specification of steel used. However, most standard steel round bars typically have a carbon content ranging from approximately 0.25% to 0.30%. This carbon content level helps maintain a balance between strength and ductility, ensuring that the steel is sufficiently strong for load-bearing applications while also being easily formable or machinable. It is crucial to note that certain specialized steels or specific applications may have distinct maximum carbon content requirements. Therefore, it is always necessary to refer to the relevant specifications or standards for precise and accurate information.

Q:What are the advantages of using bearing steel round bars?: Bearing steel round bars offer numerous benefits: 1. They possess remarkable strength and durability, making them ideal for applications that demand a robust and dependable material capable of withstanding heavy loads and high impact forces. 2. Their exceptional wear resistance allows them to endure constant friction and abrasion without experiencing excessive wear and tear. As a result, they are suitable for applications that involve repetitive rotational motion or sliding. 3. Bearing steel round bars are typically heat-treated to attain optimal hardness levels. This hardness enables them to maintain their shape and structural integrity even under extreme conditions like high temperatures or heavy loads. 4. These round bars exhibit excellent dimensional stability, meaning they retain their shape and size even when subjected to varying temperature and environmental conditions. This quality is essential in applications that require precise dimensions for proper functioning and performance. 5. Bearing steel round bars are often alloyed with elements like chromium and molybdenum to enhance their corrosion resistance. Consequently, they are well-suited for use in corrosive environments, such as the marine or chemical industries. 6. They are relatively easy to machine and process, allowing for efficient production and customization. This ease of shaping, cutting, and drilling makes them a cost-effective choice for various applications. In summary, bearing steel round bars offer high strength, excellent wear resistance, superior hardness, dimensional stability, corrosion resistance, and machinability. These qualities make them the preferred choice in industries such as automotive, aerospace, machinery, and construction, where reliability, durability, and performance are of utmost importance.

Q:Are steel round bars suitable for use in the aerospace industry?: Steel round bars are indeed appropriate for utilization in the aerospace sector. These bars possess exceptional robustness and resilience, rendering them an optimal selection for diverse applications in aerospace engineering. With their elevated tensile strength, they can endure the extreme temperatures and pressures commonly encountered during aerospace operations. Additionally, steel round bars exhibit commendable resistance against corrosion, a vital attribute for preserving the structural integrity of aircraft that face varying environmental conditions. Furthermore, their ability to be easily machined and welded makes them highly adaptable for producing components and structures within the aerospace industry. Ultimately, steel round bars represent a dependable and economically viable material option for aerospace applications.

Q:How are steel round bars used in the mining industry?: The mining industry extensively utilizes steel round bars for various purposes. Underground support systems heavily rely on these bars, commonly employed as roof bolts or rock bolts, to prevent cave-ins or roof falls. In the manufacturing of drilling equipment, steel round bars are frequently transformed into drill rods or drill bits. This conversion allows them to endure the challenging conditions associated with mining operations. The bars are typically subjected to heat treatment to enhance hardness and resistance to wear, ensuring their durability during drilling processes. Within the mining field, steel round bars have another significant application in the production of grinding media for grinding mills. Termed grinding rods, these bars consist of high-quality steel and possess specific hardness and toughness. Their function is to effectively reduce ore particles into smaller sizes, facilitating the extraction of valuable minerals. Furthermore, steel round bars contribute to the construction of conveyor systems in mining operations. They are commonly employed as support bars or rollers in conveyor belts, ensuring the efficient transportation of mined materials from one location to another. To summarize, steel round bars hold a crucial position in the mining industry. Their diverse applications, ranging from providing support in underground mines to manufacturing drilling equipment and grinding media, contribute to the overall efficiency and productivity of mining operations.

Q:Can steel round bars be used in the defense industry?: Indeed, in the defense industry, steel round bars find utility. Steel, being a remarkably resilient and sturdy substance, proves fitting for diverse applications within the defense sector. The production of vital defense equipment, such as gun barrels, armor plates, missile casings, and other essential components, can be achieved using steel round bars. The durability of steel guarantees that these components endure high-pressure circumstances and furnish the essential safeguard and assistance demanded in defense applications. Moreover, steel round bars can be customized through machining, welding, or heat treatment to fulfill the distinct necessities of various defense systems, rendering them a material choice ideally suited for the industry.

Q:Can steel round bars be used for making valves or fittings?: Yes, steel round bars can be used for making valves or fittings. Steel is a common material choice for valves and fittings due to its strength, durability, and resistance to corrosion. Steel round bars can be machined or forged into the desired shape for valves or fittings, ensuring that they meet the necessary specifications and requirements. Additionally, steel round bars can be heat-treated to enhance their mechanical properties and make them suitable for high-pressure or high-temperature applications. Overall, steel round bars are a versatile and reliable material option for manufacturing valves or fittings.

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 and versatility. Unlike other steel bars such as square or flat bars, steel round bars are cylindrical in shape and have a circular cross-section. This unique shape allows for greater flexibility and adaptability in their usage. One of the main advantages of steel round bars is their ability to withstand high levels of stress and pressure. Due to their circular shape, they distribute weight and pressure evenly, making them ideal for applications that require durability and strength. These bars are often used in construction, manufacturing, and engineering projects where structural integrity is crucial. Another key difference is the ease with which steel round bars can be machined and manipulated. Their cylindrical shape allows for easy drilling, cutting, and shaping, making them highly versatile and suitable for a wide range of applications. They can be easily welded, bent, or formed into various shapes, giving them an advantage over other types of steel bars in terms of customization. In terms of appearance, steel round bars also have a distinct visual appeal. The smooth and cylindrical surface of these bars offers a sleek and polished look, making them aesthetically pleasing in architectural and decorative applications. Overall, steel round bars stand out from other types of steel bars due to their shape, versatility, and strength. Their ability to withstand high levels of stress, ease of machining, and appealing appearance make them a popular choice in various industries.

Q:What are the different types of steel round bars used in the automotive aftermarket?: There are several different types of steel round bars commonly used in the automotive aftermarket. These include: 1. Carbon Steel Round Bars: Carbon steel is a commonly used material in the automotive industry due to its high strength and durability. It is often used in applications that require heavy-duty performance, such as suspension components, drive shafts, and steering linkages. 2. Alloy Steel Round Bars: Alloy steel is a type of steel that has been alloyed with other elements to enhance its mechanical properties. It is commonly used in the automotive aftermarket for applications that require high strength, such as crankshafts, camshafts, and axles. 3. Stainless Steel Round Bars: Stainless steel is known for its corrosion resistance and aesthetic appeal. It is often used in automotive aftermarket applications that require resistance to harsh environments, such as exhaust systems, trim components, and decorative elements. 4. Tool Steel Round Bars: Tool steel is a type of high-carbon steel that is specifically designed for tooling and machining applications. It is commonly used in the automotive aftermarket for manufacturing specialized tools, dies, and molds. 5. Bearing Steel Round Bars: Bearing steel is a type of high-carbon steel that is specifically designed for bearing applications. It is commonly used in the automotive aftermarket for manufacturing bearings and other rotating components. These are just a few examples of the different types of steel round bars used in the automotive aftermarket. The specific type of steel chosen for a particular application will depend on factors such as the required strength, durability, and corrosion resistance.

Q:What are the common finishes for steel round bars?: Steel round bars can be finished in several ways, each offering unique properties and aesthetic appeal. Some of the most common finishes are as follows: 1. Achieving a rough and scaled surface, hot rolling involves rolling the steel at a high temperature. This finish is commonly preferred for applications where a rough texture is desired, such as structural components or machinery. 2. Cold rolling, on the other hand, results in a smoother and more polished surface. It is achieved by rolling the steel at room temperature and is often used in industries like automotive or aerospace, where a clean and precise appearance is required. 3. For a smooth and polished surface, the steel round bar can be turned and polished. This finish involves machining the bar and is commonly used for decorative purposes or in applications where precision is crucial, such as shafts or fasteners. 4. By grinding the steel round bar, any surface imperfections or irregularities can be removed, resulting in a smooth and uniform finish. This finish, known as grinding, is suitable for applications where tight tolerances or a consistent finish are essential. 5. Alternatively, steel round bars can be coated or plated with different materials to enhance their corrosion resistance or aesthetic appeal. Popular options include galvanizing, which involves applying a layer of zinc to protect against rust, or chrome plating, which provides a shiny and attractive finish. Ultimately, the choice of finish for a steel round bar depends on the specific requirements of the application, such as the desired appearance, corrosion resistance, or mechanical properties needed.

Q:What is the difference between seamless and welded steel round bars?: The main difference between seamless and welded steel round bars lies in their production process. Seamless steel round bars are made by piercing a solid steel billet to create a hollow tube, which is then elongated and rolled to the desired size and shape. On the other hand, welded steel round bars are formed by welding together two or more pieces of steel, typically using a fusion process. This results in a visible seam along the length of the bar. While seamless bars offer a smoother and more uniform surface, welded bars are generally more cost-effective and readily available in a wider range of sizes and lengths.

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