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

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

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

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Product Description:

OKorder is offering high quality Round Bar High Quality Hot Rolled Q195 Q235 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.

ProdudAvantagesct :

OKorder's Round Bar High Quality Hot Rolled Q195 Q235 5-28MMare 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.

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

Q:What are the standard sizes for steel round bars?: Steel round bars come in various standard sizes, which differ depending on the industry and application at hand. Examples of frequently used standard sizes are 1/4 inch, 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, 7/8 inch, 1 inch, 1 1/4 inch, 1 1/2 inch, 1 3/4 inch, 2 inch, 2 1/2 inch, 3 inch, 3 1/2 inch, 4 inch, 4 1/2 inch, 5 inch, 5 1/2 inch, 6 inch, 7 inch, 8 inch, 9 inch, 10 inch, 11 inch, 12 inch, and so forth. These sizes are commonly employed in the construction, manufacturing, and engineering sectors, with slight variations depending on the country or region. It is important to acknowledge that steel round bars can also be customized to specific sizes and lengths in order to meet the particular requirements of a given project.

Q:Can steel round bars be used in the production of springs?: Certainly! Springs can be produced using steel round bars. Steel is a commonly chosen material for manufacturing springs because it possesses strong attributes and excellent durability. Steel round bars are frequently employed as the foundation material for springs because they can be easily manipulated and formed into the desired spring shape. Moreover, by subjecting steel round bars to heat treatment, their mechanical properties can be improved, rendering them appropriate for a range of spring applications. The selection of steel type relies on the desired characteristics and requirements of the spring, such as the desired level of flexibility and resistance to deformation. In summary, steel round bars are extensively employed in spring production due to their outstanding mechanical properties, making them a suitable option for a variety of spring applications.

Q:What are the different surface treatments available for stainless steel round bars?: To enhance the appearance, improve corrosion resistance, and provide added protection for stainless steel round bars, there are various surface treatments available. Some commonly used surface treatments for stainless steel round bars are as follows: 1. Acid immersion: This process involves immersing the stainless steel bar in an acid solution to eliminate surface impurities and oxides. Acid immersion restores the natural corrosion resistance of stainless steel and results in a smooth and clean surface. 2. Chemical passivation: Passivation is a chemical treatment that forms a thin, protective layer on the surface of stainless steel. By eliminating free iron and other contaminants, passivation enhances the corrosion resistance of stainless steel. 3. Electrolytic polishing: This treatment involves immersing the stainless steel round bar in an electrolyte solution and applying an electric current. By removing a thin layer of material from the surface, electrolytic polishing creates a smooth, shiny, and corrosion-resistant finish. 4. Mechanical grinding and polishing: Grinding and polishing are mechanical processes used to improve the surface finish of stainless steel round bars. Grinding eliminates imperfections and roughness, while polishing creates a smooth and reflective surface. 5. Protective coating: Applying a protective layer to stainless steel round bars can provide additional corrosion resistance. Common coatings include electroplating with zinc or nickel, as well as organic coatings such as paints or powder coatings. 6. High-velocity shot blasting: This treatment involves bombarding the surface of the stainless steel round bar with small metallic or non-metallic particles at high speed. Shot blasting eliminates surface contaminants, scales, or oxides, resulting in a clean and textured surface. It is important to consider the desired end-use application and specific requirements for appearance and corrosion resistance when choosing a surface treatment for stainless steel round bars. Seeking advice from professionals or manufacturers can help determine the most suitable treatment.

Q:What is the cost of steel round bars?: The price of steel round bars may differ based on various factors, including the steel grade, bar size, and purchase quantity. Typically, market conditions play a significant role in determining the price, leading to fluctuations over time. To obtain the most accurate and current pricing information, it is advisable to reach out to local steel suppliers or explore online platforms specializing in steel products. Moreover, it is essential to consider additional factors like transportation and handling expenses, as they can impact the ultimate cost.

Q:How do you identify the grade of a steel round bar?: The grade of a steel round bar can be identified through several methods. One way is to check the markings or labels on the bar itself. Manufacturers often stamp or engrave the grade directly onto the surface of the bar. These markings typically include information such as the grade designation (e.g., 304, 316, 4140), which represents the specific alloy composition, and may also include additional details such as the heat or lot number. Another method is to refer to the mill test certificate (MTC) that accompanies the steel round bar. The MTC provides comprehensive information about the composition, mechanical properties, and other relevant specifications of the material. The MTC is usually issued by the steel mill or supplier and can be requested upon purchase. Moreover, visual inspection and physical testing can help identify the grade of a steel round bar. Visual inspection involves observing the bar's appearance, texture, and color. Different grades of steel may exhibit distinct characteristics, such as a shiny or matte finish, specific surface treatments, or variations in color due to different alloying elements. Physical testing methods, such as tensile or hardness testing, can provide further confirmation of the steel grade. These tests measure the mechanical properties of the material, such as its strength, ductility, and hardness. By comparing the test results with known standards and specifications for different steel grades, one can determine the grade of the round bar. In summary, to identify the grade of a steel round bar, one can check for markings on the bar, refer to the mill test certificate, visually inspect the bar, and perform physical tests to assess its mechanical properties.

Q:Can steel round bars be used for making bearings?: Steel round bars can indeed be used for making bearings. However, it is important to note that the specific type of steel used, as well as the manufacturing process, play a crucial role in determining the suitability of steel round bars for bearing applications. Bearings are typically subjected to high loads and require good wear resistance, low friction, and high durability. Steel round bars made from high-quality alloy steels, such as chrome steel or stainless steel, are commonly used for bearing manufacturing due to their excellent mechanical properties. These steel round bars undergo specific heat treatment processes, such as quenching and tempering, to enhance their hardness, strength, and wear resistance. Additionally, the round bars are typically machined to precise tolerances to ensure proper fit and alignment within the bearing assembly. It is important to consult with materials and manufacturing experts or refer to industry standards to ensure the appropriate steel round bar material and manufacturing processes are used for bearing applications. This will ensure the best performance, reliability, and longevity of the bearings in various operating conditions.

Q:How do steel round bars compare to other materials like aluminum or stainless steel?: Steel round bars possess numerous advantages over alternative materials such as aluminum or stainless steel. Firstly, their exceptional strength and durability are widely acknowledged. With a high tensile strength, they are capable of enduring heavy loads and extreme conditions, making them ideal for construction, manufacturing, and engineering applications where strength and resilience are vital. When compared to aluminum, steel round bars exhibit superior strength and hardness. Although aluminum is lightweight, it lacks the same level of strength as steel, which can restrict its use in certain applications. Furthermore, steel round bars offer increased resistance to impact and abrasion, making them more suitable for heavy-duty applications that necessitate resistance to wear and tear. Regarding stainless steel, it is essential to note that it is an alloy that primarily contains steel. Stainless steel is renowned for its corrosion resistance, making it an excellent choice for applications exposed to moisture or harsh environments. However, stainless steel does not possess the same strength as steel round bars. Steel round bars excel in carrying heavier loads and providing superior structural integrity. Another crucial aspect to consider is the cost-effectiveness of steel round bars compared to aluminum or stainless steel. Generally, steel is more affordable than stainless steel and aluminum, making it a popular choice across a broad range of applications. Additionally, steel round bars are readily available in various sizes and grades, offering versatility and ease of use. In conclusion, steel round bars outperform alternative materials like aluminum or stainless steel in terms of strength, durability, and cost-effectiveness. However, the ultimate choice of material depends on the specific requirements of the application and the desired properties necessary for the project.

Q:How do you determine the straightness of a steel round bar?: To determine the straightness of a steel round bar, there are several methods that can be used. One common method is visual inspection, where the bar is carefully examined for any visible bends, twists, or deviations from a straight line. This can be done by placing the bar on a flat surface and checking for any gaps or unevenness between the surface and the bar. Another method is to use a straightedge or a precision ruler. By placing the straightedge or ruler along the length of the bar, any deviations from a straight line can be easily detected. This method allows for more precise measurements and can help identify even slight bends or curves. Measuring devices such as dial indicators or laser alignment tools can also be used to determine the straightness of a steel round bar. These devices provide more accurate measurements and can quantify the degree of straightness by providing numerical readings of any deviations from a straight line. It is important to note that the acceptable level of straightness may vary depending on the specific application or industry standards. In such cases, specific tolerances or guidelines may need to be followed to ensure that the steel round bar meets the required straightness criteria. Overall, determining the straightness of a steel round bar requires careful visual inspection and the use of appropriate measuring tools to ensure that it meets the necessary straightness standards for its intended use.

Q:What are the different types of steel round bars used in the automotive braking systems?: There are primarily two types of steel round bars used in automotive braking systems: solid steel round bars and hollow steel round bars. Solid steel round bars are commonly used for brake rotors and brake drums, providing strength and durability to handle the heat and friction generated during braking. Hollow steel round bars, on the other hand, are often utilized for brake caliper pistons, as they offer a lighter weight option without compromising on strength and performance.

Q:What are the different types of steel round bar alloys for improved wear resistance?: There are several different types of steel round bar alloys that are specifically designed to improve wear resistance. These alloys are formulated to have enhanced hardness and toughness, making them suitable for applications where the material is subjected to constant friction or abrasive forces. One common alloy is tool steel, which includes variations such as H13, D2, and A2. Tool steel is known for its high hardness, excellent wear resistance, and good toughness. It is often used in applications such as molding and forming tools, cutting tools, and dies. Another alloy for improved wear resistance is stainless steel. Stainless steel round bars are corrosion-resistant and have good strength properties. They are commonly used in applications like food processing equipment, medical devices, and marine components. Abrasion-resistant steel, also known as AR steel, is another type of alloy used for improved wear resistance. AR steel is specially formulated to withstand impact and abrasion, making it ideal for applications such as mining equipment, construction machinery, and material handling systems. Manganese steel is another alloy that provides excellent wear resistance. It is commonly used in applications involving high impact and abrasive wear, such as crusher jaws, railroad crossings, and excavator buckets. Lastly, there are specialty alloys such as chrome-moly steel (chromium-molybdenum) and nickel-chromium alloys, which offer superior wear resistance in specific conditions. These alloys are often used in high-temperature applications, such as aerospace components, power generation equipment, and automotive parts. In summary, the different types of steel round bar alloys for improved wear resistance include tool steel, stainless steel, abrasion-resistant steel, manganese steel, and specialty alloys. Each alloy has its own unique properties and is suited for specific applications where wear resistance is a critical requirement.

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