Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM

Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM

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Product Description:

OKorder is offering Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM 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) 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 Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM 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 you package the angle steel when shipping?

A2: All goods are packed in bundles with steel strips and shipped by container or break bulk.

Q3: The products are invoicing on theoritical weight or on actual weight?

A3: We can do it in both manners, according to the customers' request.

Round Bar Hot Rolled High Quality Q195 Q235 8MM-22MM

Q:What are the factors to consider when selecting a steel round bar for a specific application?: When selecting a steel round bar for a specific application, there are several important factors to consider. 1. Material Grade: The first factor to consider is the material grade of the steel round bar. Different grades of steel have varying properties, such as strength, hardness, and corrosion resistance. It is crucial to choose a material grade that is suitable for the specific application's requirements. 2. Mechanical Properties: The mechanical properties of the steel round bar, such as tensile strength, yield strength, and elongation, need to be evaluated. These properties determine the bar's ability to withstand forces and deformations under load. The selected steel round bar should have mechanical properties that match the demands of the application. 3. Size and Dimensions: The size and dimensions of the steel round bar are crucial considerations. This includes the diameter, length, and tolerance requirements. The dimensions should be chosen based on the application's structural requirements and the intended load-bearing capacity of the bar. 4. Surface Finish: The surface finish of the steel round bar is significant, especially for applications involving aesthetics or contact with other components. Considerations such as smoothness, roughness, and the presence of any coatings or treatments should be taken into account. 5. Corrosion Resistance: Depending on the application's environment, it is essential to select a steel round bar with adequate corrosion resistance. Factors such as exposure to moisture, chemicals, or extreme temperatures can affect the bar's longevity and performance. Stainless steel or corrosion-resistant coatings can be chosen to enhance the bar's resistance to corrosion. 6. Machinability: If the steel round bar needs to be machined or fabricated into a specific shape, its machinability must be considered. Some steel grades are easier to machine, while others may require more advanced tools or techniques. The machinability of the selected bar should align with the desired manufacturing processes. 7. Cost: Finally, the cost of the steel round bar should be considered. Different material grades and specifications come with varying price points. It is important to balance the required properties and performance with the project's budget constraints. Overall, selecting a steel round bar for a specific application requires careful evaluation of the material grade, mechanical properties, size, surface finish, corrosion resistance, machinability, and cost. By considering these factors, one can ensure that the chosen steel round bar will meet the application's requirements and deliver optimal performance.

Q:Can steel round bars be used for making wheel hubs?: Indeed, wheel hubs can be crafted using steel round bars. The preference for steel round bars in the fabrication of wheel hubs is attributed to their robustness and longevity. The cylindrical form of these bars facilitates effortless machining and shaping to meet the desired wheel hub design. Steel is renowned for its remarkable tensile strength and ability to withstand deterioration, making it an optimal substance for wheel hubs that must endure substantial loads and incessant wheel rotation. Moreover, steel is easily accessible and comparatively economical in contrast to alternative materials, rendering it a favored selection in the automotive sector for wheel hub manufacturing.

Q:Are steel round bars suitable for high-temperature applications?: Steel round bars can be suitable for high-temperature applications depending on the specific grade and composition of the steel. Certain grades of steel, such as stainless steel or heat-resistant alloys, are specifically designed to withstand high temperatures without losing their mechanical properties. These steel grades have high melting points, excellent heat resistance, and good oxidation resistance, making them ideal for applications in industries such as aerospace, automotive, and power generation. Stainless steel round bars, for example, exhibit excellent corrosion resistance and high strength at elevated temperatures. They can withstand temperatures up to 800-900 degrees Celsius without significant loss of mechanical properties. Additionally, heat-resistant alloys like Inconel or Hastelloy are used in extreme high-temperature environments, such as gas turbines or petrochemical plants, where temperatures can exceed 1000 degrees Celsius. However, not all steel round bars are suitable for high-temperature applications. Carbon steels, for instance, are prone to oxidation and loss of strength at elevated temperatures. Low-grade steel round bars may also experience deformation, softening, or even failure under high-temperature conditions. Therefore, it is crucial to select the appropriate steel grade and consult with experts or engineers to determine the suitability of steel round bars for specific high-temperature applications.

Q:What are the different types of corrosion-resistant steel round bars?: There are several different types of corrosion-resistant steel round bars available in the market. Some of the commonly used types include: 1. Stainless Steel Round Bars: Stainless steel is a popular choice for corrosion-resistant applications due to its high resistance to rust and corrosion. It contains chromium, which forms a protective oxide layer on the surface of the steel, preventing further corrosion. 2. Duplex Stainless Steel Round Bars: Duplex stainless steel is a type of stainless steel that contains a balanced combination of austenite and ferrite microstructures. This gives it excellent corrosion resistance, high strength, and good weldability. 3. Nitronic Stainless Steel Round Bars: Nitronic stainless steel is a high-performance alloy that offers superior corrosion resistance, high strength, and good ductility. It contains nitrogen, which enhances its resistance to pitting and crevice corrosion. 4. Alloy Steel Round Bars: Alloy steel is a type of steel that is alloyed with various elements to improve its properties. Some alloy steels, such as corrosion-resistant alloys (CRA), are specifically designed to resist corrosion in harsh environments. These alloys typically contain elements such as chromium, nickel, and molybdenum. 5. Aluminum Round Bars: While not technically steel, aluminum round bars are often used in applications where corrosion resistance is essential. Aluminum forms a protective oxide layer on its surface, which helps prevent corrosion. It is particularly suitable for applications where weight is a concern. 6. Copper-Nickel Round Bars: Copper-nickel alloys, such as Cu-Ni 90/10 and Cu-Ni 70/30, are widely used in marine and offshore applications due to their excellent resistance to seawater corrosion. These alloys have high strength, good ductility, and exceptional resistance to biofouling. These are just a few examples of the different types of corrosion-resistant steel round bars available. The choice of material depends on the specific application requirements, environmental conditions, and budget considerations. It is important to consult with a materials engineer or specialist to select the most suitable corrosion-resistant steel round bar for a particular application.

Q:How are steel round bars used in the manufacturing of fasteners and bolts?: Steel round bars are used in the manufacturing of fasteners and bolts as they provide the necessary strength and durability required for these components. The bars are typically cut and shaped into the desired length and shape, and then undergo various processes such as threading or heat treatment to enhance their performance. The resulting steel rods are used as the main body of fasteners and bolts, providing the necessary structural integrity and reliability in various industrial applications.

Q:How do steel round bars compare to concrete round bars?: Steel round bars and concrete round bars have several key differences. Firstly, steel round bars are made of a strong and durable material, whereas concrete round bars are made of a composite material consisting of cement, aggregates, and water. This difference in materials gives steel round bars a higher tensile strength and resistance to bending and deformation compared to concrete round bars, which are more prone to cracking and breaking under stress. Secondly, steel round bars offer greater flexibility in terms of design and customization. They can be easily shaped, bent, and cut to specific lengths and dimensions, making them highly versatile for various applications. On the other hand, concrete round bars are usually available in standard sizes and shapes, limiting their design possibilities. Another important aspect to consider is the weight. Steel round bars are generally lighter in weight compared to concrete round bars, making them easier to handle and transport. This weight advantage also translates into reduced structural loads, allowing for more efficient and cost-effective construction. In terms of corrosion resistance, steel round bars require additional protective measures such as coatings or galvanization to prevent rust and corrosion, especially in humid or marine environments. Concrete round bars, on the other hand, are naturally resistant to corrosion. This can be a significant factor when considering the long-term durability and maintenance requirements of a structure. Lastly, cost is an important factor to consider. While steel round bars may have a higher initial material cost compared to concrete round bars, their superior strength and durability can lead to long-term cost savings. Concrete round bars may require more frequent maintenance and repairs, which can add up over time. In conclusion, steel round bars offer superior strength, flexibility, and durability compared to concrete round bars. However, the choice between the two depends on the specific requirements of the project, including factors such as design flexibility, weight considerations, corrosion resistance, and cost.

Q:What are the different alloying elements used in steel round bars?: The different alloying elements commonly used in steel round bars include carbon, manganese, silicon, sulfur, phosphorus, chromium, nickel, molybdenum, vanadium, and sometimes tungsten. These elements are added in varying quantities to enhance specific properties of the steel, such as strength, corrosion resistance, and heat resistance.

Q:What are the tolerance standards for steel round bars?: The tolerance standards for steel round bars vary depending on the specific requirements and industry standards. Generally, the tolerance for diameter or size of steel round bars is specified in terms of a plus or minus tolerance. This means that the actual diameter of the bar can deviate slightly from the specified size, but it should fall within the specified tolerance range. In some industries, such as construction or manufacturing, the tolerance for steel round bars may be relatively broad to allow for easier fabrication and installation. For example, a common tolerance range for the diameter of steel round bars used in construction could be ±0.005 to ±0.010 inches. In more precise applications, such as aerospace or automotive industries, the tolerance requirements for steel round bars are typically much tighter. In these cases, the tolerance range can be significantly smaller, often in the range of ±0.001 to ±0.002 inches. It is important to note that different countries and organizations may have their own specific tolerance standards for steel round bars. These standards are usually outlined in industry-specific documents or specifications, such as ASTM (American Society for Testing and Materials) or ISO (International Organization for Standardization) standards. In summary, the tolerance standards for steel round bars depend on the specific requirements of the industry and application. The tolerance range for diameter can vary from relatively broad to extremely tight, and these standards are typically defined by industry-specific organizations or standards bodies.

Q:Can steel round bars be used in the production of electrical equipment?: Steel round bars are capable of being utilized in the production of electrical equipment. Steel possesses a multitude of properties that render it suitable for various applications, including electrical equipment. Components such as shafts, connectors, and structural supports within electrical equipment can be manufactured using steel round bars. The reliability of steel is derived from its strength and durability, enabling it to withstand the mechanical stresses and environmental conditions that electrical equipment may encounter. Moreover, steel offers favorable electrical conductivity and magnetic properties, crucial characteristics for specific electrical components. Nevertheless, it is important to acknowledge that steel round bars may necessitate additional processes like machining, heat treatment, or surface finishing in order to meet specific requirements for the production of electrical equipment.

Q:What are the different grades of heat-treated steel round bars?: There exists a variety of heat-treated steel round bars with distinct properties and characteristics. Among the commonly used grades are: 1. 4140: Renowned for its high strength and toughness, this grade of heat-treated steel round bar possesses exceptional wear resistance and good machinability. It can undergo easy heat treatment to enhance its hardness and strength. 2. 4340: Heat-treated steel round bars belonging to this grade are recognized for their high tensile strength, toughness, and resistance to fatigue. They find extensive use in industries like aerospace and automotive, which demand superior strength and durability. 3. 8620: Characterized by its case hardening properties, this grade of heat-treated steel round bar exhibits good core strength, excellent toughness, and is frequently employed in applications requiring high wear resistance, such as gears, shafts, and pins. 4. 52100: Widely utilized in bearing applications, heat-treated steel round bars of this grade offer exceptional hardness, wear resistance, and high fatigue strength. They are specially designed to withstand heavy loads and provide long-lasting performance. 5. 1045: Recognized for its medium carbon content, this grade of heat-treated steel round bar provides good strength and impact resistance. It is commonly employed in applications that necessitate moderate strength and toughness, such as shafts, axles, and machinery parts. These examples represent only a fraction of the diverse grades of heat-treated steel round bars available in the market. The choice of grade depends on specific requirements like strength, hardness, toughness, and wear resistance. Seeking guidance from a knowledgeable professional is essential to determine the most suitable grade for one's particular needs.

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