Round Bar Q235 3MM-25MM High Quality Hot Rolled GB
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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OKorder is offering high quality Hot Rolled Steel I-Beams 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 Steel I-Beams 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.
- Q: What are the advantages of using manganese-alloy steel round bars?
- Manganese-alloy steel round bars offer several advantages. Firstly, they possess excellent strength and durability, making them ideal for applications that require high load-bearing capacity. Secondly, the presence of manganese in the alloy enhances hardenability, resulting in improved wear resistance and toughness. This makes manganese-alloy steel round bars suitable for use in environments with abrasive conditions or high impact forces. Additionally, these round bars exhibit good machinability, allowing for easy fabrication and shaping. Lastly, the corrosion resistance of manganese-alloy steel ensures a longer lifespan, reducing maintenance requirements and costs in various industries.
- Q: What are the common applications of steel round bars?
- Steel round bars are highly valued in various industries because of their strength, versatility, and durability. They find widespread use in different sectors, including construction, manufacturing, automotive, aerospace, energy and power, and the oil and gas industry. In construction, steel round bars are commonly employed for building frames, bridges, and infrastructure, providing structural support and withstanding heavy loads. They are also frequently used to reinforce concrete structures, enhancing their strength and resilience. The manufacturing industry relies on steel round bars for the production of various components and machinery. Gears, shafts, couplings, and axles are commonly fabricated using these bars due to their excellent machinability and ability to withstand high levels of stress and pressure. Within the automotive sector, steel round bars are extensively used to manufacture critical components such as crankshafts, steering systems, suspension parts, and axles. Their high tensile strength and resistance to wear and tear play a crucial role in ensuring the safety and reliability of vehicles. The aerospace industry heavily depends on steel round bars for the production of aircraft components, including landing gear, propeller shafts, and structural elements. Steel's high strength-to-weight ratio and exceptional fatigue resistance make it an ideal choice for withstanding the extreme conditions experienced in aerospace applications. In the energy and power sector, steel round bars are employed in the manufacturing of equipment like turbines, generators, and power transmission systems. Steel's ability to handle high temperatures and its resistance to corrosion make it a suitable material for these applications. The oil and gas industry extensively utilizes steel round bars for the production of drilling equipment, pipelines, and valves. Steel's resistance to corrosion and high-pressure environments makes it an indispensable material in this sector. In conclusion, steel round bars find a multitude of applications across industries due to their strength, versatility, and resistance to wear and tear. They play a crucial role in construction, manufacturing, automotive, aerospace, energy and power, as well as the oil and gas industry.
- Q: How do you measure the hardness of a steel round bar?
- The hardness of a steel round bar can be measured using various methods, with the most common being the Rockwell hardness test. In this test, a diamond or steel ball indenter is pressed into the surface of the steel at a specific load, and the depth of the indentation is measured. The hardness value is determined based on the depth of the indentation and the applied load. Other methods like Brinell and Vickers hardness tests can also be used, depending on the specific requirements and characteristics of the steel.
- Q: What are the different safety considerations when working with steel round bars?
- When working with steel round bars, there are several safety considerations to keep in mind. First and foremost, it is important to wear appropriate personal protective equipment (PPE) such as safety glasses, gloves, and steel-toed boots to protect against potential hazards. Additionally, one should always handle the steel bars with care to avoid injuries from sharp edges or heavy lifting. It is crucial to ensure a secure and stable work area to prevent slips, trips, and falls. Furthermore, when using tools or machinery to cut or shape the steel bars, proper training and caution should be exercised to prevent accidents and follow all recommended safety procedures.
- Q: Can steel round bars be used for making power transmission systems?
- Certainly! Power transmission systems can indeed be made using steel round bars. Various industries commonly use steel round bars because of their remarkable strength and durability. Their capacity to endure high torque and load capacities makes them suitable for power transmission systems. Steel round bars can be machined and shaped into different sizes and forms, offering versatility for diverse power transmission applications. Moreover, steel exhibits exceptional wear resistance and can withstand severe operating conditions, rendering it an ideal material for power transmission systems that necessitate enduring performance.
- Q: What are the different types of steel round bars used in the marine industry?
- In the marine industry, various types of steel round bars are used for different applications. These steel round bars are specifically designed to withstand the harsh marine environment and provide high strength and corrosion resistance. 1. Stainless Steel Round Bars: Stainless steel round bars are widely used in the marine industry due to their excellent corrosion resistance properties. They are resistant to saltwater, acids, and other corrosive elements found in the marine environment. Stainless steel round bars are commonly used for marine fittings, fasteners, and propeller shafts. 2. Carbon Steel Round Bars: Carbon steel round bars are known for their high strength and durability. They are used in various marine applications such as shipbuilding, construction of offshore structures, and fabrication of marine equipment. Carbon steel round bars are available in different grades, with higher carbon content providing increased strength and hardness. 3. Alloy Steel Round Bars: Alloy steel round bars are made by combining different elements such as chromium, nickel, and molybdenum with carbon steel to enhance their mechanical properties. These bars offer excellent strength, toughness, and resistance to corrosion. Alloy steel round bars are commonly used for marine shafts, gears, and structural components. 4. Duplex Stainless Steel Round Bars: Duplex stainless steel round bars are a combination of austenitic and ferritic stainless steels. They offer superior corrosion resistance and high strength, making them ideal for marine applications. Duplex stainless steel round bars are often used in offshore platforms, marine vessels, and underwater equipment. 5. Nickel Alloy Round Bars: Nickel alloy round bars are known for their exceptional resistance to corrosion and high-temperature environments. They are used in critical marine applications where strength, durability, and resistance to corrosive elements are essential. Nickel alloy round bars are commonly used in marine valves, pumps, and heat exchangers. Each type of steel round bar used in the marine industry has its own unique properties and advantages. The selection of the appropriate steel round bar depends on the specific application and requirements of the marine project.
- Q: What is the corrosion resistance of steel round bars?
- The corrosion resistance of steel round bars is contingent upon the type of steel used and the environmental conditions to which they are exposed. Generally, stainless steel round bars exhibit outstanding resistance to corrosion due to the inclusion of chromium, which generates a protective layer of oxide on the steel's surface. This oxide layer acts as a barrier, impeding further corrosion. On the other hand, carbon steel round bars are more vulnerable to corrosion, particularly in environments with high levels of moisture or exposure to corrosive substances. In such cases, additional measures such as coatings or galvanizing may be necessary to enhance their resistance to corrosion. It should be noted that the performance of steel round bars in corrosive environments is influenced by various factors, including temperature, pH level, and the presence of other elements or chemicals. Therefore, it is advisable to consider the specific application and seek guidance from corrosion experts in order to determine the most suitable steel grade and corrosion protection measures for your requirements.
- Q: What are the advantages of using creep-resistant steel round bars?
- The advantages of using creep-resistant steel round bars include: 1. Enhanced strength and durability: Creep-resistant steel has high tensile strength and excellent resistance to deformation at elevated temperatures, making it suitable for applications in high-stress environments. 2. Increased safety: Creep-resistant steel round bars can withstand high temperatures without significant deformation, ensuring structural integrity and preventing failures in critical applications. 3. Extended service life: The resistance to creep deformation allows these round bars to maintain their shape and strength over an extended period, resulting in longer service life and reduced maintenance costs. 4. Versatile applications: Creep-resistant steel round bars are used in various industries, including power generation, oil and gas, petrochemical, and aerospace, due to their ability to withstand high temperatures and stress. 5. Cost-effectiveness: Although creep-resistant steel may have a higher initial cost compared to other materials, its extended service life, reduced maintenance requirements, and improved safety make it a cost-effective choice in the long run.
- Q: How do you prevent warping of steel round bars during machining?
- To prevent warping of steel round bars during machining, there are several measures that can be taken: 1. Proper Material Selection: Choosing the right type of steel with appropriate mechanical properties is crucial. Steel with lower carbon content and controlled alloying elements can help reduce the risk of warping during machining. 2. Pre-Machining Stress Relief: Steel round bars often have internal stresses that can lead to warping during machining. Conducting a stress relief process like annealing or normalizing before machining can help eliminate these internal stresses and minimize warping. 3. Controlled Machining Process: Employing proper machining techniques is vital to prevent warping. This includes using a rigid and stable machine setup, ensuring proper tool geometry and sharpness, and maintaining appropriate cutting speeds and feeds. Continuous monitoring of cutting forces and temperatures can also help in detecting any abnormal conditions that may contribute to warping. 4. Minimizing Heat Build-Up: Excessive heat generated during machining can cause localized expansion and lead to warping. To prevent this, coolant or lubricant should be used to dissipate heat and reduce friction between the tool and the workpiece. Adequate cooling can help maintain a stable temperature and prevent warping. 5. Proper Fixturing: When machining long steel round bars, using suitable fixtures or supports can help prevent excessive deflection or bending. This ensures that the bar remains straight and stable during machining, reducing the chances of warping. 6. Post-Machining Stress Relief: After machining, stress can still be present in the steel round bars. Performing a post-machining stress relief process, such as tempering or normalization, can help further relieve any residual stresses and minimize the risk of warping. By implementing these measures, the risk of warping during machining of steel round bars can be significantly reduced, leading to improved dimensional accuracy and overall quality of the machined parts.
- Q: Can steel round bars be plated?
- Yes, steel round bars can be plated. Plating is a common process used to enhance the appearance and protect the surface of steel bars. The plating can be done using various materials such as chrome, nickel, or zinc, depending on the desired outcome and application of the steel bars. Plating can provide additional corrosion resistance, improve hardness or wear resistance, and also create an attractive finish. It is important to note that proper preparation and cleaning of the steel surface before plating is crucial to ensure a durable and high-quality plated finish.
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Round Bar Q235 3MM-25MM High Quality Hot Rolled GB
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 2000000 m.t./month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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