High Quality Steel Round Bar Q235, A36, SS400
- Ref Price:
-
- Loading Port:
- Lianyungang
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
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Specifications of High Quality Steel Round Bar Q235, A36, SS400
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
Usage and Applications of High Quality Steel Round Bar Q235, A36, SS400
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.
Packaging & Delivery of High Quality Steel Round Bar Q235, A36, SS400
Packaging Detail: All goods are packed in bundle with steel strips and shipped by break bulk vessel or container (depend on target market and different ports)
Delivery Detail: 45 days
Trade terms: FOB, CFR, CIF
MOQ: 25 tons per specification; we can negotiate the quantity if the specification is normal or we have stock of one specification.
Weight: The price invoicing on theoretical weight basis or actual weight basis depends on customer’s request.
Shipment: The shipment of bulk break or container is depends on customer’s request and the situation of the port of destination.
Documents given: Full set of original clean on board bill of lading; Original signed commercial invoice; Original packing list; Policy of insurance; Certificate of origin and what the target market needs.
Production Flow of High Quality Steel Round Bar Q235, A36, SS400
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. The main measures process is high temperature solution and refinement cycle. High temperature solution can improve the carbide morphology and particle size. The aim is to make the loop refinement ultrafine austenite grains.
- Q: Can steel round bars be used in the manufacturing of shafts?
- Shafts can indeed be manufactured using steel round bars. The utilization of steel round bars for shaft production is common owing to their remarkable mechanical properties, durability, and high strength. The bar's circular form facilitates the machining and forming procedures, rendering it appropriate for producing shafts of diverse lengths and sizes. Moreover, heat treatment can be applied to steel round bars to augment their hardness, strength, and resistance to wear, thus enhancing their suitability for shaft applications.
- 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: What are the advantages of using nickel-chromium-molybdenum alloy steel round bars?
- Nickel-chromium-molybdenum alloy steel round bars offer numerous benefits: 1. Exceptional strength and durability: These round bars possess outstanding mechanical properties, including high tensile strength and hardness. As a result, they are ideal for applications that demand robust and long-lasting materials. 2. Enhanced resistance to corrosion: The inclusion of nickel and chromium in the alloy steel composition improves its ability to withstand corrosion. This makes it suitable for use in environments exposed to harsh chemicals or moisture. Consequently, the lifespan of these round bars is extended, reducing the need for frequent replacements. 3. Impressive heat resistance: Nickel-chromium-molybdenum alloy steel round bars can endure high temperatures without compromising their structural integrity. This makes them well-suited for applications involving extreme heat, such as the manufacturing of boilers, heat exchangers, and other heat-resistant equipment. 4. Versatility in fabrication: These round bars can be easily machined and fabricated, enabling the production of various shapes and sizes. This versatility makes them applicable across a wide range of industries, including aerospace, automotive, oil and gas, and construction. 5. Resistance to fatigue: The alloy composition of nickel-chromium-molybdenum steel enhances its resistance to fatigue, making it ideal for applications subjected to cyclic loading or repeated stress. This ensures that the round bars can withstand prolonged use without experiencing fatigue failure. 6. Excellent weldability: Nickel-chromium-molybdenum alloy steel round bars exhibit good weldability, facilitating easy joining or fabrication processes. This makes them suitable for applications that require welding or other forms of joining, providing flexibility in design and construction. In conclusion, the advantages of nickel-chromium-molybdenum alloy steel round bars make them a preferred choice in industries where strength, durability, corrosion resistance, heat resistance, versatility, fatigue resistance, and weldability are crucial factors for success.
- Q: Can steel round bars be bent or formed into shapes?
- Steel round bars possess the ability to undergo bending or shaping into different forms. Due to its exceptional strength and durability, steel is widely recognized as a versatile material suitable for various purposes. To achieve the desired shapes, steel round bars can be bent or formed using diverse techniques such as heating, hammering, or utilizing specialized machinery like hydraulic presses or roll benders. These methods enable the steel bars to be molded into curves, angles, or specific configurations in order to meet the desired requirements. However, it is important to acknowledge that the flexibility of a steel round bar to undergo bending or shaping is contingent upon factors including its diameter, type of steel, and the specific technique employed for bending or forming.
- Q: What are the common sizes of steel round bars?
- The specific application and industry standards determine the varying common sizes of steel round bars. Depending on these factors, the sizes can range from 1/4 inch to 24 inches in diameter. The availability of these sizes is often in increments of 1/8 inch or 1/4 inch. It is worth noting that the sizes may differ based on the country or region. Moreover, metric sizes are also an option, with diameters generally ranging from 6mm to 600mm. The extensive selection of steel round bar sizes enables a wide range of applications across different industries.
- Q: Can steel round bars be used in the power generation industry?
- Yes, steel round bars can be used in the power generation industry. Steel round bars possess high strength and durability, making them suitable for various applications within the industry, such as supporting heavy machinery, constructing power plant structures, and manufacturing turbine components. Additionally, steel's resistance to corrosion and ability to withstand extreme temperatures make it an ideal material choice for the power generation industry.
- Q: How do you measure the diameter tolerance of a steel round bar?
- To measure the diameter tolerance of a steel round bar, you can follow the steps below: 1. Obtain a caliper or micrometer: These measuring tools are commonly used to measure the diameter of objects accurately. 2. Set the measuring tool: If you are using a caliper, adjust the jaws to the appropriate size range. For a micrometer, ensure it is zeroed correctly. 3. Position the round bar: Place the steel round bar on a flat and stable surface, ensuring that it is not rolling or moving. 4. Take the measurement: Use the measuring tool to capture the diameter of the round bar. For accurate results, make sure the tool is perpendicular to the bar and apply gentle pressure to get an accurate reading. 5. Repeat the measurement: To ensure accuracy, take multiple measurements at different points along the length of the round bar. This will account for any variations or deviations in the bar's diameter. 6. Calculate the average diameter: Add up all the measurements and divide by the number of measurements taken. This will give you the average diameter of the round bar. 7. Compare with the tolerance range: Consult the specifications or standards provided for the steel round bar to determine the allowable tolerance range. This range will indicate the acceptable variation in diameter for the bar. 8. Analyze the results: Compare the average diameter obtained from your measurements with the specified tolerance range. If the average diameter falls within the tolerance range, the round bar meets the required specifications. However, if it falls outside the range, the bar may not meet the required tolerance and might need further inspection or adjustment. By following these steps, you can effectively measure the diameter tolerance of a steel round bar and ensure it meets the necessary specifications for your intended application.
- Q: What are the different types of steel round bar surface finishes for corrosion resistance?
- There are several different types of steel round bar surface finishes that are commonly used for corrosion resistance. These finishes provide a protective coating on the surface of the bar, preventing contact with corrosive elements and reducing the risk of rusting or degradation over time. One of the most popular finishes for corrosion resistance is hot-dip galvanizing. This involves immersing the steel round bar in a bath of molten zinc, which forms a layer of zinc coating on the surface. The zinc acts as a sacrificial anode, corroding before the steel does, and providing long-lasting protection against rust and corrosion. Another common surface finish for corrosion resistance is stainless steel. This type of steel contains a minimum of 10.5% chromium, which forms a passive oxide layer on the surface when exposed to oxygen. This layer acts as a barrier, preventing further oxidation and corrosion, making stainless steel round bars highly resistant to rust and other forms of corrosion. Electroplating is another method used to provide corrosion resistance to steel round bars. This process involves immersing the bar in an electrolyte solution and passing an electric current through it. This causes a layer of metal, such as zinc or nickel, to be deposited onto the surface of the bar, providing a protective coating. Powder coating is a popular choice for steel round bars that require both corrosion resistance and aesthetic appeal. This process involves applying a dry powder coating to the surface of the bar and then curing it under heat. The powder melts and forms a hard, durable finish that provides excellent corrosion resistance while also offering a wide range of color options. Additionally, there are specialized coatings available for specific applications, such as epoxy coatings or polymer coatings. These coatings are designed to provide superior resistance to certain corrosive environments, such as exposure to chemicals or high humidity. In summary, the different types of steel round bar surface finishes for corrosion resistance include hot-dip galvanizing, stainless steel, electroplating, powder coating, and specialized coatings. Each of these finishes offers varying levels of protection against rust and corrosion, and the choice of finish depends on factors such as the specific application, environmental conditions, and desired aesthetics.
- Q: What is the difference between a smooth and a precision ground steel round bar?
- A smooth steel round bar is a steel rod with a plain surface and no specific surface treatment or finishing process. It is typically made through hot rolling or cold drawing, resulting in a basic cylindrical shape with a relatively rough surface texture. Smooth steel round bars are commonly used in various applications where a smooth exterior finish is not crucial. On the other hand, a precision ground steel round bar goes through an extra manufacturing process to achieve a more precise and refined surface finish. The process involves removing any imperfections or irregularities from the steel rod's surface, resulting in a highly smooth and polished finish. This ensures that the round bar maintains a consistent diameter along its length and has a superior level of finish and accuracy. Precision ground steel round bars are widely used in applications that require tight tolerances, precision machining, or a smooth and polished surface. Industries such as aerospace, automotive, tooling, and manufacturing often rely on precision ground steel round bars for their high-quality surface finish, dimensional accuracy, and reliable performance. In conclusion, the main distinction between a smooth and a precision ground steel round bar lies in the surface finish and level of precision achieved. While a smooth steel round bar has a basic, rough surface texture and is suitable for general applications, a precision ground steel round bar undergoes additional grinding processes to achieve a highly smooth, polished, and accurate surface finish. This makes it ideal for applications requiring tight tolerances and precision machining.
- Q: What are the advantages of using nickel-aluminum alloy steel round bars?
- Nickel-aluminum alloy steel round bars offer numerous advantages. Firstly, they provide excellent resistance to corrosion, making them suitable for use in environments exposed to moisture, chemicals, or extreme temperatures. This resistance prolongs the lifespan of the bars and reduces the need for frequent maintenance or replacement. Secondly, these round bars demonstrate exceptional strength and toughness, making them ideal for structural applications requiring durability and reliability. Their high strength enables them to withstand heavy loads and impacts without deforming or breaking, ensuring the integrity of the structure. In addition, nickel-aluminum alloy steel round bars possess good heat resistance, allowing them to withstand high temperatures without losing their mechanical properties. This makes them suitable for applications involving heat or thermal cycling, while also maintaining their shape and strength under extreme temperature variations. Furthermore, these round bars exhibit excellent machinability, enabling easy cutting, drilling, and shaping into various forms. This versatility reduces manufacturing time and costs, and also facilitates customization to meet specific design requirements. Moreover, nickel-aluminum alloy steel round bars have good weldability, allowing them to be easily joined to other materials without compromising their mechanical properties. This enables the construction of complex structures or assemblies that require the combination of different materials. In summary, the advantages of nickel-aluminum alloy steel round bars include corrosion resistance, high strength and toughness, heat resistance, good machinability, and weldability. These properties make them a reliable and versatile choice for a wide range of applications in industries such as aerospace, automotive, construction, and marine.
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High Quality Steel Round Bar Q235, A36, SS400
- Ref Price:
-
- Loading Port:
- Lianyungang
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 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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