Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
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OKorder Financial Service
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Product Description:
OKorder is offering Hot Rolled GB Standard Round Steel Bar Q235, SAE1020 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:
Hot Rolled GB Standard Round Steel Bar Q235, SAE1020 are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries. Carbon steel round bar is the most common form of steel because its price is relatively low while it provides material properties that are acceptable for many applications, more so than iron. It is often used when large quantities of steel are needed, for example as structural steel. The density of this product is approximately 7.85g/cm³ and the young's modulus, like all steels.
Product Advantages:
OKorder's Hot Rolled GB Standard Round Steel Bar Q235, SAE1020 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
Specifications of Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
1. Grade: Q235, SS400, S235JR, A36
2. Sizes: Diameter: 6mm-150mm; Length: 6m, 9m, 12m or as customer’s request
3. Type: Mild steel; Low carbon steel
4. Shape: Round bar, solid bar of steel with circular section
5. Technique: Hot rolled or cold drawn
6. Mass: Mass(kg/m) = Diameter(mm)×Diameter(mm)×0.00617
Steel Type | Maximum forging temperature (°F / °C) | Burning temperature (°F / °C) |
1.5% carbon | 1920 / 1049 | 2080 / 1138 |
1.1% carbon | 1980 / 1082 | 2140 / 1171 |
0.9% carbon | 2050 / 1121 | 2230 / 1221 |
0.5% carbon | 2280 / 1249 | 2460 / 1349 |
0.2% carbon | 2410 / 1321 | 2680 / 1471 |
3.0% nickel steel | 2280 / 1249 | 2500 / 1371 |
3.0% nickel–chromium steel | 2280 / 1249 | 2500 / 1371 |
5.0% nickel (case-hardening) steel | 2320 / 1271 | 2640 / 1449 |
Packaging & Delivery of Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
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 Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
1. 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.
2. EAF+LF+VD+ Forged+ Heat Treatment
FAQ:
Q1: How soon can we receive the product after purchase?
A1: 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.
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: Can fit in the containers of 20fts the steel beams of 6M?
A3: No proble, we can put them into the containers in the form sideling.
- Q: What are the different types of corrosion-resistant steel round bars?
- There are several types of corrosion-resistant steel round bars available in the market, including stainless steel round bars (such as austenitic, ferritic, and martensitic stainless steel), duplex stainless steel round bars, and precipitation-hardening stainless steel round bars. These different types of steel round bars offer varying levels of corrosion resistance, strength, and other properties to suit different applications and environments.
- Q: How do you determine the hardness of a steel round bar?
- There are various methods available to determine the hardness of a steel round bar. One commonly used method is the Rockwell hardness test, where a minor load is applied to the bar's surface using a diamond or hardened steel ball, followed by a major load. The depths of penetration for both loads are measured, and the hardness value is determined based on the difference between these depths. Another method is the Brinell hardness test, which involves indenting the steel bar's surface using a hardened steel ball under a specific load. The resulting indentation's diameter is measured, and the hardness value is calculated based on the load and indentation diameter. Alternatively, the Vickers hardness test can also be utilized. This test employs a diamond pyramid-shaped indenter applied to the steel bar's surface under a specific load. The size of the indentation is measured, and the hardness value is determined based on the load and indentation's surface area. It's important to consider that the choice of method depends on factors such as the steel type and desired accuracy of the measurement. Moreover, other factors like heat treatment and composition can impact the steel bar's hardness, so they should be taken into account during hardness determination.
- Q: What is the maximum weight that can be lifted using a steel round bar as a lifting rod?
- The maximum weight that can be lifted using a steel round bar as a lifting rod depends on several factors such as the diameter and length of the bar, the material composition and quality of the steel, and the lifting technique employed. Steel round bars have different load-bearing capacities based on their dimensions and grade. The load-bearing capacity of a steel bar can be calculated using engineering principles and formulas specific to the material and geometry of the bar. To determine the maximum weight that can be lifted with a particular steel round bar, it is necessary to consider its ultimate tensile strength (UTS), yield strength, and factor of safety. The UTS represents the maximum stress a material can withstand before failure, while the yield strength is the stress at which permanent deformation occurs. The factor of safety is a design parameter that accounts for uncertainties and ensures structural integrity. It is crucial to consult engineering references, standards, or professionals to obtain accurate and reliable information regarding the load-bearing capacity of a specific steel round bar. They can provide the necessary calculations, taking into account the diameter, length, and material properties of the bar, as well as the intended lifting application and safety requirements. In summary, the maximum weight that can be lifted using a steel round bar as a lifting rod depends on various factors and cannot be determined without considering the specific characteristics of the bar and the lifting scenario. Consulting engineering resources or experts is essential to ensure safe and accurate calculations.
- Q: What are the different grades of alloy steel round bars for automotive applications?
- There are several different grades of alloy steel round bars used for automotive applications, including 4140, 4340, and 8620. These grades offer varying levels of strength, toughness, and wear resistance, allowing them to be used in different automotive components such as shafts, gears, and axles. The choice of grade depends on the specific requirements of the application, taking into consideration factors like load capacity, durability, and cost.
- Q: Can steel round bars be cold worked?
- Yes, steel round bars can be cold worked. Cold working is a process that involves deforming the steel at room temperature, usually by rolling or drawing, to improve its mechanical properties and dimensional accuracy.
- Q: How do steel round bars compare to wrought iron bars?
- Steel round bars and wrought iron bars have several differences that set them apart. Firstly, steel round bars are made from an alloy of iron and carbon, whereas wrought iron bars are composed of pure iron with a low carbon content. This difference in composition leads to varying properties. Steel round bars are known for their strength and durability, making them suitable for a wide range of applications, including construction, manufacturing, and engineering. On the other hand, wrought iron bars are softer and more malleable, allowing them to be easily shaped and formed into intricate designs. This characteristic makes wrought iron bars popular in decorative applications such as gates, fences, and ornamental pieces. Another difference lies in their manufacturing processes. Steel round bars are typically produced through hot rolling, which involves heating the steel billet and passing it through a series of rollers to shape it into the desired round bar form. In contrast, wrought iron bars are made through a labor-intensive process called blacksmithing. This involves heating the iron and repeatedly hammering it to remove impurities and create a fibrous structure, resulting in its characteristic grainy appearance. In terms of cost, steel round bars are generally more affordable compared to wrought iron bars. The manufacturing process for steel is more streamlined and efficient, leading to lower production costs. Wrought iron bars, on the other hand, require more time and labor, making them more expensive. Finally, when it comes to corrosion resistance, steel round bars have an advantage. Steel can be further alloyed with elements such as chromium, nickel, and molybdenum to enhance its resistance to rust and corrosion. This makes steel round bars suitable for outdoor applications where they may be exposed to moisture and harsh environmental conditions. Wrought iron bars, although they possess some level of corrosion resistance, are more prone to rusting and require regular maintenance to prevent deterioration. In conclusion, steel round bars and wrought iron bars differ in terms of composition, strength, manufacturing process, cost, and corrosion resistance. The choice between the two will depend on the specific requirements of the application, with steel round bars being favored for their strength and affordability, while wrought iron bars are often chosen for their malleability and decorative appeal.
- Q: Can steel round bars be used in electrical applications?
- Steel round bars are indeed applicable for electrical purposes. Due to its excellent conductivity, steel is well-suited for grounding systems and electrical connections. In the construction of electrical transmission towers, electrical enclosures, and electrical panels, steel round bars are frequently utilized. Furthermore, in electrical installations, steel round bars offer structural support, contributing to the system's overall stability and strength. Nevertheless, it is crucial to verify that the steel round bars conform to the required electrical safety standards and possess adequate insulation measures to avert any potential electrical risks.
- Q: How do you prevent steel round bars from rusting during transportation?
- To prevent steel round bars from rusting during transportation, there are several effective measures that can be taken. 1. Proper packaging: The first step is to ensure that the steel round bars are properly packaged. They should be securely wrapped and sealed in a moisture-resistant packaging material such as plastic or shrink wrap. This will create a barrier against moisture and prevent direct contact with air. 2. Desiccants: Including desiccants, such as silica gel packets or moisture-absorbing clay, inside the packaging can help in absorbing any moisture that may be present. These desiccants will help to maintain a dry environment around the steel bars, reducing the chances of rust formation. 3. VCI (Volatile Corrosion Inhibitor) packaging: VCI packaging is an effective method to prevent rust during transportation. VCI materials release a protective vapor that forms a thin protective layer on the steel surface, inhibiting corrosion. VCI films or papers can be used to wrap the steel round bars, providing a long-lasting rust protection. 4. Proper storage conditions: During transportation, it is important to store the steel round bars in a dry and well-ventilated environment. Avoid exposing them to rain, humidity, or extreme temperature fluctuations. If possible, store them in a covered and climate-controlled area to minimize the risk of rust formation. 5. Regular inspection and maintenance: Regularly inspect the steel round bars during transportation to ensure that the packaging remains intact and no moisture has seeped in. If any damage or signs of moisture are detected, immediate action should be taken to rectify the issue and prevent rust from spreading. By implementing these preventive measures, the risk of rust formation on steel round bars during transportation can be significantly reduced, ensuring that they reach their destination in optimal condition.
- Q: Round bars and ribbed stirrups are much better
- The flexibility of hot rolled round steel bar is better than that of ribbed steel bar, and its fatigue stress amplitude is wide allowable. It is suitable for the components under dynamic load, as well as lifting rings, rings and lifting workpieces;
- Q: What is the tensile strength of a steel round bar?
- The tensile strength of a steel round bar is influenced by a range of factors, including the grade of steel, the manufacturing process, and any additional treatments or coatings applied. Typically, steel round bars exhibit high tensile strength due to their composition and structural design. The specific tensile strength can vary significantly based on the grade of steel. For instance, low carbon steel generally has a tensile strength ranging from 400 to 550 MPa (megapascals), while high carbon steel can have a tensile strength of 700 to 1000 MPa or even higher. It should be noted that heat treatment processes like quenching and tempering can further enhance the tensile strength of a steel round bar, resulting in increased strength and hardness. Additionally, the addition of certain alloying elements such as chromium, nickel, and molybdenum can improve the tensile strength and other mechanical properties of steel. To accurately determine the precise tensile strength of a specific steel round bar, it is essential to refer to the manufacturer's specifications or consult relevant industry standards like ASTM or AISI standards. These standards offer comprehensive information on the mechanical properties, including tensile strength, for different steel grades.
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Hot Rolled GB Standard Round Steel Bar Q235, SAE1020
- Ref Price:
-
- Loading Port:
- Shanghai
- Payment Terms:
- TT or LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 200000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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