Hot Rolled Flat Steel Bar with Material Grade Q235
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 m.t./month
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Quality Product, Order Online Tracking, Timely Delivery
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Credit Rating, Credit Services, Credit Purchasing
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OKorder is offering high quality Flat Bar 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:
Slit Cutting Flat Bars are ideal for structural applications and are widely used in the construction of buildings and bridges, and the manufacturing, petrochemical, and transportation industries.
Product Advantages:
OKorder's Flats Bars 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:
Manufacture: Hot Rolled
Grade: Q195 – 235
Certificates: ISO, SGS, BV, CIQ
Length: 6m – 12m, as per customer request
Packaging: Export packing, nude packing, bundled
Chemical composition of Q235
Alloy No | Grade | Element(%) | ||||
C
| Mn
| S
| P
| Si
| ||
Q235
|
B
|
0.12—0.20 |
0.3—0.7 |
≤0.045 |
≤0.045
|
≤0.3
|
Physical properties of Q235
Alloy No | Grade | Yielding strength point(Mpa) | Tensile strength (Mpa) | Elongation after fracture(%) | ||||||
Thickness (mm) | Thickness (mm) | |||||||||
≤16 | ＞16--40 | ＞40--60 | ＞60--100 | ≤16 | ＞16--40 | ＞40--60 | ＞60--100 | |||
≥ | ≥ | |||||||||
Q235 |
B |
235 |
225 |
215 |
205 |
375--500 |
26 |
25 |
24 |
23 |
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: The products are invoicing on theoritical weight or on actual weight?
A3: We can do it in both manners, according to the customers' request.
Images:
- Q: What are the different types of surface defects that can be found in steel flat bars?
- There are several different types of surface defects that can be found in steel flat bars. These defects can vary in severity and may affect the overall quality and performance of the steel. Some common types of surface defects include: 1. Scale: Scale refers to the thin layer of oxide that forms on the surface of steel during the hot rolling process. While it can be removed through various methods, it may still leave behind a rough or uneven surface. 2. Pitting: Pitting is characterized by small, localized depressions or craters on the surface of the steel. It can be caused by corrosion, improper storage, or manufacturing processes. 3. Scratches: Scratches are visible marks or lines on the surface of the steel, which can be caused during handling, transportation, or processing. While they may not affect the structural integrity, they can impact the aesthetic appeal of the steel. 4. Lamination: Lamination refers to the separation or splitting of steel layers along the surface. It can be caused by poor quality control during manufacturing or excessive rolling. 5. Roll marks: Roll marks are repetitive patterns or lines on the surface of the steel caused by the rolling process. These marks can affect the appearance and flatness of the steel. 6. Inclusions: Inclusions are non-metallic substances that are trapped within the steel during the manufacturing process. These include oxides, slag, or other impurities that can form visible spots or irregularities on the surface. 7. Decarburization: Decarburization occurs when the surface of the steel loses its carbon content due to exposure to high temperatures or improper heat treatment. This can result in a softer or weaker surface layer. 8. Cracks: Cracks are visible fractures or breaks in the steel surface, which can be caused by excessive stress, improper cooling, or poor manufacturing practices. These defects can significantly compromise the strength and integrity of the steel. It is important to inspect and identify these surface defects in steel flat bars to ensure that the material meets the required specifications and standards. Depending on the severity of the defect, appropriate measures such as grinding, polishing, or even rejecting the material may be necessary.
- Q: How do steel flat bars contribute to the overall durability of commercial structures?
- Steel flat bars contribute to the overall durability of commercial structures in several ways. Firstly, steel is known for its high strength and durability, making it an ideal material for construction. Steel flat bars have a high tensile strength, meaning they can withstand heavy loads and resist bending or warping under pressure. This strength allows commercial structures to support the weight of various elements, such as floors, walls, and roofs, ensuring their stability over time. Additionally, steel flat bars are resistant to corrosion, which is crucial in commercial structures where exposure to moisture and harsh weather conditions is common. Unlike other materials like wood or concrete, steel does not rot or deteriorate when exposed to water or moisture. This corrosion resistance helps prevent structural damage, ensuring the longevity and safety of the commercial building. Moreover, steel flat bars are highly versatile and can be customized to fit specific design requirements. They can be easily cut, drilled, and welded, allowing for flexibility in creating complex and intricate structures. This adaptability in design ensures that commercial structures can be constructed efficiently and with precision, resulting in a more durable and reliable building. Another important aspect is the fire resistance of steel flat bars. Steel is inherently non-combustible, meaning it does not contribute to the spread or intensity of fires. This fire-resistant quality makes steel flat bars a preferred material for commercial structures, as it enhances the safety of occupants and minimizes the potential for structural damage in the event of a fire. Lastly, steel flat bars are often used in reinforcement applications. They can be embedded within concrete structures, such as beams or columns, to enhance their load-bearing capacity. This reinforcement adds an extra layer of strength and durability to the commercial building, ensuring its ability to withstand heavy loads and potential impacts. In summary, steel flat bars contribute to the overall durability of commercial structures through their high strength, corrosion resistance, versatility in design, fire resistance, and reinforcement capabilities. Their incorporation in construction ensures the longevity, safety, and stability of commercial buildings, making them an essential component in the construction industry.
- Q: Are steel flat bars suitable for making brackets or supports for fire protection systems?
- Indeed, steel flat bars possess the appropriate qualities to serve as brackets or supports for fire protection systems. Renowned for its robustness and longevity, steel stands as a dependable substance for fashioning such components. The demands of fire protection systems often necessitate the presence of resilient and heat-resistant elements, prerequisites that steel flat bars fulfill. These bars can be effortlessly molded and joined through welding techniques to produce tailor-made brackets or supports capable of enduring the burdensome loads and strains involved in fire protection systems. Moreover, steel's non-combustible nature and elevated melting point amplify its appropriateness for fire protection purposes.
- Q: What are the different joining methods for steel flat bars?
- When it comes to joining steel flat bars, there are various methods available, depending on the specific application and desired outcome. Some commonly used methods include welding, bolting, riveting, and adhesive bonding. 1. Welding, a versatile and widely used method, involves heating the surfaces of the bars until they melt and then fusing them together using a filler material. This creates a strong and permanent bond between the flat bars. 2. Bolting is a simple yet effective method that uses bolts and nuts to join steel flat bars. It allows for easy disassembly and reassembly if needed, providing a strong and rigid connection suitable for applications requiring frequent assembly and disassembly. 3. Riveting is a mechanical joining method that entails drilling holes in the bars and using rivets to secure the connection. It offers a robust and durable joint, making it suitable for applications requiring high strength and resistance to vibrations. 4. Adhesive bonding involves using industrial adhesives to join steel flat bars. This method is flexible, allowing for the bonding of different materials, and ensures uniform stress distribution. It also provides good resistance to corrosion, making it suitable for applications where other methods may not be practical or suitable. Each joining method has its advantages and limitations, and the choice depends on factors such as application requirements, material properties, and cost considerations. Selecting the appropriate method is crucial to ensuring a secure and durable connection between steel flat bars.
- Q: How large is the flat steel used for equipotential grounding?
- According to the GB 50054-2011 3.2.15 6# responses (table 3.2.15), the distribution system of equipotential bonding conductor may be 25mm2 copper; when the 1/2PE line section of not less than the case, must use 25mm2 copper (or the equivalent capacity of aluminum or steel); according to the GB 50057-2010 5.1.2 (table 5.1.2), lightning protection system equipotential bonding conductors with 16mm2 copper, can meet the minimum section of all the connecting parts of the requirements of lightning protection device. Therefore, "lightning protection system equipotential" equipotential bonding conductor specification is greater than "distribution system equipotential" equipotential connection conductor is not necessarily established.
- Q: What are the different testing methods used for quality control of steel flat bars?
- There are several testing methods used for quality control of steel flat bars. These methods are employed to ensure that the steel bars meet the required standards and specifications. Some of the commonly used testing methods for quality control of steel flat bars include: 1. Visual Inspection: This is the most basic and initial testing method, where the flat bars are visually inspected for any visible defects such as cracks, surface imperfections, or unevenness. 2. Dimensional Inspection: This method involves measuring the dimensions of the steel flat bars using various tools such as calipers, micrometers, or laser measuring devices. The dimensions are compared against the specified tolerances to ensure they meet the required standards. 3. Ultrasonic Testing: This non-destructive testing method utilizes high-frequency sound waves to detect any internal defects or discontinuities in the steel flat bars. Ultrasonic waves are passed through the bars, and the reflected waves are analyzed to identify any flaws. 4. Magnetic Particle Inspection: This method is used to detect surface and near-surface defects in the steel flat bars. It involves applying a magnetic field to the bars and then applying magnetic particles, which will accumulate at areas of magnetic leakage caused by defects. 5. Dye Penetrant Testing: This method is employed to detect surface defects and cracks in the steel flat bars. A liquid dye penetrant is applied to the surface, and after a specified time, excess dye is removed. A developer is then applied, which draws out the dye from any surface defects, making them visible. 6. Tensile Testing: This destructive testing method involves subjecting a sample of the steel flat bar to tension until it fractures. The test measures the maximum load the sample can withstand and determines its tensile strength, yield strength, and elongation properties. 7. Hardness Testing: This method measures the hardness of the steel flat bars using specialized tools such as a hardness tester or a Rockwell hardness tester. The hardness values obtained help evaluate the material's strength and suitability for specific applications. 8. Chemical Analysis: This testing method involves analyzing the chemical composition of the steel flat bars to ensure they meet the required specifications. It includes determining the percentage of various elements such as carbon, manganese, sulfur, phosphorus, and others. By utilizing these testing methods, manufacturers can ensure that steel flat bars meet the necessary quality standards and are suitable for various applications in construction, manufacturing, and other industries.
- Q: Can steel flat bars be used for shelving systems?
- Yes, steel flat bars can be used for shelving systems. Steel is a strong and durable material, making it suitable for supporting heavy loads. Flat bars can be easily shaped and welded to create sturdy shelving frames, providing a stable and long-lasting storage solution.
- Q: 8 what is the flat density?
- 8 mm flat steel density is about 7.85 g / cm.
- Q: What are the different packaging options for steel flat bars?
- Customers have various packaging options available for steel flat bars, depending on their specific requirements and preferences. One commonly used packaging option is bundle packaging. This involves bundling multiple steel flat bars together using steel straps or wire ties to ensure secure transportation and storage. Bundle packaging is typically utilized for smaller quantities of flat bars. For larger quantities, steel flat bars can be shipped in steel crates or pallets. These crates or pallets, made of either steel or wood, offer added protection during transit. Loading and unloading can be easily done using forklifts or other handling equipment. Another packaging option is coil packaging, which involves coiling the steel flat bars into a circular shape. This method is commonly employed for longer and thinner flat bars as it facilitates easier handling and reduces the risk of damage during transportation. Coil packaging is particularly popular in industries such as construction and manufacturing. In addition to these options, steel flat bars can be packaged in customized solutions tailored to meet specific requirements. This may involve using additional protective materials such as cardboard or plastic wrapping, foam inserts, or wooden crates, depending on the desired level of protection. In conclusion, the packaging options for steel flat bars are diverse and can be personalized to suit the needs of different customers. The choice of packaging depends on factors such as the quantity, size, and shape of the flat bars, as well as the transportation and storage conditions.
- Q: What are the weight and strength properties of steel flat bars?
- The weight and strength properties of steel flat bars vary depending on their specific grade and dimensions. Steel flat bars are widely recognized for their high strength-to-weight ratio, making them a popular choice in multiple industries. The weight of a steel flat bar depends on factors such as length, width, and thickness. The strength properties are determined by the grade of steel used, including mild steel, carbon steel, and alloy steel, each with distinct levels of strength. Furthermore, strength can be further enhanced through processes like heat treatment or cold working. Steel flat bars possess excellent tensile and yield strength, enabling them to withstand heavy loads and resist deformation. They are also highly durable and resistant to corrosion, making them suitable for structural applications, construction projects, and manufacturing processes. In summary, the weight and strength properties of steel flat bars can be tailored to meet specific requirements, making them a versatile and dependable material for a variety of applications.
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Hot Rolled Flat Steel Bar with Material Grade Q235
- Ref Price:
-
- Loading Port:
- Tianjin
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 25 m.t.
- Supply Capability:
- 10000 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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