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Product Description:

Specification of Mild Steel Flat Bar

Commodity: Mild Steel Flat Bar

Standard: GB;JIS

Material: Q195-235;SS400

Brand name: FLATSPACE

Origin place: China

Thickness: 3mm-30mm

Width:20mm-200mm

Length: Max 12m

Certification: SGS/BV

Chemical composition of Q235

Alloy No

Grade

Element(%)

Q235

0.12—0.20

0.3—0.7

≤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

Usage/Applications of Mild Steel Flat Bar

Widely used for construction, Machinery manufacturing, Iron tower steel structure, Shipbuilding; Steel grating, Staircase, Bridge, Viaduct, Railway spare parts, Boilers making etc.

Packaging & Delivery of Mild Steel Flat Bar

Packaging Details: The Mild Steel Flat Bars are packed in bundles and loaded in 20 feet/40 feet container, or shipped by bulk cargo ,also we can do as customer's requirements.

Delivery Details:30~45 days upon the receipt of buyer payment by T.T. or L/C.

Production Flow of Mild Steel Flat Bar

The Mild steel flat bar is made through three processes:

1.Feeding the material: Feeding the row material (the steel plate) to Slitting Line.

2.Slitting:The steel plate would be slitted into expected width by lengthways cutter.

3. Leveled and cutting: The plat bar would be ground into level by the grinder and then cut into required length

Q:Can steel flat bars be used in food processing industries?: Steel flat bars cannot be used in food processing industries due to their composition of carbon steel, which has the potential to corrode and react with food substances. This can result in food contamination and compromise its safety and quality. In order to maintain food hygiene and safety, it is imperative for food processing industries to prioritize the use of materials that are food-grade and resistant to corrosion, such as stainless steel. Stainless steel is an ideal choice as it does not react with food, is easy to clean, and possesses exceptional durability. Therefore, the utilization of stainless steel flat bars or other food-grade materials is crucial for ensuring the hygiene and safety of processed food products in the food processing industries.

Q:Are steel flat bars suitable for structural applications?: Yes, steel flat bars are suitable for structural applications. They are commonly used in the construction industry for various structural purposes such as beams, columns, and braces. Steel flat bars offer several advantages that make them suitable for structural applications. Firstly, steel is known for its strength and durability, and this applies to flat bars as well. They have a high tensile strength, which allows them to withstand heavy loads and provide structural stability. Steel flat bars also have excellent resistance to bending and twisting forces, making them reliable for structural applications. Additionally, steel flat bars are versatile and can be easily modified or fabricated to meet specific design requirements. They can be cut, welded, drilled, and shaped to create various structural components, offering flexibility in construction projects. Moreover, steel flat bars are available in different sizes and thicknesses, allowing for customization to suit specific structural needs. Furthermore, steel is a cost-effective material for structural applications. It is readily available and has a long lifespan, reducing the need for frequent maintenance or replacements. Steel also has good fire resistance properties, which is crucial for ensuring the safety of structures. In conclusion, steel flat bars are indeed suitable for structural applications due to their strength, durability, versatility, and cost-effectiveness. They are widely used in the construction industry and offer numerous benefits that make them a reliable choice for various structural components.

Q:What are the properties of steel flat bars?: Steel flat bars are rectangular-shaped bars made of steel, known for their versatility and strength. These bars have several properties that make them suitable for various applications. Firstly, steel flat bars have excellent tensile strength, which means they can withstand high levels of tension without breaking or deforming. This property makes them ideal for structural applications where strength and durability are crucial, such as in building construction and engineering projects. Another important property of steel flat bars is their ability to resist corrosion. Steel is typically alloyed with other elements, such as chromium or nickel, to enhance its corrosion resistance. This makes steel flat bars suitable for outdoor applications or in environments exposed to moisture, chemicals, or extreme temperatures. Steel flat bars also have good weldability, meaning they can be easily welded or joined together using various welding techniques. This property allows for the fabrication of complex structures or the reinforcement of existing ones, making steel flat bars a popular choice in the manufacturing and construction industries. In addition, steel flat bars have a high melting point, which makes them suitable for applications that involve exposure to high temperatures. They can withstand heat without losing their structural integrity, making them suitable for use in furnaces, ovens, or industrial machinery. Lastly, steel flat bars can be easily machined, cut, or shaped to meet specific requirements. This property allows for customization and versatility in various applications, including the manufacturing of machinery parts, brackets, frames, and supports. Overall, the properties of steel flat bars, including their strength, corrosion resistance, weldability, high melting point, and machinability, make them a versatile and reliable choice for a wide range of applications in numerous industries.

Q:Can steel flat bars be bent without cracking?: Yes, steel flat bars can be bent without cracking, depending on their composition, thickness, and the bending process used. Steel is a highly malleable material, meaning it can be bent or shaped without breaking. However, it is important to note that the extent to which steel bars can be bent without cracking varies based on several factors. The composition of the steel is crucial in determining its flexibility and resistance to cracking. Different grades of steel have varying levels of ductility, with more ductile steels being better suited for bending without cracking. For instance, mild steel is known for its excellent ductility and is commonly used for bending operations without issues. The thickness of the steel bar also plays a role in its ability to withstand bending without cracking. Thinner bars are generally more prone to cracking, especially if the bending radius is too small. It is important to ensure that the bending process corresponds to the thickness of the steel bar to prevent cracking. The bending process itself is crucial in avoiding cracking. Generally, steel flat bars can be bent using different techniques such as cold bending or hot bending. Cold bending is typically performed at room temperature and involves slowly applying force to the bar until it reaches the desired shape. Hot bending, on the other hand, involves heating the steel bar to a specific temperature range before bending. The heat reduces the risk of cracking by increasing the material's ductility. Applying gradual and even pressure during the bending process is crucial to avoid cracking. Sharp or sudden bends can create stress concentrations, increasing the likelihood of cracking. It is recommended to use appropriate tools, such as bending machines or specialized dies, to ensure a controlled and uniform bending process. In summary, steel flat bars can be bent without cracking if the steel composition is suitable, the thickness is appropriate, and the bending process is carefully executed. It is always advisable to consult with experts or refer to specific guidelines and standards to ensure a successful and crack-free bending operation.

Q:How do you prevent scaling or oxidation on steel flat bars during heat treatment?: To prevent scaling or oxidation on steel flat bars during heat treatment, there are several measures that can be taken: 1. Utilize a protective atmosphere: An effective method involves subjecting the steel flat bars to heat treatment in a controlled atmosphere, such as vacuum or an inert gas environment like nitrogen or argon. This approach ensures that the steel remains isolated from oxygen, thereby minimizing the potential for oxidation. 2. Employ a protective coating: Another approach is to apply a protective coating onto the flat bars' surface prior to heat treatment. This can be accomplished by utilizing various coatings like ceramic, refractory, or metallic coatings. These coatings serve as a barrier between the steel and the surrounding atmosphere, effectively preventing oxidation. 3. Implement a reducing atmosphere: Heat treating the steel in a reducing atmosphere, such as hydrogen or a hydrogen-nitrogen mixture, can also prevent scaling and oxidation. The reducing atmosphere aids in eliminating any present oxygen and inhibits the formation of oxides on the steel's surface. 4. Control the heating process: The proper control of the heating process plays a crucial role in preventing scaling and oxidation. It is important to avoid rapid heating and cooling rates, as they can result in excessive scaling. Instead, employing slow and controlled heating with appropriate temperature ramping can help minimize the likelihood of oxidation. 5. Ensure surface cleanliness: Before heat treatment, it is essential to thoroughly clean the surface of the steel flat bars. Any contaminants, such as dirt, grease, or oils, can contribute to scaling and oxidation. Employing surface cleaning methods like degreasing, pickling, or mechanical cleaning can effectively eliminate these contaminants. By implementing these preventive measures, the risk of scaling or oxidation on steel flat bars during heat treatment can be significantly reduced, thereby ensuring the production of high-quality final products.

Q:How do you determine the weight capacity of a steel flat bar shelf?: To determine the weight capacity of a steel flat bar shelf, there are several factors to consider. First, you need to know the dimensions of the shelf, including its length, width, and thickness. These dimensions will affect the overall strength and load-bearing capacity of the shelf. Next, you should identify the type of steel used in the construction of the flat bar shelf. Different types of steel have varying levels of strength and durability, which will impact the weight capacity. Additionally, you need to determine the distribution of weight across the shelf. If the weight is evenly distributed, the shelf will generally have a higher weight capacity compared to if the weight is concentrated in a specific area. It is also important to consider any additional factors that may affect the weight capacity, such as the method of installation or support. For example, if the shelf is secured to a wall or supported by brackets, the weight capacity may be influenced by the strength of these supporting elements. To determine the weight capacity more precisely, you can consult engineering tables or reference guides that provide load ratings for different steel flat bar sizes and types. These resources consider factors such as the yield strength and ultimate strength of the steel, as well as any applicable safety factors. Alternatively, if you have specific requirements or concerns, it is recommended to consult with a structural engineer or a professional in the field who can provide a more accurate assessment of the weight capacity based on the specific details of the steel flat bar shelf.

Q:Can steel flat bars be painted?: Indeed, it is possible to paint steel flat bars. However, prior to commencing the painting process, it is pivotal to adequately prepare the surface. This entails undertaking a thorough cleaning to eliminate any dirt, grease, or rust. Should any rust be present, it ought to be eradicated using either sandpaper or a wire brush. Once the surface has been cleaned and rendered smooth, it becomes imperative to administer an appropriate primer to guarantee optimal adhesion of the paint. Subsequently, once the primer has dried, one may proceed to apply a single or multiple coats of paint using a paintbrush, roller, or spray paint. It is highly recommended to utilize a paint specifically formulated for metal surfaces as this will enhance the durability and longevity of the paint job.

Q:How do steel flat bars perform in extreme weather conditions?: Steel flat bars are known for their exceptional strength and durability, which makes them highly resistant to extreme weather conditions. They are capable of withstanding high temperatures, heavy rain, snow, and even strong winds. In extreme heat, steel flat bars have a high melting point, which means they can withstand prolonged exposure to intense heat without warping or losing their structural integrity. This makes them ideal for applications in areas with high temperatures, such as deserts or industrial settings. During heavy rain or snowfall, steel flat bars are highly resistant to corrosion and do not rust easily. This makes them suitable for outdoor applications where they may be exposed to moisture for extended periods. Moreover, their smooth surface allows water to run off easily, preventing the accumulation of water and reducing the risk of damage caused by freezing and thawing cycles. In areas prone to strong winds or storms, steel flat bars are known for their exceptional strength and stability. They can withstand high wind pressures and resist bending or breaking, making them a reliable choice for structures such as fences, barriers, and support beams. However, it is important to note that even though steel flat bars are highly resistant to extreme weather conditions, they still require proper maintenance to ensure their longevity. Regular cleaning, inspection, and applying protective coatings can help prevent any potential damage or deterioration caused by weathering. Overall, steel flat bars are a reliable choice for applications in extreme weather conditions due to their strength, durability, and resistance to corrosion.

Q:Are steel flat bars suitable for machining or drilling?: Steel flat bars are indeed suitable for machining and drilling. Steel is a strong and durable material that can be easily shaped, cut, and drilled into various forms. Flat bars, in particular, provide a stable and rigid surface for machining operations, allowing for precise and accurate cuts. With the right tools and techniques, steel flat bars can be easily drilled to create holes of different sizes and shapes. Whether it is for creating prototypes, constructing machinery, or any other application that requires precise shaping and drilling, steel flat bars are a reliable choice.

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