• hot rolled high quality GB Q235 flat bar System 1
hot rolled high quality GB Q235 flat bar

hot rolled high quality GB Q235 flat bar

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
24000 m.t./month

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lat bar Details:

Minimum Order Quantity:
Unit:m.t.Loading Port:
Supply Ability:10000Payment Terms:
Package:Steel Packing

Product Description:

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(%)

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
















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:What are the dimensions of a typical steel flat bar?
The dimensions of a typical steel flat bar can vary depending on the specific requirements and intended use. However, common dimensions for a standard steel flat bar typically range from 1/8 inch to 1 inch in thickness and 1/2 inch to 12 inches in width. The length can vary but is often around 20 feet.
Q:How do steel flat bars perform in terms of impact resistance?
Steel flat bars have excellent impact resistance properties. Due to their high strength and toughness, they are able to withstand significant forces and impacts without breaking or deforming. This makes them highly suitable for applications where impact resistance is crucial, such as in construction, manufacturing, and automotive industries. Steel flat bars can absorb and distribute the energy from an impact, preventing damage to the structure or equipment they are used in. Additionally, their rigidity and stability contribute to their ability to withstand impact, making them a reliable choice for various structural and load-bearing applications.
Q:How do steel flat bars compare to titanium flat bars?
Steel flat bars and titanium flat bars have some similarities, but also significant differences. In terms of strength, titanium flat bars are known to have a higher strength-to-weight ratio than steel flat bars. Titanium is a lightweight metal that exhibits exceptional strength, making it ideal for applications that require both durability and lightness. Steel, on the other hand, is heavier but still robust, offering good strength for various purposes. When it comes to corrosion resistance, titanium flat bars outperform steel flat bars. Titanium has excellent corrosion resistance, even in harsh environments, making it highly suitable for applications in marine, chemical, and aerospace industries. Steel, however, is more prone to corrosion and requires protective coatings or regular maintenance to prevent rusting. Another significant factor to consider is cost. Steel flat bars are generally more affordable compared to titanium flat bars. Titanium is a relatively rare and expensive material, which contributes to its higher price tag. Steel is widely available and has a lower cost, making it a more cost-effective choice for many applications. Additionally, titanium offers unique properties that make it stand out in certain industries. It has superb biocompatibility, making it valuable in medical and dental implants. Titanium is also non-magnetic, making it useful in applications that require non-magnetic properties, such as aerospace and electronics. In summary, titanium flat bars offer a higher strength-to-weight ratio, superior corrosion resistance, and unique properties like biocompatibility and non-magnetism. Steel flat bars, on the other hand, are more affordable and still provide good strength. The choice between the two will ultimately depend on the specific requirements of the application and the available budget.
Q:What are the different surface treatments available for steel flat bars?
There are several different surface treatments available for steel flat bars, each providing unique advantages and characteristics. Some of the common surface treatments for steel flat bars include: 1. Hot-dip galvanizing: This process involves immersing the steel flat bar in a bath of molten zinc, which creates a protective coating on the surface. Hot-dip galvanizing provides excellent corrosion resistance, making it suitable for outdoor applications where the steel may be exposed to moisture or harsh environmental conditions. 2. Electroplating: Electroplating involves depositing a thin layer of metal onto the surface of the steel flat bar through an electrochemical process. This treatment can be used to enhance the appearance of the steel, improve corrosion resistance, or provide other desired properties, depending on the metal used for plating. 3. Powder coating: Powder coating is a dry finishing process where a fine powder is applied to the steel flat bar electrostatically and then cured under heat. This treatment creates a durable and attractive surface that is resistant to chipping, scratching, and fading. Powder coating is available in a wide range of colors and textures, allowing for customization and versatility. 4. Paint coating: Steel flat bars can be coated with various types of paints to improve aesthetics, provide corrosion protection, or enhance other properties. Different types of paint coatings, such as epoxy, enamel, or polyurethane, can be used depending on the specific requirements and desired appearance. 5. Shot blasting: Shot blasting involves propelling abrasive particles at high speed onto the surface of the steel flat bar to remove rust, scale, and other contaminants. This treatment helps to improve the adhesion of subsequent coatings, such as paints or galvanizing, and provides a clean, smooth surface. 6. Passivation: Passivation is a chemical treatment that removes surface contaminants and forms a protective oxide layer on the steel flat bar. This treatment enhances the corrosion resistance of stainless steel flat bars, making them more suitable for applications where they may be exposed to corrosive environments. 7. Acid etching: Acid etching is a process that involves treating the surface of the steel flat bar with an acidic solution to create a textured or patterned finish. This treatment can be used for decorative purposes or to improve the grip of the steel in certain applications. It is important to consider the specific requirements of your application, such as corrosion resistance, appearance, durability, and cost, when selecting the most appropriate surface treatment for steel flat bars.
Q:Can steel flat bars be drilled or tapped easily?
Drilling or tapping steel flat bars is a breeze. Steel is a versatile material that can be machined using a variety of tools and techniques. To drill holes in steel flat bars, you can use either a drill press or a handheld drill with the appropriate drill bit. Likewise, creating threads in steel flat bars is achievable with a tap and die set. However, the ease of drilling or tapping may vary depending on the thickness and hardness of the steel. Thicker and harder steel bars may require more power and specialized tools for drilling or tapping. Moreover, employing cutting fluids or lubricants can enhance the ease and efficiency of the drilling or tapping process.
Q:What are the different types of steel surface treatments available for flat bars?
There are several types of steel surface treatments available for flat bars, including hot-dip galvanizing, electroplating, powder coating, and painting. These treatments help to enhance the corrosion resistance, durability, and aesthetic appearance of the flat bars, making them suitable for various applications in industries such as construction, automotive, and manufacturing.
Q:How do you remove burrs or sharp edges from steel flat bars?
One common method to remove burrs or sharp edges from steel flat bars is by using a deburring tool or a file. The deburring tool is specifically designed to remove burrs and can be passed along the edges of the bar to smooth them out. Alternatively, a file can be used to manually file down the burrs and sharp edges until they are smooth.
Q:Are steel flat bars suitable for marine applications?
Steel flat bars can be suitable for marine applications depending on the specific requirements of the project. While steel is a strong and durable material, it is susceptible to corrosion in marine environments due to the presence of moisture, saltwater, and air. To enhance the suitability of steel flat bars for marine applications, they can be coated or treated with corrosion-resistant materials such as galvanization or stainless steel. These coatings create a protective barrier that prevents or slows down the corrosion process. Additionally, the choice of steel grade is crucial, with marine-grade stainless steel (such as 316 or 316L) being highly resistant to corrosion in saltwater environments. Therefore, when selecting steel flat bars for marine applications, it is essential to consider the specific environmental conditions and choose materials and coatings accordingly to ensure long-term durability and performance.
Q:What industries commonly use steel flat bars?
Steel flat bars find widespread use across a diverse range of industries owing to their versatility and durability. Construction, manufacturing, automotive, infrastructure, and engineering are some of the sectors that frequently employ steel flat bars. Within the construction industry, steel flat bars serve multiple purposes, functioning as support beams, frames, braces, and structural components in buildings and bridges. By offering strength and stability, they prove ideal for withstanding heavy loads and pressure. In manufacturing, steel flat bars play a crucial role in the fabrication of machinery, equipment, and tools. Their malleability allows for easy shaping and machining, enabling them to meet specific requirements and suit various manufacturing processes. The automotive industry relies on steel flat bars extensively, particularly in the production of vehicle chassis and body frames. These bars provide the necessary strength and rigidity to endure the stresses and strains endured by automobiles, ensuring safety and durability. Infrastructure projects such as highways, railways, and airports make extensive use of steel flat bars as well. They are employed in the construction of beams, columns, and other structural elements, furnishing the requisite strength to bear heavy loads and withstand environmental conditions. Engineering industries heavily depend on steel flat bars for a wide array of applications. These bars are commonly utilized in the fabrication of machinery, equipment, and components that necessitate strength, resilience, and versatility. Furthermore, they are used in constructing support structures, frames, and braces required for various engineering projects. In conclusion, steel flat bars are widely utilized in the construction, manufacturing, automotive, infrastructure, and engineering sectors. Their versatility, strength, and durability render them indispensable for numerous applications and projects within these industries.
Q:What are the different types of steel alloys used for flat bars?
There are several different types of steel alloys that are commonly used for flat bars, each with its own unique properties and advantages. Some of the most common types include: 1. Carbon Steel: This is the most basic and widely used type of steel alloy for flat bars. It consists mainly of iron and carbon, with small amounts of other elements. Carbon steel is known for its strength and durability, making it suitable for a wide range of applications. 2. Stainless Steel: This type of steel alloy contains a high percentage of chromium, which gives it excellent corrosion resistance. Stainless steel flat bars are often used in environments where they may be exposed to moisture or harsh chemicals. 3. Alloy Steel: This category includes a wide range of steel alloys that have been specially formulated to enhance specific properties. For example, some alloy steels have increased strength, while others have improved heat resistance or wear resistance. Alloy steel flat bars are commonly used in industries such as construction, automotive, and manufacturing. 4. Tool Steel: This type of steel alloy is specifically designed to have high hardness, wear resistance, and toughness. Tool steel flat bars are commonly used in the production of tools, dies, and molds. 5. Spring Steel: As the name suggests, this type of steel alloy is known for its ability to retain its shape and strength even when subjected to repeated bending or twisting. Spring steel flat bars are widely used in the manufacture of springs, clips, and other components that require elasticity. These are just a few examples of the different types of steel alloys used for flat bars. The choice of alloy depends on the specific application and desired properties, such as strength, corrosion resistance, or wear resistance.

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