Mild Carbon Steel Flat Bar
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- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- 10000 m.t./month
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Specification of Carbon Steel Flat Bar
Commodity: Carbon Steel Flat Bar
Standard: GB, JIS, ASTM,
Material: Q235, SS400 or Equivalent
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 Carbon 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 Carbon Steel Flat Bar
Packaging Details: The 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 Carbon Steel Flat Bar
The Carbon 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.
FAQ:
Q1: What makes stainless steel stainless?
A1: Stainless steel must contain at least 10.5 % chromium. It is this element that reacts with the oxygen in the air to form a complex chrome-oxide surface layer that is invisible but strong enough to prevent further oxygen from "staining" (rusting) the surface. Higher levels of chromium and the addition of other alloying elements such as nickel and molybdenum enhance this surface layer and improve the corrosion resistance of the stainless material.
Q2: Can stainless steel rust?
A2: Stainless does not "rust" as you think of regular steel rusting with a red oxide on the surface that flakes off. If you see red rust it is probably due to some iron particles that have contaminated the surface of the stainless steel and it is these iron particles that are rusting. Look at the source of the rusting and see if you can remove it from the surface.
Q3: Why buy Materials & Equipment from OKorder.com?
A3: 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.
- Q: What are the different methods of surface finishing for steel flat bars?
- Steel flat bars can be finished using a variety of methods, each offering unique benefits and applications. Some commonly used methods include: 1. Hot-dip galvanizing: By immersing the steel flat bars in molten zinc, a protective coating is formed that provides excellent corrosion resistance. This method is ideal for outdoor applications requiring durability in harsh environments. 2. Powder coating: Dry powder is electrostatically applied to the surface of the steel flat bars and then heated to create a long-lasting and visually appealing coating. Powder coating offers a wide range of colors and finishes, making it popular for decorative purposes while also protecting against corrosion, abrasion, and fading. 3. Electroplating: This method involves depositing a thin layer of metal, such as chrome or nickel, onto the steel flat bars through an electrochemical process. It enhances the appearance of the steel by providing a shiny, reflective surface, while also improving corrosion resistance. 4. Paint coating: A common method of surface finishing, paint coating offers versatility in terms of color and finish. It allows for customization to meet specific aesthetic requirements and provides protection against corrosion. Paint coatings can be easily reapplied or changed as needed. 5. Passivation: This chemical process is particularly useful for stainless steel flat bars. It removes iron contaminants from the surface, enhancing corrosion resistance and forming a protective passive layer that prevents rusting and staining. 6. Brushing or grinding: By brushing or grinding the surface of steel flat bars, a brushed or polished finish can be achieved. This method removes imperfections or scale, resulting in a smooth and visually pleasing appearance. The choice of surface finishing method depends on various factors such as the intended application, desired appearance, and required level of protection against corrosion and wear. Each method has its own advantages and disadvantages.
- Q: Can steel flat bars be used as reinforcement in concrete?
- Steel flat bars can indeed serve as reinforcement in concrete. They are widely recognized as either flat bars or flat steel bars. Concrete structures frequently incorporate these bars to bolster their strength, longevity, and overall stability. By integrating the steel bars into the concrete matrix, they confer tensile strength and safeguard against cracking or failure when subjected to a load. Utilizing flat bars as reinforcement in concrete yields numerous benefits, including heightened resistance to bending, augmented load-bearing capacity, and enhanced structural integrity.
- Q: What are the different types of surface coatings available for steel flat bars?
- Steel flat bars can be coated with various types of surface coatings, each offering its own advantages and characteristics. 1. Galvanized Coating: Applying a layer of zinc to the steel flat bar surface is a commonly used coating. This coating provides excellent protection against corrosion and environmental factors, preventing rust. 2. Powder Coating: In this process, a dry powder is applied to the steel flat bar and then heated to create a durable coating. Powder coating is popular for both decorative and protective purposes due to its wide range of colors and finishes. 3. Epoxy Coating: Known for its strong adhesion and chemical resistance, epoxy coatings create a tough and durable layer on the steel flat bar. This makes them suitable for industrial applications in harsh environments. 4. Paint Coating: A cost-effective option for protecting steel flat bars, paint coatings come in various colors and finishes. They provide both aesthetic appeal and corrosion protection. 5. Anodized Coating: While commonly used on aluminum, anodizing can also be applied to steel flat bars. This process creates an oxide layer that enhances corrosion resistance and improves the appearance of the steel. 6. Chrome Plating: By depositing a layer of chromium onto the steel flat bar surface, chrome plating offers excellent hardness, wear resistance, and a polished appearance. 7. Phosphate Coating: Often used as a pre-treatment before painting or powder coating, phosphate coatings enhance the adhesion of subsequent coatings and provide additional corrosion resistance. When choosing the appropriate surface coating for steel flat bars, it is important to consider the specific requirements of your application. Factors such as corrosion resistance, durability, aesthetics, and cost should be taken into account to ensure the best choice for your needs.
- Q: What are the fire-resistance properties of steel flat bars?
- Steel flat bars have excellent fire-resistance properties. Due to their high melting point, steel bars can withstand high temperatures without losing their structural integrity. In the event of a fire, steel bars do not burn or contribute to the spread of flames, making them a reliable choice for fire-resistant structures. Additionally, steel bars have low thermal conductivity, meaning they do not easily transfer heat, further enhancing their fire-resistance. Overall, steel flat bars are highly resistant to fire and are widely used in construction projects where fire safety is a priority.
- Q: Can steel flat bars be threaded?
- No, steel flat bars cannot be threaded. Threading is a process of creating helical grooves on the surface of a material to allow for the attachment of fasteners or other components. Steel flat bars, as the name suggests, have a flat surface and lack the necessary features to accommodate threading. However, if there is a need for threaded connections, alternative steel products such as threaded rods or pipes can be used.
- Q: Do steel flat bars have a specific surface finish?
- Yes, steel flat bars can have a specific surface finish. The surface finish of steel flat bars depends on the manufacturing process and the desired final appearance. Some common surface finishes for steel flat bars include mill finish, which is the untreated surface of the steel after it has been hot rolled; hot rolled pickled and oiled (HRPO), where the steel is treated with an acid solution to remove surface impurities and then coated with oil to prevent rusting; cold rolled, which is a smoother and more refined surface finish achieved by rolling the steel at room temperature; and galvanized, where the steel is coated with a layer of zinc to provide protection against corrosion. Additionally, steel flat bars can also undergo further surface treatments such as grinding, polishing, or coating with paint or powder for specific aesthetic or functional purposes.
- Q: Can steel flat bars be used for making brackets or supports?
- Yes, steel flat bars can be used for making brackets or supports. Steel flat bars are known for their strength and durability, making them an excellent choice for creating brackets or supports that need to withstand heavy loads or provide structural stability. The flat shape of the bars also makes them easy to work with and attach to other materials. Additionally, steel flat bars can be easily welded, drilled, or bent to suit specific bracket or support designs. Overall, steel flat bars are a versatile and reliable option for creating brackets or supports in various applications such as construction, manufacturing, or engineering projects.
- Q: How do you prevent discoloration or staining on steel flat bars during fabrication?
- One way to prevent discoloration or staining on steel flat bars during fabrication is by applying a protective coating or finish to the surface. This can be done using methods such as painting, powder coating, or galvanizing. Additionally, proper storage and handling of the steel flat bars, ensuring they are kept dry and protected from moisture, can also help prevent discoloration or staining.
- Q: Can steel flat bars be used for making shelving or storage racks?
- Yes, steel flat bars can be used for making shelving or storage racks. Steel flat bars are strong and durable, making them suitable for supporting heavy loads and providing stability to shelving units or storage racks. They can be easily cut and welded to create custom sizes and shapes, allowing for flexibility in design. Additionally, steel flat bars have a sleek and modern appearance, making them suitable for various types of storage environments such as warehouses, garages, or even homes. Overall, steel flat bars are a reliable and versatile choice for constructing shelving or storage racks.
- Q: Are steel flat bars susceptible to rusting?
- Yes, steel flat bars are susceptible to rusting because they are made primarily of iron, which is prone to oxidation when exposed to moisture and oxygen in the environment.
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Mild Carbon Steel Flat Bar
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT or LC
- Min Order Qty:
- -
- Supply Capability:
- 10000 m.t./month
OKorder Service Pledge
OKorder Financial Service
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