Cold-Rolled C Channel Bar
- Ref Price:
-
- Loading Port:
- Tianjin Port,China
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50MT m.t.
- Supply Capability:
- 1000 tons per month m.t./month
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Specifications of Cold-Rolled C Channel Bar:
1.We supply high quality Cold-Rolled C Channel Bar at reasonable price, including Chinese standard, Japanese standard and so on.
Standard | GB/JIS/EN/ASTM/DIN |
Material Grade | Q235B,Q235,Q345,Q345B,SS400,S235JRG1,A36,ST37-2 |
Technique: | Cold Rolled |
Sizes as per chinese standard: |
80×40×20×2.5 - 180×60×20×2.5
|
Sizes as per Japanese standard: |
180×60×20×3 – 300×80×20×3 |
Length: | 6meter, 9meter, 12meter |
Note: we are also competent to provide our customers other Cold-Rolled C Channel Bar based on other sizes according to customer’s requirements.
2. The detailed sections of Cold-Rolled C Channel Bar as per GB standard.Just as followings in the table-1:
Size | Weight（kg/m） | Size | Weight（kg/m） |
80×40×20×2.5 | 3.925 | 180×60×20×3 | 8.007 |
80×40×20×3 | 4.71 | 180×70×20×2.5 | 7.065 |
100×50×20×2.5 | 4.71 | 180×70×20×3 | 8.478 |
100×50×20×3 | 5.652 | 200×50×20×2.5 | 6.673 |
120×50×20×2.5 | 5.103 | 200×50×20×3 | 8.007 |
120×50×20×3 | 6.123 | 200×60×20×2.5 | 7.065 |
120×60×20×2.5 | 5.495 | 200×60×20×3 | 8.478 |
120×60×20×3 | 6.594 | 200×70×20×2.5 | 7.458 |
120×70×20×2.5 | 5.888 | 200×70×20×3 | 8.949 |
120×70×20×3 | 7.065 | 220×60×20×2.5 | 7.4567 |
140×50×20×2.5 | 5.495 | 220×60×20×3 | 8.949 |
140×50×20×3 | 6.594 | 220×70×20×2.5 | 7.85 |
160×50×20×2.5 | 5.888 | 220×70×20×3 | 9.42 |
160×50×20×3 | 7.065 | 250×75×20×2.5 | 8.634 |
160×60×20×2.5 | 6.28 | 250×75×20×3 | 10.362 |
160×60×20×3 | 7.536 | 280×80×20×2.5 | 9.42 |
160×70×20×2.5 | 6.673 | 280×80×20×3 | 11.304 |
160×70×20×3 | 8.007 | 300×80×20×2.5 | 9.813 |
180×50×20×2.5 | 6.28 | 300×80×20×3 | 11.775 |
180×50×20×3 | 7.536 | ||
180×60×20×2.5 | 6.673 |
Table-1
3. The chemical composition of Cold-Rolled C Channel Bar according to Q235B is shown in Table-2.
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 |
Table-2
Note: we are able to present our customers relevant SGS test report for chemical composition of Cold-Rolled C Channel Bar.
4. The mechanical property of Cold-Rolled C Channel Bar according to Q235B is shown in Table-3-1 and Table-3-2
Alloy No | Grade | Yielding Strength Point(Mpa) | |||
Thickness(mm) | |||||
≦16 | ＞16-40 | ＞40-60 | ＞60-100 | ||
≧ | |||||
Q235 | B | 235 | 225 | 215 | 205 |
Table-3-1
Alloy No | Grade | Tensile Strength(Mpa) | Elongation After Fracture(%) | |||
Thickness(mm) | ||||||
≦16 | ＞16-40 | ＞40-60 | ＞60-100 | |||
≧ | ||||||
G235 | B | 375-500 | 26 | 25 | 24 | 23 |
Table-3-2
Note: we are able to present our customers relevant SGS test report for mechanical property of Cold-Rolled C Channel Bar as customer’s request.
Applications of Cold-Rolled C Channel Bar:
The Cold-Rolled C Channel Bar can be applied to construction of warehouses, workshops, sport stadiums and car parks etc.The hot rolled channel steel belongs to carbon structural steel which is applied to in the field of construction and machinery.In details, the hot rolled channel steel is usually used for arch-itechtural structure, and they could be welded in order to support or hang a vari-ety of facilities. They are also usually used in combination with I beam. Generally,the hot rolled channel steel we supply must possess perfect welding property, riveting property and mechanical property and so on.
Package & Delivery of Cold-Rolled C Channel Bar:
1.The Cold-Rolled C Channel Bar will be packed in bundle with steel wire at each end of every bundle and color marking in order to help the customer to recognize his goods more easily at sight.
2. And the Cold-Rolled C Channel Bar could be loaded into 20ft or 40ft container, or by bulk cargo.If the weight of each bundle reaches more than 3.5 mt, the loading by break bulk cargo should be choosed.When the weight of each bundle reaches less than 3mt, the loading by container should be choosed.
3.As for the transportaion from mill to loading port, the truck will be usually used. And the maximum quantity for each truck is 40mt.
4.All in all, we could do in accordance with customer's request.
Production Flow of Cold-Rolled C Channel Bar:
1.The steel billet shall be heated in the high temperature furnace.
2. The heated steel billet shall be rolled five to nine times with the aim of shaping the general figure of steel u channel.
3. The hot rolled channel steel should be put onto the cooling bed to make the temperature low.
4. The channel steel should be straighted on the straightener.
5. The straighted channel steel will be cut into meters by saw, as per customer's requirements.
- Q:Is channel steel cold rolled or hot rolled?
- According to the theory of steel structure, it should be stressed by the channel plate, that is to say, the channel should stand rather than lie prone.
- Q:Can steel channels be used in telecommunications towers?
- Yes, steel channels can be used in telecommunications towers. Steel channels have a range of applications due to their strength, durability, and versatility. In telecommunications towers, steel channels can be used for structural support, providing stability and load-bearing capacity for the tower. The channels can be fabricated and assembled to form the framework of the tower, allowing for the installation of various equipment such as antennas, transmitters, and receivers. Additionally, the design of steel channels allows for easy integration of cables and wiring, facilitating efficient connectivity throughout the tower. Overall, the use of steel channels in telecommunications towers ensures a sturdy and reliable infrastructure for efficient and effective communication networks.
- Q:Can steel channels be used for raised flooring systems?
- Yes, steel channels can be used for raised flooring systems. Steel channels provide excellent strength, durability, and stability, making them suitable for supporting raised floor panels and accommodating electrical and data cables in commercial and industrial buildings.
- Q:Which kind of wind resistance is better for square tube, square tube or channel steel?
- Why don't you buy square tubes directly? How do you budget?
- Q:What are the different types of bending for steel channels?
- There are several different types of bending methods that can be used for steel channels. These methods include cold bending, hot bending, and press brake bending. 1. Cold Bending: This method involves shaping the steel channel using force without heating it. It is a common method used for bending steel channels, as it is cost-effective and does not require specialized equipment. Cold bending can be done manually using tools such as hammers, pipe benders, or hydraulic benders. It is suitable for smaller and simpler bending projects. 2. Hot Bending: Hot bending involves heating the steel channel to a specific temperature before shaping it. This method is typically used for larger and more complex bending projects, as it allows for more precise and controlled bending. Hot bending is commonly done using induction heating or flame heating techniques. The heated steel channel is then bent using hydraulic or mechanical force. 3. Press Brake Bending: Press brake bending is a method that uses a machine called a press brake to bend steel channels. This method is highly accurate and suitable for large-scale production. The press brake machine consists of a punch and a die that are used to shape the steel channel. The steel channel is placed between the punch and the die, and the press brake applies force to bend it to the desired angle. Overall, the choice of bending method depends on factors such as the complexity of the bending project, the size of the steel channel, and the required precision. Each method has its own advantages and limitations, and it is important to choose the appropriate method based on these factors to ensure the desired outcome.
- Q:Is there anything wrong with weight bearing? The total area of 15 square meters. The attic floor estimate 18MM blockboard, in addition to the requirements of the attic can go up two people outside bearing on it. Don't put articles, is a flat top and a heat insulation function. Can each channel be spaced 70 or 80 centimeters apart? In addition, 10, how much money a channel, the best is 9 meters a price of 6 meters is also ok.
- No channel steelWith 100~120 rectangular square tube or 120 C steel, two channel steel price can buy 3 square tubesThe board specification is 1.2*2.4m, so the steel beam spacing should be 60cm; the bone is 30*50 square tube and the spacing is 60cmThe span of 3.9m, bearing no problem, you can turn a somersault roll, O (a _ U) O~
- Q:How do steel channels contribute to the overall speed of construction?
- There are several ways in which steel channels contribute to the overall speed of construction. To begin with, steel channels are prefabricated components that can be easily manufactured off-site and transported to the construction site. This eliminates the need for on-site fabrication, resulting in a significant reduction in construction time. Furthermore, steel channels possess the qualities of being lightweight yet strong, which makes them easy to handle and install. As a result, construction workers can quickly and efficiently assemble these components, saving both time and labor costs. Additionally, steel channels can be easily connected using various fastening methods such as welding or bolting, further expediting the construction process. Moreover, steel channels offer great flexibility in terms of design and can be easily modified or adjusted during construction. This adaptability allows construction projects to be completed at a faster pace, as changes can be made to the structure without causing significant delays or disruptions. Lastly, steel channels provide structural support and can be utilized in a variety of applications, including framing, bracing, and supporting heavy loads. Due to their high strength-to-weight ratio, they ensure the stability and durability of the construction, enabling faster progress without compromising safety. In summary, the inclusion of steel channels in construction plays a crucial role in speeding up the project by reducing fabrication time, facilitating quick assembly, accommodating design modifications, and offering structural support.
- Q:What are the different methods of waterproofing steel channels?
- There are several different methods of waterproofing steel channels, depending on the specific requirements and conditions. Some of the most common methods include: 1. Coatings: Applying a waterproof coating on the surface of the steel channel is a common method. This can be done using various materials such as epoxy, polyurethane, or rubber-based coatings. These coatings form a protective barrier that prevents water from seeping into the steel and causing corrosion. 2. Sealants: Another effective method is using sealants to fill any gaps or joints in the steel channel. Silicone or polyurethane sealants are commonly used for this purpose. These sealants create a watertight seal that prevents water from entering the channels. 3. Membranes: Waterproofing membranes can be used on steel channels to provide a durable and long-lasting barrier against water. Membranes can be applied in different forms, such as liquid, sheet, or spray-applied membranes. These membranes adhere to the steel surface and create a waterproof layer. 4. Grouting: Injecting grout into the gaps and voids in the steel channels can help to seal them and prevent water infiltration. Cementitious grouts or epoxy-based grouts are commonly used for this method. Grouting helps to fill any cracks or openings in the steel channels, making them waterproof. 5. Cathodic protection: In cases where the steel channels are exposed to corrosive environments, cathodic protection can be used to prevent corrosion and subsequent water infiltration. This method involves creating an electrical current that counteracts the corrosion process and protects the steel from water damage. 6. Insulation: Insulating the steel channels can also contribute to waterproofing. Insulation helps to regulate the temperature of the channels, minimizing the risk of condensation and water accumulation. This method is particularly useful in areas where temperature fluctuations are significant. It is important to consider the specific requirements, budget, and environmental conditions when selecting the appropriate method of waterproofing for steel channels. Consulting with a professional or utilizing the expertise of a waterproofing specialist is recommended to ensure the most suitable method is chosen for the given application.
- Q:How do steel channels contribute to the overall durability of a building?
- Steel channels contribute to the overall durability of a building in several ways. Firstly, steel channels are known for their high strength and rigidity. They are typically made from structural steel, which has excellent load-bearing capabilities. This means that when steel channels are used in the construction of a building, they provide strong support and resistance to heavy loads, preventing structural failure and ensuring the longevity of the building. Secondly, steel channels offer exceptional resistance to corrosion and rust. Unlike other building materials like wood or concrete, steel does not deteriorate or decay over time when exposed to moisture or harsh weather conditions. This resistance to corrosion ensures that the structural integrity of the building remains intact, even in challenging environments or coastal areas. Additionally, the use of steel channels allows for greater design flexibility and versatility in construction. Steel channels can be easily cut, shaped, and welded, allowing architects and engineers to create complex building structures with precision. The ability to customize steel channels to fit specific project requirements enhances the overall durability of the building and ensures a tighter and more secure fit. Moreover, steel channels have excellent fire resistance properties. They are non-combustible and do not contribute to the spread of flames in case of a fire. This is particularly important in high-rise buildings or structures where fire safety is a critical concern. The inclusion of steel channels in the building's construction significantly reduces the risk of structural collapse during a fire, enhancing the overall safety and durability of the building. Lastly, steel channels have a long lifespan, requiring minimal maintenance over the years. Due to their inherent strength and resistance to deterioration, steel channels can withstand the test of time without the need for frequent repairs or replacements. This not only reduces the long-term costs associated with building maintenance but also ensures the building's durability over many decades. In conclusion, steel channels contribute to the overall durability of a building by providing robust structural support, resistance to corrosion and rust, design flexibility, fire resistance, and long-term reliability. Their inclusion in construction projects enhances the strength, safety, and longevity of the building, making them an essential component in ensuring the overall durability of modern structures.
- Q:What are the factors to consider when determining the appropriate height of a steel channel?
- When determining the appropriate height of a steel channel, several factors need to be considered. These factors include the load-bearing capacity required, the span or distance between supports, the type of loads that will be applied (static or dynamic), the desired deflection limits, and the available materials and manufacturing capabilities. Additionally, factors such as cost, aesthetics, and compatibility with existing structures or systems may also influence the decision-making process. Overall, a comprehensive analysis of these factors is essential to ensure the appropriate height of a steel channel is chosen for a given application.
1. Manufacturer Overview |
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| Location | Tianjin, China |
| Year Established | 2007 |
| Annual Output Value | Above US$ 15 Million |
| Main Markets | Southeast Asia; Africa |
| Company Certifications | |
2. Manufacturer Certificates |
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| a) Certification Name | |
| Range | |
| Reference | |
| Validity Period | |
3. Manufacturer Capability |
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| a)Trade Capacity | |
| Nearest Port | Tianjin |
| Export Percentage | 15%-20% |
| No.of Employees in Trade Department | 11-20 People |
| Language Spoken: | English; Chinese; |
| b)Factory Information | |
| Factory Size: | Above 6,500 square meters |
| No. of Production Lines | 1 |
| Contract Manufacturing | OEM service offered |
| Product Price Range | average |
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Cold-Rolled C Channel Bar
- Ref Price:
-
- Loading Port:
- Tianjin Port,China
- Payment Terms:
- TT or LC
- Min Order Qty:
- 50MT m.t.
- Supply Capability:
- 1000 tons per month m.t./month
OKorder Service Pledge
OKorder Financial Service
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