Cold-Rolled C Channel Bar

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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(%)
Alloy No	Grade	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.

Cold-Rolled C Channel Bar

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.

Cold-Rolled C Channel Bar

Q:What are the different load distribution methods for steel channels in bridges?: Steel channels in bridges commonly use several load distribution methods in engineering design to effectively distribute loads and stresses, ensuring structural integrity and safety. One simple method is the Equal Distribution Method, where the load is evenly distributed among all steel channels, resulting in uniform stress distribution. An alternative method is the Elastic Load Distribution Method, which distributes the load based on the elastic properties of the channels. Factors such as moment of inertia and modulus of elasticity determine the proportion of load each channel carries, favoring those with higher stiffness. The Influence Line Method is a graphical technique that analyzes the effects of a moving load on the bridge structure. By plotting the influence lines for different load positions, engineers can identify channels experiencing the highest stresses and adjust the load distribution accordingly. For more complex structures like bridges, Finite Element Analysis (FEA) is a numerical method that accurately simulates behaviors under different loading conditions. By considering factors such as geometry, material properties, and boundary conditions, FEA allows for precise load distribution calculations. Many countries have specific design codes and standards that provide guidelines for load distribution in bridge design. These codes consider factors like bridge type, span length, traffic loads, and environmental conditions, ensuring load distribution methods meet safety requirements. It is crucial to note that selecting the appropriate load distribution method depends on factors such as bridge design, expected loads, and desired safety level. Engineers must carefully consider these factors and use suitable methods to ensure optimal load distribution and structural performance in steel channel bridges.

Q:Do steel channels have any specific thermal conductivity properties?: Yes, steel channels do have specific thermal conductivity properties. Thermal conductivity refers to the ability of a material to conduct heat. Steel, being a good conductor of heat, has a relatively high thermal conductivity compared to other materials. This means that steel channels can efficiently transfer heat from one area to another. Consequently, steel channels are often used in applications where heat transfer is important, such as in the construction of HVAC systems, heat exchangers, and industrial machinery. Additionally, the specific thermal conductivity properties of steel channels can be influenced by factors such as the alloy composition, surface finish, and temperature.

Q:Do steel channels have any specific vibration damping properties?: Although steel channels possess certain inherent vibration damping properties, their effectiveness may not be on par with materials designed specifically for vibration damping. Due to their solid and rigid structure, steel channels are capable of absorbing and dissipating vibration energy to some extent. This is due to the relatively high density of steel, which enables it to absorb and distribute vibration energy more efficiently than lighter materials. Moreover, the shape and geometry of steel channels also contribute to their vibration damping properties. The design of the channel, including its cross-sectional shape and dimensions, can impact its ability to dampen vibrations. However, it is important to acknowledge that when it comes to vibration damping, steel channels may not be as efficient as materials engineered specifically for this purpose, such as elastomers or composite materials. These materials possess properties that are tailored specifically to dissipate vibrations, offering superior damping characteristics compared to steel channels. Consequently, while steel channels do possess inherent vibration damping properties, they may not be the most optimal choice for applications that require significant vibration damping.

Q:Can steel channels be used for access platforms?: Yes, steel channels can be used for access platforms. Steel channels are commonly used in construction and industrial applications due to their strength and durability. They can provide a sturdy framework for access platforms, ensuring safe and reliable access to elevated areas.

Q:Are steel channels suitable for historical restoration projects?: Depending on the project's requirements and objectives, steel channels may indeed be appropriate for historical restoration projects. They possess various advantages that contribute to their popularity in such endeavors. To begin with, steel channels are renowned for their strength and durability. When the original materials of historical buildings have weakened or deteriorated, they can provide structural support and stability. By reinforcing weakened walls, floors, or ceilings, steel channels guarantee the safety and longevity of the restored structure. Furthermore, steel channels can be tailored to mimic the original design and aesthetics of the historical building. They can be shaped and fabricated to replicate decorative moldings or ornamental elements, seamlessly integrating the modern material with the historical structure while preserving its authenticity. In addition, steel channels offer versatility in terms of size and shape, making them suitable for a wide array of restoration projects. They can replace or repair damaged structural elements like beams or columns. Moreover, steel channels can be utilized to create new additions or extensions to historical buildings, maintaining a harmonious balance between the old and the new. Nonetheless, it is crucial to consider the specific guidelines and regulations established by historical preservation organizations or authorities when employing steel channels in restoration projects. These guidelines may stipulate the use of specific materials or techniques to ensure the preservation of historical authenticity. Consequently, consulting with experts in historical restoration and obtaining necessary approvals before incorporating steel channels into a project is essential. To conclude, steel channels possess the qualities of durability, flexibility, and the ability to replicate original designs, making them a fitting choice for historical restoration projects. However, it is vital to give proper consideration to historical preservation guidelines in order to uphold the integrity and authenticity of the restored structure.

Q:What are the different types of accessories available for steel channels?: Steel channels have a variety of accessories that serve specific purposes and enhance their functionality. Some common accessories include: 1. Brackets: Used for additional support, especially when the channels are installed vertically or at an angle. Brackets maintain structural integrity and prevent sagging or bending. 2. End Caps: Cover the ends of channels for a clean and finished appearance. They also protect the edges from corrosion, moisture, and external elements. 3. Connectors: Join two or more channels together. Available in different shapes and sizes, such as straight, angle, and T-connectors, made of metal for a strong connection. 4. Mounting Hardware: Includes screws, bolts, and nuts to securely fasten channels to surfaces or structures, ensuring they can withstand intended loads. 5. Sliding Trolleys: Used when channels need to support movable loads or equipment. Allows smooth and easy movement along the channels for flexibility and convenience. 6. Cable Management Accessories: Facilitate cable management within channels. Examples include cable clamps, ties, trays, and routing fittings. Organize and secure cables for an efficient system. 7. Hangers and Supports: Used to suspend or hang channels from ceilings, walls, or other structures. Provide stability, especially for heavy loads. 8. Protective Coatings: Not accessories per se, but essential for enhancing durability and resistance to corrosion. Galvanization or powder coating protects against rust, moisture, and environmental factors. These are just a few examples of the accessories available for steel channels. Depending on specific applications, there may be additional accessories or variations to optimize performance and functionality.

Q:What are the different shapes of steel channels available?: Some of the different shapes of steel channels available include C channels, U channels, and MC channels.

Q:Are steel channels recyclable?: Yes, steel channels are recyclable. Steel is one of the most recycled materials in the world, and steel channels can be melted down and reused to create new steel products.

Q:What are the specifications for steel channels?: The specifications for steel channels typically include dimensions such as height, width, and thickness, as well as the length of the channel. Other specifications may include the type of steel used, the weight per unit length, and any additional features or special coatings required.

Q:How do steel channels perform in high-vibration areas?: Steel channels perform well in high-vibration areas due to their inherent strength, rigidity, and ability to dissipate vibrations. The structural integrity of steel channels helps absorb and distribute vibrations, minimizing potential damage or distortion. Additionally, their durability and resistance to fatigue make them suitable for withstanding prolonged exposure to vibrations without compromising their performance.

JANG is a professional company specilized in cold bend angle, cold bend U channel and other cold formed sectional steel. Since the established of our company, we aimed to provide the customers qualified product with good price and convenient service.

1. Manufacturer Overview
Location	Tianjin, China
Year Established	2007
Annual Output Value	Above US$ 15 Million
Main Markets	Southeast Asia; Africa
Company Certifications

2. Manufacturer Certificates
a) Certification Name
Range
Reference
Validity Period

3. Manufacturer Capability
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