• Cold-Rolled C Bar System 1
  • Cold-Rolled C Bar System 2
  • Cold-Rolled C Bar System 3
Cold-Rolled C Bar

Cold-Rolled C Bar

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Loading Port:
Tianjin Port,China
Payment Terms:
TT or LC
Min Order Qty:
20Tons m.t.
Supply Capability:
1000 tons per month m.t./month

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 Specifications of Cold-Rolled C Bar:

1. We are definitely speciallizing in manufacturing and supplying channel steel as per japanese standard, which is characterised with high mechanical strength and competitive prices.

 

2. The sections in details are 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 mechanical property of Cold-Rolled C Bar in the table-2:

Grade

Yield Strength,N/mm²

Extension Strength N/mm²

Thickness of Steel,mm

≦16

>16-≦40

>40-≦100

>100

SS330

≧205

≧195

≧175

≧165

330-430

SS400

≧245

≧235

≧215

≧205

400-510

SS490

≧285

≧275

≧255

≧245

490-610

SS540

≧400

≧390

-

-

≧540

                   Table-2

 

4. The chemical composition of Cold-Rolled C Bar in the table-3

Grade

Element(%)

C

Mn

P

S

SS330

--

--

≦0.050

≦0.050

SS400

SS490

SS540

≦0.30

≦1.60

≦0.040

≦0.040

                    Table-3

 

 

Usage of Cold-Rolled C Bar:

1.The Cold-Rolled C Bar can be devided into two kinds, namely common channel steel and light channel steel. The sizes of CR rolled common channel steel range from 5# to 40#. Meanwhile, the channel steel can be divided into cold forming sectional equal channel steel, cold forming sectional unequal channel steel, cold forming inner edge channel steel and outer edge channel steel.

2.The Cold-Rolled C Bar 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. The channel steel with sizes under 14# is usually applied to construction engineering, as purline, while the channel steel with sizes above 16# is more likely to be used in building vehicle chassis structure and mechanical structure. Furthermore, the channel steel in sizes above 30# are target at building bridge structure, as tension bar.

3.In a word, the channel steel must possess perfect welding property, riveting property and mechanical property and so on.

 

 

Package & Delivery of Cold-Rolled C Bar:

1.The Cold-Rolled C 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 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 Bar

 

Production Flow of Cold-Rolled C 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 rolled steel channel should be put onto the cooling bed to make the temperature low.

4. The Cold-Rolled C Bar should be straighted on the straightener.

5. The straighted steel u channel will be cut into meters by saw, as per customer's requirements.

6. At the last part of production, the channel steel must be tested in order to confirm that the finished products are completely free from crack, pore, slag, scab or fold on the surface.

 Cold-Rolled C Bar

 

Q:What are the advantages of using steel channels?
Using steel channels in different construction and structural applications offers several advantages. First and foremost, steel channels are renowned for their exceptional strength and durability. They have the ability to withstand heavy loads and provide structural stability, making them ideal for supporting beams, columns, and other load-bearing elements in buildings and bridges. Another advantage of steel channels lies in their versatility. They are available in various sizes and shapes, allowing for flexibility in design and construction. Steel channels can be easily cut, welded, and manipulated to fit specific requirements, making them the preferred choice for customized structures. Furthermore, steel channels offer outstanding fire resistance. Being a non-combustible material, steel does not contribute to the spread of fire, thus ensuring increased safety in buildings. Moreover, steel channels are resistant to corrosion, rust, and decay, making them suitable for both indoor and outdoor applications. This resistance to environmental factors guarantees the longevity and low maintenance of structures utilizing steel channels. Moreover, steel channels prove to be cost-effective in the long run. Although the initial investment may be higher compared to other materials, their durability and low maintenance requirements result in reduced repair and replacement costs over time. Additionally, steel is a recyclable material, making it an environmentally friendly choice. Lastly, steel channels possess a high aesthetic appeal. The sleek and modern appearance of steel can enhance the visual appeal of structures, making it the preferred choice for architects and designers. In conclusion, the utilization of steel channels offers numerous advantages, including strength, versatility, fire resistance, corrosion resistance, cost-effectiveness, and aesthetic appeal. These factors contribute to the popularity of steel channels in various construction and structural applications.
Q:What are the guidelines for steel channel installation in corrosive environments?
To ensure the longevity and effectiveness of steel channels in corrosive environments, it is crucial to adhere to several essential guidelines: 1. Material selection: Opt for a steel material specifically engineered to withstand corrosive environments. Stainless steel is often an ideal choice due to its high corrosion resistance. Additionally, carefully consider the grade of stainless steel that best suits the specific corrosive substances present in the environment. 2. Surface preparation: Thoroughly prepare the surface of the steel channels before installation. This entails removing any existing rust or corrosion, meticulously cleaning the surface, and applying a protective coating or treatment to enhance corrosion resistance. 3. Protective coatings: Apply appropriate protective coatings to the steel channels to prevent corrosion. This may involve using paints, epoxy coatings, or galvanizing. Ensure that the chosen coating is compatible with the corrosive environment and offers long-term protection. 4. Proper drainage: Design the installation in a manner that facilitates proper drainage of any corrosive substances that may come into contact with the steel channels. This helps minimize the accumulation of corrosive agents and reduces the risk of corrosion. 5. Avoid contact with dissimilar metals: Steer clear of direct contact between the steel channels and dissimilar metals, as this can trigger galvanic corrosion. If contact cannot be avoided, employ suitable insulating materials or coatings to separate the metals and prevent galvanic corrosion. 6. Regular maintenance: Conduct regular inspections and maintenance on the steel channels to identify any signs of corrosion or damage. Promptly address any issues to prevent further deterioration and ensure the continued effectiveness of the installation. 7. Follow industry standards and recommendations: Familiarize yourself with pertinent industry standards, guidelines, and recommendations for installing steel channels in corrosive environments. These resources provide valuable insights into best practices and ensure compliance with safety and performance requirements. It is crucial to seek guidance from corrosion control specialists or engineers who specialize in this field. Their expertise will ensure that the guidelines are tailored to the specific corrosive environment and intended application of the steel channels.
Q:How do steel channels contribute to rainwater harvesting in construction?
Steel channels play a crucial role in rainwater harvesting in construction projects. They are specifically designed to collect and channel rainwater from rooftops and other surfaces into storage tanks or reservoirs. The primary function of steel channels is to provide a pathway for rainwater to flow from the collection surface to the storage system. These channels are typically installed along the edges of roofs or on the ground, ensuring that water is efficiently guided towards the desired collection points. Moreover, steel channels are highly durable and resistant to corrosion, making them ideal for outdoor applications where they are exposed to rain, sunlight, and other weather elements. This durability ensures that the channels remain effective in transporting rainwater for an extended period of time, minimizing the need for maintenance or replacement. In addition to their functional benefits, steel channels also offer flexibility in design and installation. They can be customized to suit the specific requirements of the construction project, allowing for efficient water collection from various surfaces and directing it to the desired storage location. The installation process is relatively straightforward and can be easily integrated into the overall construction plan. By efficiently collecting rainwater and directing it to storage systems, steel channels contribute to rainwater harvesting in construction by helping to conserve water resources. This sustainable practice reduces the reliance on mains water supply, especially during periods of drought or water scarcity. Additionally, rainwater can be used for various purposes, such as irrigation, toilet flushing, and other non-potable applications, thus reducing the demand for treated water. Overall, the inclusion of steel channels in construction projects facilitates effective rainwater harvesting, promoting water conservation and sustainability.
Q:How about the moment of inertia of two back to back channels? There is no formula,,,,.
This is not a specific formula, but generally in the mechanics of materials and engineering manual has a numerical physical quantity and the corresponding specific channel types, usually in combination just do a simple superposition or projections, specific to see you is the moment of inertia of the shaft on which. I hope it works for you
Q:Can steel channels be used in seismic applications?
Yes, steel channels can be used in seismic applications. Steel channels are often used to provide structural support and stability in buildings and structures during seismic events. They are designed to withstand the forces generated by earthquakes and can help to distribute and dissipate the energy that is produced. Additionally, steel channels offer high strength and ductility, making them suitable for seismic applications where flexibility and resilience are required.
Q:Many of the equipment in the substation is installed on the support of the channel, why not directly mounted on the support plate. Why should we add channel steel to the top plate?What effect can this channel play?
The bottom of the switch cabinet is easy to screw with the base steel parts, and the grounding is good;
Q:Are steel channels suitable for use in the construction of conveyor systems?
Yes, steel channels are suitable for use in the construction of conveyor systems. They are durable, strong, and provide excellent support for conveying materials. Steel channels can handle heavy loads, offer stability, and are resistant to wear and tear, making them an ideal choice for conveyor systems in various industrial applications.
Q:Why did the channel steel start from the 4 floor?
Note: all cantilever channel wall must be done when the box, to prevent future channel can not be removed. There are cantilevered outer shelf, buried channel layer, for the cantilever channel construction, all the balcony on the side of the reserved steel bar, the latter two times pouring concrete. The other floors, outdoor lifts, discharging platforms and tower crane delivery platforms meet the same way on the top side of the balcony.
Q:How do steel channels contribute to structural stability?
The contribution of steel channels to structural stability is multifaceted. Primarily, they provide additional strength and support to the structure. The unique shape of steel channels, characterized by a wide base and narrow top, enables them to bear heavy loads and withstand bending or twisting forces. Consequently, they are highly suitable for incorporation into beams, columns, and other structural elements. Furthermore, steel channels can serve as reinforcement within concrete structures. When integrated into concrete, they enhance the overall strength and durability of the structure. The utilization of steel channels aids in distributing the load across a larger surface area, thereby diminishing stress concentrations and averting localized failures. Additionally, steel channels have the capacity to interconnect, forming a framework that heightens the rigidity of the structure. By establishing an interconnected network of steel channels, a system capable of resisting lateral forces such as wind or earthquakes is created. This fortifies the stability of the structure and safeguards it against collapse or damage during extreme events. Moreover, steel channels possess exceptional resistance to corrosion, a pivotal characteristic for ensuring long-term structural stability. Unlike other materials, steel channels do not easily deteriorate when exposed to moisture, chemicals, or extreme temperatures. This durability ensures the integrity of the building remains intact throughout its lifespan. In conclusion, steel channels play an indispensable role in augmenting the structural stability of buildings and other structures. Their strength, versatility, ability to reinforce concrete, and resistance to corrosion render them an essential component in the realm of construction.
Q:What are the common lengths of steel channels?
The common lengths of steel channels vary, but they are typically available in standard lengths of 20 feet or 6 meters.
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

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