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: What type of channel is used for the type of room with a span of 4 meters?
- I-beam, also called steel girder, is a long strip steel with cross section. The specifications are expressed by the height of the waist (H) * leg width (b) * waist thickness (d), such as "work 160*88*6", which means that the waist height is 160 mm, the width of the leg is 88 mm, and the thickness of the waist is 6 mm. The specifications of I-beam can also be expressed by type. The model indicates the height of centimeters, such as 16#. The same height of the I-beam, if there are several different leg width and waist thickness, should be added on the right side of the model a, B, C to distinguish, such as 32a#, 32b#, 32c# and so on. The I-beam is made of ordinary I-beam and light I-beam, and the specification for hot-rolled ordinary I-beam is 10-63#. Standard Specification for hot-rolled ordinary I-beam supplied by supply and demand agreement is 12-55#. I-beam is widely used in various building structures, bridges, vehicles, supports, machinery and so on.
- Q: Can steel channels be used in residential construction?
- Indeed, residential construction can incorporate steel channels. These steel channels, which possess a C-shaped cross-section, serve as structural supports made of steel. In the realm of building construction, they are widely utilized for the purpose of providing stability and support to diverse elements like walls, floors, and roofs. The utilization of steel channels in residential construction yields numerous benefits, including their exceptional strength-to-weight ratio, durability, and resistance to fire, rot, and pests. Moreover, they exhibit versatility and find usefulness in a range of applications such as framing, wall studs, and roof trusses. Furthermore, the adaptability of steel channels allows for easy customization and cutting to specific lengths, rendering them suitable for various building designs and requirements.
- Q: How do steel channels contribute to fire resistance in buildings?
- There are several ways in which steel channels contribute to fire resistance in buildings. To begin with, steel channels are commonly utilized as structural components in building construction. They serve as beams, columns, or joists, offering support and stability to the overall structure. In the event of a fire, these steel channels play a crucial role in maintaining the building's integrity. Steel has a high melting point and retains its strength at high temperatures, thus preventing the building from collapsing during a fire. This structural stability allows occupants to evacuate safely and provides firefighters with a safer environment to combat the fire. Additionally, steel channels can serve as fire barriers or fireproofing materials. They can be installed to enclose or protect vulnerable areas like electrical conduits, pipes, or ventilation systems, which are prone to heat transfer and can contribute to the spread of fire. By enclosing these elements with steel channels, the risk of fire propagation is minimized. Steel channels can also be utilized to create fire-resistant compartments or fire-rated walls, restricting the spread of fire to specific areas and enabling occupants to evacuate safely. Furthermore, steel channels can be combined with other fire-resistant materials to enhance their effectiveness. For example, they can be filled with fire-resistant insulation materials such as mineral wool or vermiculite, providing additional thermal protection. This insulation helps reduce heat transfer and delays the temperature rise on the unexposed side of the steel channel, thus increasing the fire resistance of the building. In conclusion, steel channels play a crucial role in ensuring fire resistance in buildings. Their structural integrity and ability to withstand high temperatures prevent building collapse during fires, allowing occupants valuable time to evacuate. Moreover, steel channels can function as fire barriers, enclosing vulnerable elements and limiting the spread of fire. By combining steel channels with fire-resistant insulation, their fire resistance effectiveness is further enhanced, making them an essential component in building design and construction.
- Q: How much is the load-bearing capacity of No. 10 I-beam per metre?
- National Standard No. 10 I-beam is 11.261kg/ meters; 6 meters long weight is 67.566kg
- Q: What are the different types of welding for steel channels?
- There are several different types of welding processes that can be used for steel channels, depending on the specific application and requirements. Some of the most common types of welding for steel channels include: 1. Shielded Metal Arc Welding (SMAW): Also known as stick welding, SMAW is a versatile and widely used welding process. It involves the use of a flux-coated electrode that melts and forms a weld when it comes into contact with the steel channel. SMAW is suitable for welding steel channels of various thicknesses and can be used in both indoor and outdoor settings. 2. Gas Metal Arc Welding (GMAW): Commonly referred to as MIG (Metal Inert Gas) welding, GMAW utilizes a continuous wire electrode that is fed through a welding gun. The wire electrode melts and fuses with the steel channel as an inert gas shield is applied to protect the weld from atmospheric contamination. GMAW is known for its speed and ease of use, making it a popular choice for welding steel channels in production environments. 3. Flux-Cored Arc Welding (FCAW): Similar to GMAW, FCAW also uses a continuous wire electrode. However, instead of using an inert gas shield, FCAW employs a flux-filled wire that creates its own shielding gas when heated. This process is particularly useful for welding steel channels in outdoor or windy conditions, as the flux provides better protection against atmospheric contamination. 4. Gas Tungsten Arc Welding (GTAW): Also known as TIG (Tungsten Inert Gas) welding, GTAW uses a non-consumable tungsten electrode and an inert gas shield to create a high-quality weld. This process offers precise control over the welding parameters and is commonly used for thin sections of steel channels or when aesthetics and precision are crucial. 5. Submerged Arc Welding (SAW): SAW is a welding process that involves the use of a continuous wire electrode and a granular flux that is fed onto the welding area. The flux covers the weld, preventing atmospheric contamination and creating a protective blanket. SAW is often used for welding thicker steel channels or in automated welding applications. These are just a few of the different types of welding processes that can be used for steel channels. The choice of welding method depends on factors such as the thickness of the steel, the desired strength and appearance of the weld, and the specific application requirements. It is important to consult with a qualified welding professional to determine the most suitable welding process for your steel channel project.
- Q: Are steel channels suitable for use in the construction of scaffolding systems?
- Indeed, steel channels prove to be a fitting option for the construction of scaffolding systems. Recognized for their robustness and endurance, steel channels are an excellent choice for upholding substantial loads within scaffolding structures. They are frequently employed as either horizontal or vertical beams, providing the scaffolding system with both stability and support. Furthermore, steel channels exhibit exceptional resistance to corrosion, a crucial attribute for outdoor construction sites where scaffolding may be exposed to diverse weather conditions. Moreover, steel channels can be easily fabricated and assembled, permitting flexibility and customization when designing scaffolding systems to meet specific construction requirements. Ultimately, steel channels offer the indispensable strength, durability, and adaptability necessary for scaffolding systems, rendering them a fitting selection for construction projects.
- Q: What are the different types of steel channel profiles?
- There are several different types of steel channel profiles, each designed for specific applications and structural needs. Some of the commonly used types include: 1. C Channel: This is a popular type of steel channel profile that has a C-shaped cross-section. It is often used in construction and engineering projects as a structural support or as a frame for various applications. 2. U Channel: Also known as a U-shaped channel, this type has a similar cross-section to the letter "U". It is commonly used in construction, manufacturing, and automotive industries for applications such as framing, bracing, and support. 3. Hat Channel: Hat channels have a distinctive hat-like shape, with a flat bottom and two vertical sides. They are often used in construction for applications such as ceiling and wall framing, as well as in the automotive industry for reinforcing structural components. 4. Box Channel: As the name suggests, box channels have a rectangular or square cross-section. They are frequently used in construction, manufacturing, and engineering projects where strength and rigidity are required. 5. Z Channel: Z channels have a Z-shaped cross-section, with two flanges on opposite sides and a center web connecting them. They are commonly used in construction for applications such as framing, support, and bracing, especially in roofing and cladding systems. 6. Lipped Channel: Lipped channels, also known as lip channels or lip sections, have an additional lip or flange along one side of the channel. This lip provides extra strength and rigidity, making it suitable for applications such as shelving, racking, and structural support. These are just a few examples of the different types of steel channel profiles available. The choice of profile depends on the specific requirements of the project, including load-bearing capacity, structural stability, and overall design considerations.
- Q: What are the different load distribution methods for steel channels in bridges?
- There are several different load distribution methods for steel channels in bridges that are commonly used in engineering design. These methods help distribute the loads and stresses effectively to ensure the structural integrity and safety of the bridge. 1. Equal Distribution Method: This is the simplest load distribution method where the load is distributed equally among all the steel channels in the bridge. Each channel carries an equal share of the load, resulting in uniform stress distribution. 2. Elastic Load Distribution Method: In this method, the load is distributed based on the elastic properties of the steel channels. The load is distributed in proportion to the stiffness of each channel, considering factors such as the moment of inertia and modulus of elasticity. This method ensures that the channels with higher stiffness carry a larger portion of the load. 3. Influence Line Method: The influence line method is a graphical technique used to determine the distribution of loads on steel channels. It involves analyzing the effects of a moving load on the bridge structure. By plotting the influence lines for different positions of the load, engineers can identify the channels that experience the highest stresses and adjust the load distribution accordingly. 4. Finite Element Analysis (FEA): FEA is a numerical method used to analyze complex structures, including bridges. By dividing the bridge into small elements and solving the governing equations, FEA can simulate the behavior of the structure under different loading conditions. This method allows for accurate load distribution calculations by considering various factors like the geometry, material properties, and boundary conditions of the bridge. 5. Design Codes and Standards: Many countries have specific design codes and standards that provide guidelines for load distribution in bridge design. These codes take into account factors such as the type of bridge, span length, traffic loads, and environmental conditions. By following these codes, engineers can ensure that the load distribution methods used in steel channel bridges meet the safety requirements. It is important to note that the selection of the appropriate load distribution method depends on various factors, including the bridge's design, expected loads, and the desired level of safety. Engineers must carefully consider these factors and use appropriate methods to ensure optimal load distribution and structural performance of steel channel bridges.
- Q: Can steel channels be used for overhead door framing?
- Yes, steel channels can be used for overhead door framing. Steel channels are commonly used in construction for structural support and framing. They are strong and durable, making them suitable for supporting the weight of an overhead door. Steel channels can be easily fabricated and installed to create a sturdy frame for the door. Additionally, steel channels provide stability and ensure proper alignment of the door, making them a popular choice for overhead door framing.
- Q: Are steel channels suitable for swimming pool installations?
- No, steel channels are not suitable for swimming pool installations as they are prone to rust and corrosion when exposed to water and chemicals.
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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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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