• Jis Channel System 1
  • Jis Channel System 2
  • Jis Channel System 3
Jis Channel

Jis Channel

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Loading Port:
Xingang Port
Payment Terms:
TT or LC
Min Order Qty:
25 m.t.
Supply Capability:
80000-100000MTS/YEAR m.t./month

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Specifications of JIS Channel:

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

 

JIS CHANNEL

Standard

h

Sectional

b

Dimension

s

t

Mass:

 Kg/m

 

(mm)

(mm)

(mm)

(mm)

 

50x25

50

25

3.0

6.00

2.37

75X40

75

40

3.8

7.00

5.30

75X40

75

40

4.0

7.00

5.60

75X40

75

40

4.5

7.00

5.85

75X40

75

40

5.0

7.00

6.92

 

 

 

 

 

 

100X50

100

50

3.8

6.00

7.30

100X50

100

50

4.2

6.00

8.03

100X50

100

50

4.5

7.50

8.97

100X50

100

50

5.0

7.50

9.36

 

 

 

 

 

 

125X65

125

65

5.2

6.80

11.66

125X65

125

65

5.3

6.80

12.17

125X65

125

65

5.5

8.00

12.91

125X65

125

65

6.0

8.00

13.40

 

 

 

 

 

 

150x75

150

75

5.5

7.30

14.66

150x75

150

75

5.7

10.00

16.71

150x75

150

75

6.0

10.00

17.90

150x75

150

75

6.5

10.00

18.60

150x75

150

75

6.5

10.00

24.00

 

 

 

 

 

 

200X80

200

80

7.5

11.00

24.60

Table-1

 

 

3. The mechanical property of JIS Channel 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 JIS Channel 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 JIS Channel:

1.The JIS channel can be devided into two kinds, namely common channel steel and light channel steel. The sizes of hot 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 JIS channel  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 JIS Channel:

1.The JIS channel 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 JIS channel 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.

 

 JIS Channel  

 

Production Flow of JIS Channel:

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 JIS Channel 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.

  Flow of JIS Channel

 

 

 

 

Q: What are the different methods for designing steel channels for high wind loads?
There exists a variety of approaches for creating steel channels that can withstand strong winds. Some commonly utilized methods include: 1. Load and Resistance Factor Design (LRFD): By employing load and resistance factors, LRFD determines the necessary strength of steel channels. Wind speeds and building dimensions are used to calculate the loads, while resistance factors are based on material properties and safety considerations. 2. Allowable Stress Design (ASD): This method converts wind loads into equivalent static loads and compares them to the allowable stresses of steel channels. Factors such as material properties, safety considerations, and load combinations are taken into account when determining the allowable stresses. 3. Wind Tunnel Testing: Engineers construct a scaled-down model of the building and subject it to simulated wind conditions during wind tunnel testing. This enables the analysis of airflow patterns and measurement of forces acting on the steel channels. The data obtained from wind tunnel testing can then be used to refine the design and optimize the dimensions of the steel channels. 4. Finite Element Analysis (FEA): FEA is a numerical method that allows engineers to simulate the behavior of steel channels under various wind loads. By dividing the structure into small elements and applying appropriate boundary conditions, FEA accurately calculates stresses, deformations, and displacements in the steel channels. This enables engineers to optimize the design and identify areas of high stress concentration that may require reinforcement. 5. Prescriptive Design Codes: Numerous countries have specific design codes and standards that provide guidelines for designing steel channels to withstand high wind loads. These codes outline minimum requirements for channel dimensions, material properties, connections, and fasteners. By adhering to these codes, the steel channels can be designed to withstand expected wind loads. It should be noted that the choice of design method may vary based on factors such as the complexity of the structure, available resources, and project-specific requirements. Consulting with a structural engineer experienced in designing for high wind loads is recommended to ensure a safe and efficient design.
Q: What are the different methods of surface finishing for steel channels?
There are several methods of surface finishing for steel channels, including painting, powder coating, galvanizing, and electroplating. Painting involves applying a coat of paint to the surface, providing protection and aesthetic appeal. Powder coating is a process where a dry powder is applied electrostatically and then cured under heat, creating a durable and attractive finish. Galvanizing involves applying a layer of zinc to the steel through a hot-dip process, providing corrosion resistance. Electroplating is a technique where a thin layer of metal, such as chrome or nickel, is deposited onto the steel surface using an electric current, enhancing its appearance and durability.
Q: How long do steel channels typically last?
Steel channels typically have a long lifespan and can last for several decades, depending on various factors such as the quality of the steel, the environmental conditions it is exposed to, and the level of maintenance and care it receives. In general, steel channels are known for their durability and resistance to corrosion, making them highly suitable for a wide range of applications in construction and industrial settings. With proper installation and regular inspections, steel channels can easily last 30 to 50 years or even longer. However, it is important to note that factors such as exposure to harsh chemicals, extreme temperatures, and heavy loads can affect the lifespan of steel channels. Therefore, it is crucial to follow recommended maintenance practices and ensure proper protection to maximize their longevity.
Q: Does anyone know how to calculate the volume of channel steel?!
Theoretical calculations can be used: sectional area * length. There are sectional sizes in the specifications of channel steel labels. The sectional area and volume shall be calculated first. When measuring the sectional area, the grid paper can be used. Of course, the accuracy is limited.
Q: Are steel channels suitable for use in telecommunications towers?
Yes, steel channels are suitable for use in telecommunications towers. Steel channels provide excellent structural support, durability, and load-bearing capacity, making them ideal for constructing tall and heavy telecommunication towers. Additionally, steel channels can withstand harsh weather conditions and offer flexibility for future modifications or additions to the tower.
Q: How do steel channels perform in extreme temperatures?
Steel channels are known for their excellent performance in extreme temperatures. They have a high melting point, which makes them resistant to heat and able to withstand high temperatures without warping or deforming. This makes steel channels suitable for applications in industries that require heat resistance, such as the automotive, aerospace, and construction sectors. In extreme cold temperatures, steel channels also perform well. Steel has a low coefficient of thermal expansion, meaning it does not contract or expand significantly with temperature changes. This property allows steel channels to maintain their structural integrity and dimensional stability even in freezing conditions. Furthermore, steel channels have good thermal conductivity, which allows them to efficiently transfer heat. This characteristic is beneficial in extreme temperature environments as it helps to evenly distribute heat, preventing localized hot spots or cold spots. Overall, steel channels are highly reliable in extreme temperatures, making them a preferred choice for various applications where temperature resistance is crucial.
Q: How are steel channels used in the construction of warehouses?
Steel channels are commonly used in the construction of warehouses to provide structural support. They are used as beams or columns to bear heavy loads and distribute weight evenly throughout the structure. Steel channels also help in creating strong and stable frames, allowing for the construction of large and open spaces within the warehouse. Additionally, they can be used for bracing, reinforcing walls, and supporting overhead doors. Overall, steel channels play a crucial role in ensuring the stability and durability of warehouse structures.
Q: What does channel 160 type 140*40 steel pipe mean?
160 channel refers to the bottom of the channel, width is 160 mm, but the height and thickness are not marked, the complete expression, such as 160*60*3.0, 160*80*4.0 and so on140*40 steel pipe generally refers to the outer diameter of 140 mm, wall thickness of 40 mm steel pipe
Q: Can steel channels be used in the construction of staircases?
Yes, steel channels can be used in the construction of staircases. Steel channels are commonly used as stringers or supports for stairs due to their strength, durability, and versatility. They provide a strong structural framework for stairs and can be customized to fit various designs and dimensions. Additionally, steel channels offer excellent load-bearing capacity, making them suitable for both commercial and residential staircase construction.
Q: The back of the channel steel deviates from the 30mm. The upper and lower iron plates are welded at intervals. Is the cross section resistance moment the sum of the two? No, is it big or small? Thank you
The direction of the X axis distance of the centroid and centroid of single channel and two channel combination from coincidence (the same), so the moment of inertia of the two combinations of two single channel channel is equal to the moment of inertia and resistance moment and is also. (resistance moment = moment of inertia / centroid distance)The Y axis direction, back to the departure from the 30mm two, the centroid distance than the centroid of the single channel combination channel distance increases 15mm, moment of inertia is the centroid distance square by channel section, so a combination of two channel resistance moment is far greater than the two single channel and.
UINDA,a well-known enterprise in Tangshan specializing in the production and sales of GB and JIS U channel. GB U channel from 10# to 18#, JIS U channel 12.5# and 15#.

1. Manufacturer Overview

Location Tangshan, China
Year Established 2000
Annual Output Value Above US$ 50 Million
Main Markets Mid East; Southeast Asia; Korea
Company Certifications

2. Manufacturer Certificates

a) Certification Name  
Range  
Reference  
Validity Period  

3. Manufacturer Capability

a) Trade Capacity
Nearest Port Tianjin
Export Percentage 20% - 30%
No.of Employees in Trade Department 10-20 People
Language Spoken: English; Chinese
b) Factory Information
Factory Size: Above 81,000 square meters
No. of Production Lines 1
Contract Manufacturing OEM Service Offered
Product Price Range Average

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