JIS GB Standard Hot Rolled Steel U-channel

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Product Description:

Product Description:

OKorder is offering STEEL CHANNEL at great prices with worldwide shipping. Our supplier is a world-class manufacturer of steel, with our products utilized the world over. OKorder annually supplies products to European, North American and Asian markets. We provide quotations within 24 hours of receiving an inquiry and guarantee competitive prices.

 

Product Applications:

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.

 

Product Advantages:

OKorder's STEEL CHANNELare durable, strong, and resist corrosion.

 

Main Product Features:

·         Premium quality

·         Prompt delivery & seaworthy packing (30 days after receiving deposit)

·         Corrosion resistance

·         Can be recycled and reused

·         Mill test certification

·         Professional Service

·         Competitive pricing

 

Product Specifications:

Minimum Order Quantity: 25 Tons Unit: m.t. Loading Port: Xingang Port
Supply Ability: 1000 Tons Per Day Payment Terms: TT or L/C    

Product Description:
Specifications of Steel U Channel:

Standard Applied: GB Standard, EN Standard(UPN), JIS Standard

Sizes: 50mm to 300mm

Material Grade: Q235B, Q345B, S235JR, SS400, ASTM A36


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.

 

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

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

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

               

Grade

Element(%)

C

Mn

P

S

SS330

--

--

≦0.050

≦0.050

SS400

SS490

SS540

≦0.30

≦1.60

≦0.040

≦0.040

                  

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Q:28# how to butt joint channel?
Manual arc welding and J422 (E4303) welding electrodes can be used.Take the side of the web welded stiffening plate (channel steel, in the inner side of the groove with stiffening plate), the wing plate with open groove back sealing welding, welding before welding groove groove cutting slag and its inclusion must be cleared; after welding inspection. The web stiffener is greater than or equal to the thickness of the web. The dimension of the reinforcing plate is: the length of the steel plate is equal to the height of the section steel, and the width is equal to the height of the section steel, minus 70mm.
Q:What's the width of the 22 channel wing?
Standard 22# channel steel has 77 and 79, two widths.
Q:Is channel steel cold rolled or hot rolled?
Belong to hot rollingThe raw material steel billet for channel steel is carbon or low alloy steel billets with a carbon content of not more than 0.25%. The finished channel steel is delivered by hot forming, normalizing or hot rolling. The specifications are expressed in millimeters of height (H) * leg width (b) * waist thickness (d), such as 100*48*5.3, which means waist height is 100 mm, leg width is 48 mm, waist thickness is 5.3 mm channel, or 10# channel steel. The same height of the channel, if there are several different leg width and waist thickness, also need to add a, B, C on the right side of the model to distinguish, such as 25#a, 25#b, 25#c and so on.
Q:Why did the channel steel start from the 4 floor?
Bottom construction, not early and pick. There are other aspects, you can see that the four layer began to be better, and pick too late, the following shelf is relatively high, uneconomical. Compare the two. It is decided, through the economic and technical comparison of a more reasonable starting position.
Q:14 of channel steel and 12 of I-beam which force?
Channel steel is a kind of carbon structural steel used for construction and machinery. It is a complex section steel. Its cross section has a groove shape. Channel steel is mainly used in building structure, curtain wall engineering, mechanical equipment and vehicle manufacturing, etc.. In use, it requires better welding, riveting performance and comprehensive mechanical properties. The raw material steel billet for channel steel is carbon or low alloy steel billets with a carbon content of not more than 0.25%. The finished channel steel is delivered by hot forming, normalizing or hot rolling.
Q:Is the channel 20 the same as the channel 20b?
The specifications are expressed in millimeters of height (H) * leg width (b) * waist thickness (d), such as 100*48*5.3, which means waist height is 100 mm, leg width is 48 mm, waist thickness is 5.3 mm channel, or 10# channel steel. The same height of the channel, if there are several different leg width and waist thickness, also need to add a, B, C on the right side of the model, such as 22#a, 22#b and so on.
Q:I want to know what kind of steel is this type of steel, such as channel steel and die steel?
Belong to section bar. In accordance with the different smelting quality of steel, steel is divided into ordinary steel and high quality steel. According to the current catalogue of metal products, ordinary steel can be divided into large section steel, medium section steel and small section steel. The section steel can be divided into I-beam, channel steel, angle steel, round steel and so on according to its sectional shape. Large steel: large steel, I-beam, channel steel, angle steel and flat steel are hot rolled, round bar, Fang Gang, six angle iron in addition to hot rolling, there are forging, cold drawn and so on.
Q:What type of channel steel and I-beam should be used to build an attic floor?
1.16 channel steel is feasible plan, but channel used to do horizontal keel, you can open a little distance, 1 meters, 2 to 1 meters, 6 can be, and then spacing 400 with L50 or L60 angle steel connection can be. Do you have wood or steel plates to see what you're going to do upstairs?. 20 I-beam is really not necessary.2., if you use I-beam, you can directly slotted in the wall, and then inserted into the wall after the fixed, you can also use expansion bolts fixed channel, after the wall and then overlap I-beam, full welding.3. with 20 I-beam, the distance can be controlled to 1.6 meters. With channel, then the spacing to control 1.2 meters more appropriate, the middle should use angle steel to do cross brace.
Q:How about the moment of inertia of two back to back channels? There is no formula,,,,.
1, all kinds of channel section of the moment of inertia can be found in the materials manual. Usually two values of two axes through a centroid. In the two back to back cross section, the X axis of the cross center (with the upper and lower flange parallel axes) is added as long as the value is added. On the common boundary to convert back to back, not for any centroid axis of inertia moment = the centroid moment of inertia |+ cross-sectional area X centroid to the shaft of the vertical distance square. 2, if you have AutoCAD software, you can directly find any section of the inertial moments of graphics. 3, it is suggested that the textbook of mechanics of materials be turned over again. This is the basic skill.
Q:What is the weight of the national standard 8# channel steel?
GB 8# channel weight per meter is 8.045KG, you only need to ride on a number of meters, that is, a weight

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