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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Product Description:

 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

 

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Q:What is the difference between steel tubes such as channel steel or square tube?
See how you used, used in what place, general use of channel more points, two channel to live, and then welding, square tube convenient point, but the strength is not good, but time and effort
Q:How can theoretical weight be obtained for 12.5 channel steel?
Using 12.6# (126*53*5.5)Weight 12.37 m/kgTheoretical weight of channel steel W=0.00785* waist thickness [height +e (leg width waist thickness)]E value: the general model is 3.26The steel density is 7.85g/cm3
Q:How many tons per ton for channel 12?
12# channel height 120 mm, leg width 53 mm, waist thickness 5.5 mm, 12.06 kg / m, about 13.5 tons per ton, price about 3700 yuan per ton
Q:Standard size and price of 12# channel steel...
According to the 05 building system quota, the specification 120*53*5.5 (unit mm), the unit price is 4739.90 yuan per ton.
Q:According to the standard? indoor hanging stone 30 meters high? whether to add channel?
The key is to see your wall!! If it's a load-bearing wall. That won't be necessary
Q:What kind of welding rod used for channel steel?
Manual arc welding, the use of strength grades T50 electrode: knot 506, knot 507, knot 502, knot 503, knot 552, knot 553, etc.;
Q:No. 20 b one meter with multiple channel
Each physical channel is the standard provisions of 20b# weight 25.777 kg, but the actual weight is not up to a difference.
Q:Which kind of wind resistance is better for square tube, square tube or channel steel?
Why don't you buy square tubes directly? How do you budget?
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 on. 140*40 steel pipe generally refers to the outer diameter of 140 mm, wall thickness of 40 mm steel pipe.
Q:What material does hot-dip galvanized channel belong to?
It is basically determined that carbon steel is the raw material of channel steel and carbon steel or low alloy steel billet with carbon content of not more than 0.25%.
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