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China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC

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  • China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC
  • China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC
  • China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC
  • China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC
  • China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC
  • China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC

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We are one of the leading manufacturers of steel pipe.We have our own factory! Details of Large diameter 4inch 5inch 6inch 7inch 8inch 10inch  12inch to 48inch steel pipes: Material Q195,Q215,Q235, Q345 Ends 1) Plain2) Beveled3) Thread with Coupling or cap End protector 1) Plastic pipe cap2) Iron protector Technique Electronic Resistance Welded (ERW )Electronic Fusion Welded (EFW)Double Submerged Arc Welded (DSAW) Packing Packed in bundles by containers, in bulk, oiled in bundles...


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We stick with the theory of "quality first, company first, steady improvement and innovation to satisfy the customers" for the management and "zero defect, zero complaints" as the quality objective. To perfect our provider, we deliver the items together with the fantastic good quality at the reasonable value for Seamless Square Pipe, Carbon Steel Tubing, Stainless Coil, Base within the small business concept of Top quality initially, we want to fulfill more and additional friends within the word and we hope provide the ideal solution and services to you.
China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC Detail:

We are one of the leading manufacturers of steel pipe.We have our own factory!

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Details of Large diameter 4inch 5inch 6inch 7inch 8inch 10inch  12inch to 48inch steel pipes:

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Material Q195,Q215,Q235, Q345
Ends 1) Plain2) Beveled3) Thread with Coupling or cap
End protector 1) Plastic pipe cap2) Iron protector
Technique Electronic Resistance Welded (ERW )Electronic Fusion Welded (EFW)Double Submerged Arc Welded (DSAW)
Packing Packed in bundles by containers, in bulk, oiled in bundles by containers, PE clothes or according to different request.
Welded Line Type Longitudinal
Inspection With Hydraulic Testing, Eddy Current , Infrared Test
Delivery 1) Container2) Bulk carrier
MOQ 10 tons
Delivery time 7-20 days after received the advance payemnt
Country  of origin Fancyco,Tianjin, China
Payment T/T, L/C, Western Union, D/P, D/A, O/A
Price term FOB, CFR, CIF
Main market North America, South America, Europe, Middle East, Southeast Asia, Australia and Central Asia and many other countries and regions.
Others Fitting as screws and flange also can be supplied

 Normal Specification of Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch  12Inch to 48Inch Steel Pipes

Outer Diameter Wall Thickness Length
Inch mm mm meter
1/2″ 21.3mm 0.6mm-3.0mm 0.3m-12m
3/4″ 26.9mm 0.6mm-3.0mm 0.3m-12m
1″ 33.4mm 1.0mm-3.0mm 0.3m-12m
1-1/4″ 42.3mm 1.0mm-4.0mm 0.3m-12m
1-1/2″ 48.3mm 1.0mm-4.0mm 0.3m-12m
2″ 60.3mm 1.5mm-4.0mm 0.3m-12m
2-1/2″ 76.1mm 1.5mm-4.0mm 0.3m-12m
3″ 88.9mm 1.5mm-9.5mm 0.3m-12m
4″ 114.3mm 2.0mm-9.5mm 0.3m-12m
5″ 141.3mm 3.0mm-9.5mm 0.3m-12m
6″ 168.3mm 3.0mm-12.0mm 1.0m-12m
8″ 219.1mm 3.2mm-12.0mm 1.0m-12m
10″ 273mm 3.2mm-12.0mm 1.0m-12m
12″ 323.8mm 6.0mm-15.0mm 1.0m-12m
14″ 355.6mm 8.0mm-15.0mm 1.0m-12m
16″ 406.4mm 8.0mm-20.0mm 1.0m-12m

Standard out diameter for Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch  12Inch to 48Inch Steel Pipes:

Nominal Pipe Sizes Outside Diameters (mm)
DN INCH ASME JIS DIN GB/T
15 1/2″ 21.3 21.7 21.3 20.0
20 3/4″ 26.7 27.2 26.9 25.0
25 1″ 33.4 34.0 33.7 32.0
32 1.1/4″ 42.2 42.7 42.4 42.0
40 1.1/2″ 48.3 48.6 48.3 48.0
50 2″ 60.3 60.5 60.3 60.0
65 2.1/2″ 73.0 76.3 76.1 76.0
80 3″ 88.9 89.1 88.9 88.0
90 3.1/2″ 101.6 101.6   102.0
100 4″ 114.3 114.3 114.3 114.0
125 5″ 141.3 139.8 139.7 140.0
150 6″ 168.3 165.2 168.3 1.0
200 8″ 219.1 216.3 219.1 219.0
250 10″ 273.0 267.4 273.0 273.0
300 12″ 323.8 318.5 323.9 325.0
350 14″ 355.6 355.6 355.6 355.0
400 16″ 406.4 406.4 406.4 406.0
450 18″ 457.2 457.2 457.0 457.0
500 20″ 508.0 508.0 508.0 508.0
550 22″ 558.8 558.8   558.0
600 24″ 609.6 609.6 610.0 610.0
650 26″ 660.4 660.4   660.0
700 28″ 711.2 711.2 711.0 711.0
750 30″ 762.0 762.0   762.0
800 32″ 812.8 812.8 813.0 812.0
850 34″ 863.6 863.6   863.0
900 36″ 914.4 914.4 914.0 914.0
950 38″ 965.2 965.2   965.0
1000 40″ 1016.0 1016.0 1015.0 1015.0
1050 42″ 1066.8 1066.8   1066.0
1100 44″ 1117.6 1117.6   1117.0
1150 46″ 1108.4 1108.4   1168.0
1200 48″ 1219.2 1219.2 1220.0 1219.0

Specializing in the export of Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch  12Inch to 48Inch Steel Pipes.

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 Packaging ofLarge Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch  12Inch to 48Inch Steel Pipes:

Standard export bundle wrapped with strong steel strip for seaworthy or as per customers requirement

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Product detail pictures:

China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC detail pictures

China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC detail pictures

China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC detail pictures

China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC detail pictures

China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC detail pictures

China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC detail pictures

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To constantly improve the management system by virtue of the rule of "sincerely, good faith and quality are the base of enterprise development", we widely absorb the essence of related products internationally, and constantly develop new products to meet the demands of customers for China Custom Steel Tubing Manufacturers - Large Diameter 4Inch 5Inch 6Inch 7Inch 8Inch 10Inch 12Inch to 48Inch Steel Pipes – TOPTAC , The product will supply to all over the world, such as: Russia, Thailand, Chicago, Custom orders are acceptable with different quality grade and customer's especial design. We are looking forward to establish the good and successful cooperation in business with long terms from the customers of all over the world.
    • The sales manager is very patient, we communicated about three days before we decided to cooperate, finally, we are very satisfied with this cooperation!
    5 Stars By Irene from Jamaica - 2017.07.28 15:46
    This is a reputable company, they have a high level of business management, good quality product and service, every cooperation is assured and delighted!
    5 Stars By Myra from Portugal - 2018.11.28 16:25
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