Spiral Pipe Duct

Production Spiral welded Steel Pipe
Standard/Material API 5L, API 5CT, SY/T5037, SY/T5040, GB/T9711.1,
GB/T9711.2, A, B, X42-X80, L175-L555,L245NB, etc.
Out Diameter 159mm-3200mm
Wall Thickness 3mm-30mm
Length 5.8m-11.8m,or as customer's requirements.
Place of Origin Tianjin, China
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Product Details

Product Details

spiral pipe duct GB/T9711.1(for grade A steel) and GB/T9711.2(for grade B steel) are included. The quality and test requirements specified in GB9711.2 are generally higher than those specified in GB9711.1. GB9711.2 is generally applicable to steel tubes for conveying combustible fluids, but not for casting pipes.

Brief Introduction

Spiral Pipe Duct

Production Spiral welded  Steel Pipe
Standard/Material  API 5L, API 5CT, SY/T5037, SY/T5040, GB/T9711.1, 
GB/T9711.2, A, B, X42-X80, L175-L555,L245NB, etc.
Out Diameter 159mm-3200mm
Wall  Thickness 3mm-30mm
Length 5.8m-11.8m,or as customer's requirements.
Place of Origin Tianjin, China
Main Market Middle East,Africa,South-east Asia,USA,Canada,South America
Technique SAW, ERW welyading etc.
Usage 1.   Piling project
 2. Heat-supply project
 3.  Conveying drinking water,drainage,coal gas,fuel gas,mine slurry and other low & middle pressure fluids
 4.  API5L Petroleum and natural gas pipeline
 5.  Chemistry industry
 6.  Electric power engineering circulating pipe
Package 1.Bundle packing or in bulk,
 2. Bevelled or plain ends as per buyer's request,
 3. Marks: as per customer's request,
 4.  Surface treatment: with or without varnish/2PP/2PE/3PE/3PP/FBE coating,
 5.  Metal or plastic protecting caps at pipe ends
Delivery Timeabout 20days after receipt of irrevocable L/C at sight or 30% deposit T.T
Other products 1.   Spiral welded steel pipe
 2.  LSAW steel pipe
 3.  ERW steel pipe
 4.  Casing pipe
External Coating FBE, 2PE, 3PE,3PP etc.
Pipe end Plain end, beveled end, PVC covered and both ends capped ,threaded and coupled

Spiral Pipe Duct

Gb standardPart 1 of GB/T9711 specifies the technical delivery conditions for non-alloy steel and alloy steel (excluding stainless steel) seamless and welded steel tubes for the transport of combustible and non-combustible fluids (including water) in the petroleum and natural gas industry in accordance with basic quality and test requirements (class A).

spiral pipe duct

Metal spiral tube is also called the bellows, is made of cold rolled steel belt or galvanized steel strip on the roll mill spiral occlusion after pressure wave, according to the cross section shape can be divided into round and flat type, the length of the metal spiral tube is commonly 4 to 6 m, diameter 40 ~ 130 mm. Corrugated pipe before and check should be made for each a corrugated tube walls can not have holes, or need to repair in time.The bellows pipe joint adopts the method of socket, the length of the sleeve is 200~300mm, the bellows pipe sleeve of the larger size is used to screw on the bellows pipe to be connected, the two ends are pasted with adhesive tape along the circumference to prevent the mortar from flowing into the pipe

Spiral Pipe Duct

This standard includes threaded and extra-heavy steel pipe with rebar;Unthreaded, extra-light heavyweight unthreaded, ordinary heavyweight unthreaded, extra-heavy heavyweight (XS) unthreaded and extra-heavy heavyweight (XXS) unthreaded steel tubes;And socket and socket steel tubes.The dimensions, measuring methods, technical requirements and verification of gauges for thread and thread gauges are given in GB/T9253.4, GB/T9253.7 and SY/T5994, and are applicable to the products covered by this standard.

The Process Flow



The Application


The Workshop

Cangzhou Steel Pipe Group (CSPG)Co.,Ltd.

 has more than eighteen years history company which located in Lecong Iron and Steel World, a well-known steel distribution center in China, with superior geographical position and convenient water and land transportation. 

We are a direct-selling manufacturer specializing in the research and development of spiral steel pipes, steel coiled pipes, anti-corrosion steel pipes inside and outside. Since its inception, the company has been guided by a brand-new thinking of steel pipe product market based on the business philosophy of honesty, pragmatism and knowledge-seeking.




Edit by Ms. Vicky of  CSPG

Contact us directly by:

Email: ella@cnspipe.com  ,vicky@cnspipe.net

Tel / Whatsapp: +86-180327140146

Skype: cnspipe002

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