Spirally Welded Steel Pipes

Spirally Welded Steel Pipes

Product Welded pipe
Standard GB/T3091-2001
OD 15 – 3630mm
WT 0.5 -- 30mm
Length 5.8– 12mAccordingtocustomers' requirement
ODtolerance +/- 0.1mm
WT tolerance +/- 0.1mm
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Product Details

Product Details



spirally welded steel pipes Welder qualification controlAny pipeline project is completed by people, so the fundamental guarantee of project quality lies in the skill level of the people involved in the project and the overall construction management level of the team.Pipeline girth seam welding is to master qualified technology to complete, so how to determine the welding workers really master this skill, and can faithfully implement the specified welding process, is to be determined by the welder qualification examination.Depending on the specification, different locations and types of welds require different welder skills.The qualification of on-site pipeline welders is generally divided into two categories:






Brief Introduction

spirally welded steel pipes


ProductStandardODWTLength
Welded pipeGB/T3091-200115 – 3630mm 0.5 -- 30mm5.8– 12mAccordingtocustomers' requirement
BS1387-1985



ASTM A53ODtolerance WT tolerance 

DIN2440




+/- 0.1mm+/- 0.1mm

Applications rangeUsed in conveying gas,water,and oil in both oil and gas industries. chemical fertilizer pipe/ natural gas/ petroleum transportation,etc.


MarketNorth/South America, Europe, Asia,Africa,Mid East,ect.


MOQ10 ton


PortPackagingDelivery time

Tianjin XinGangIn containers or according to the customer's requirement

According to the customers'requirement
Within 25 days after we receive an irrevocable LC or 30% downpayment by T/T. 


Welder qualification controlAny pipeline project is completed by people, so the fundamental guarantee of project quality lies in the skill level of the people involved in the project and the overall construction management level of the team.Pipeline girth seam welding is to master qualified technology to complete, so how to determine the welding workers really master this skill, and can faithfully implement the specified welding process, is to be determined by the welder qualification examination.Depending on the specification, different locations and types of welds require different welder skills.The qualification of on-site pipeline welders is generally divided into two categories:



One is the qualification of normal pipeline pipeline welding, which can be divided into 5G position and 6G position.Because it is an assembly line operation, it can even be qualified according to each level.The other category is the qualification of the repair welding joint, which requires the welder to be able to conduct independent welding cutting, group welding and repair welding according to the repair process.The welder shall be qualified to weld at least 6G of the main line welds.





The Process Flow

螺旋1






The Application

螺旋2









The Workshop


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

 has more than ten 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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