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Thick Wall Spiral Pipe

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    2020-03-14 07:35

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Hangzhou Wantuo Technology Co., Ltd
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10TH Street, Hangzhou Economy & Technology Development Area, Hangzhou, Zhejiang, China

Product details

Thick wall spiral steel pipe is a kind of spiral steel pipe whose wall thickness is a little thicker than that of ordinary spiral steel pipe. Compared with the common wall thickness spiral steel pipe, it has the advantages of high compressive strength, high impact strength, high safety performance and long service life. The Executive Standards are 50379711 and API

Forming process

1. Before spiral steel pipe forming,

The spiral steel pipe adopts the advanced double-sided submerged arc welding technology, which can realize the welding at the best position. It is not easy to have defects such as staggered edge, welding deviation and incomplete penetration, and it is easy to control the welding quality and position. The spiral steel pipe can be welded in the best welding position by special welding process, without any wrong defects, which can ensure the qualification and quality of the spiral steel pipe.

2. In the process of forming spiral steel pipe

During the forming process of spiral steel pipe, the steel plate shall be evenly deformed, with small residual stress and no scratch on the surface. Therefore, the steel plate for making spiral steel pipe shall be carefully selected, with even surface and no scratch. The processed spiral steel pipe has greater flexibility in the size and specification range of diameter and wall thickness, especially in the production of high-grade thick wall steel pipe, especially in the small and medium-sized thick wall pipe, there are advantages that other processes cannot match, which can meet more requirements of users in the specification of spiral steel pipe. The diameter and size range of the spiral steel pipe should be grasped flexibly. With the good advantages of our own, we can meet the extensive needs of more users, so that the spiral steel pipe can be popularized and popularized Development direction of thick wall spiral steel tube .With the development of industry, higher requirements are put forward for the use of spiral pipes in engineering. The reason why thick wall spiral pipes appear is that the pressure produced by some media that need to be transported cannot be borne by ordinary spiral steel pipes. If we change to straight seam steel pipes or seamless steel pipes, it will greatly increase the cost of engineering. If it is a dangerous medium, we will increase the cost This is inevitable, so when selecting pipelines, it is determined by the medium to be transported and the pressure to be generated by the medium.

Product Name

Thick Wall Spiral Pipe

Process Method

Spiral Welded


API 5L, API 5CT, ASTM A252, ASTM 53, EN10217, EN10219, BS, JIS, IS

Out Diameter

219mm – 3620mm (8"-100")

Wall Thickness

3mm – 30mm


6-12m or customized

Steel Grade

Q235B, Q345B, Q235C,Q345C,Q195,Q215


Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating, Anti rust oil, Protective coatings etc.


Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test


Used for liquid delivery, such as water, gas, and oil



W—Per meter weight, kg/m

D—Out diameter, mm

S—Thickness, mm