Home » Products »

Galvanized Spiral Pipe

Delivery term:The date of payment from buyers deliver within days
  • Price:


  • minimum:

  • Total supply:

  • Delivery term:

    The date of payment from buyers deliver within days

  • seat:


  • Validity to:

    Long-term effective

  • Last update:

    2020-03-02 22:08

  • Browse the number:


Send an inquiries
Company Profile
Hangzhou Wantuo Technology Co., Ltd








10TH Street, Hangzhou Economy & Technology Development Area, Hangzhou, Zhejiang, China


http://www.wantuosteelpipe.com/ http://wantuo.textacabni.com/

Product details

Galvanized spiral steel pipe is a kind of spiral pipe with hot-dip or electro galvanized coating on the surface (internal and external surfaces). Galvanizing can increase the corrosion resistance of steel pipe and prolong its service life. 

1. Application

Application of hot-dip galvanized spiral pipe: power tower, communication tower, railway, highway protection, street lamp pole, marine component, building steel structure component, substation auxiliary facilities, light industry, etc.

2. Production process

The galvanized spiral pipe is to react the molten metal state of zinc with the iron matrix to produce an alloy layer, so as to combine the matrix and the coating, which has certain advantages over the ordinary spiral steel pipe. Because the process is relatively complex, the addition of zinc element makes the plasticity of the spiral steel pipe better, and the corrosion resistance of zinc, especially the chemical corrosion resistance is also very good. The hot-dip galvanizing process is to first acid wash the steel pipe in the acid solution, so as to remove the iron oxide on the surface of the steel pipe. After acid washing, the steel pipe shall be cleaned in the aqueous solution of ammonium chloride or zinc chloride or the mixed aqueous solution of ammonium chloride and zinc chloride, and then sent to the hot-dip galvanizing tank. Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.

3. Advantages

1. The production process is simple and the production efficiency is high. Safe and reliable.

2. Low cost, fast development.

3. The thickness of the wall is thin and the brightness of the inner and outer surface of the tube is high. The steel pipe has high precision and uniform wall thickness.

4. Anticorrosion, good insulation and long service life.

5. Less land occupation, fast construction, favorable for environmental protection.

6. Low heat loss, energy saving.

7. Reduce the project cost, strong economy, high aesthetics.

Product Name

Galvanized 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