Hot Dipped Galvanized Steel Pipe in Different Specifications

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1. Product Description:

Hot dip galvanized pipe is made of molten metal and iron substrate reaction to produce alloy layer, so that the substrate and the coating two. Hot dip galvanizing is first to pickling steel pipe, in order to remove iron oxide in the surface of steel, pickling, by ammonium chloride or zinc chloride aqueous solution or ammonium chloride and chloride zinc mixed aqueous solution groove cleaning is then fed into hot dip tank.


2. Product Characteristic:

Hot dip galvanized coating with uniform, strong adhesion, long service life, etc.. The complex physical and chemical reactions of the steel tube matrix and the molten bath have formed the structure of corrosion resistant. Alloy layer is integrated with the pure zinc layer and the steel tube. Therefore, its corrosion resistance.



8 inch schedule 40 Hot dipped galvanized steel pipe
2.Length: 6meter or as customer


O.D tolerance



± 0.03mm


International Standard






Product  Category

Metallurgy, Minerial&Energy



1.Big OD:

2.Small OD:

3.woven cloth with 7 slats

4.As per to clients


4. Reference Picture:


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Q:What is the name of the white clay refractory brick
The name of white clay is kaolin clay
Q:What's the highest temperature of aluminum foil paper?
In actual use, the width cannot exceed 120 and the hight cannot exceed 180.lighter can not make thhis material burn.
Q:What are the models of bauxite with high alumina?
China Ferrous Metal Industry Corporation released the industry standard of bauxite (YS / T78-94) in 1994. According to this standard, bauxite can be divided to sedimentary diaspore, stacked type diaspore and lateritic gibbsite. According to the chemical composition, it can be divided into nine trade marks as LK12-70, LK8-65, LK5- 60, LK3-53, LK15-60, LK11-55, LK8-50, LK7-50 and LK3-40. In addition to the provisions of chemical composition of bauxite, the standard also requires that the water of sedimentary diaspore shall not exceed 7% and water of stacked type diaspore and lateritic gibbsite shall not exceed 8%. Moreover, particle size of bauxite should be not greater than 150mm. Bauxite shall not be mixed with clay, limestone and other debris.
Q:How to test the various components of the refractory brick?
If you want to know the chemical compound components, you can do the analysis of meteorological chromatography, and then testing, if you just want to detect contents of elements, you can do a XRF, but you should smash, grind and homogenize the refractory bricks. The specific operation process is not convenient to describe in detail, that is, X ray diffraction, through X ray fluorescence analysis, you can know that the elements and contents contained in it, if you want to understand its internal structure, you can also do a XRD
Q:What is organic glass? What is glass fibre reinforced plastic? ?
Q:Who knows how to use glass silk mesh?
Fiberglass wall mesh functions well. On the one hand, it can effectively increase the tensile strength of the protective layer, on the other hand, because the stress can be effectively dispersed, it can disperse original wider cracks into smaller ones, thus reaching the effect of anti-crack. Surface coating materials and coating amount has more important significance on alkali resistance of fiberglass mesh while glass fiber has decisive significance on the long-term alkali resistance.
Q:Does wall treatment need mesh?
Mesh is used to prevent walls from cracking. Of course, using it is better than no use.with a better than not.
Q:Mesh and fiberglass cloth, which is better?
The better one is higher in price. The worse one is low in price.
Q:what's the detailed address of fireproof and thermal inuslation matertial market?
Detailed address of fire insulation materials market is as follows: A: Guangzhou Huatai building materials co., LTD. Address: Guangzhou Tianhe Chepo Road no. 10 B: Address of Donglong building materials market: Guangzhou Tianhe Taian North Road no. 7 C: Address of Huiya building materials trade market : Guangzhou Tianhe Sports West Road No. 109
Q:What are the specific steps of stirring the steel ladle castable?
Steps are as follows. 1 Compulsory mixer is used to stir the castable and bags, rope and other debris can not mix in the castable when stirred. 2, Castable should be unpacked on the scene. Stirred volume depends on the capacity of the mixer. Castable should be accurately measured and put into a blender. 3 The process of first dry mixing and then wet mixing is adopted. After the castable is added to the mixer, it is dryly mixed for 2 minutes, add about 5.2 to 5.5 percent of water and continue to add water while stirring. Water that is 80% of the total should be added, and then decide whether to continue to add or not depending on the consistence (noting that the water must be clean water and sewage can not be used). Then it is wetly mixed for 4 minutes and stirred for not less than 6 minutes at one time, until castable is even. In general, the bottom is slightly dry and the wall of the ladle is slightly dilute (the amount of water is only for reference). 4, The amount of water and mixing time should be controlled strictly when stirred to ensure that the needs of the consistency are met. If castable is too thin, it will seriously affect the quality of the material. The stirred volume, stirring time and water that is added should be consistent and they can not suddenly be thick or suddenly be thin. If the consistency does not meet the requirements, the castable should be put back to the mixer and stirred with appropriate water or dry materials. 5, It should be stirred evenly and casting should finish in 20 minutes, in order to avoid sclerosis, affecting structural strength of ladle lining 6, After each completion of construction, varieties of castable should be changed and the mixer should be cleaned 7, Stirring can stop in halfway. If the mixer breaks down and it can be repaired in a short time, some of the materials have to be removed before the machine is opened. If the machine can be repaired on time, castable refractory should all be removed.

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