Hot Dipped Galvanized Steel Pipe in Different Specifications

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Product Description:

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.

 

3.Specification

8 inch schedule 40 Hot dipped galvanized steel pipe
1.Thickness:1.3--17.5mm
2.Length: 6meter or as customer

O.D

O.D tolerance

W.T

20-400mm

± 0.03mm

0.5-11.75mm

International Standard

ISO9001:2008

Standard

ASTM,GB1387-1985,GB/T3091-2001

Material

Q195/Q215/Q235/Q345

Product  Category

Metallurgy, Minerial&Energy

 

Packing

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 are the new refractories? What are the features? How about their application and development?
In metallurgy, in what position should it be used, in order to make the best. Answers are as following. In iron, steelmaking or converter. When questioning, pay attention to the ways. Answers: Try to use synthetic refractory materials.
Q:1000t extruder, the largest can squeeze 6061 aluminum bars of large diameter
It depends on the diameter of the extrusion barrel and the cross-section of the extruded profiles. Like you, with about 130 of the cast rod diameter.
Q:18# channel perimeter
You don't know where to use this data, in general, the characteristics of the data channel in section area and theoretical weight, I suggest you refer to GB/T 706-2008 "hot rolled steel", see annex, hoping to help you.
Q:What is the ratio of the coated sand to the graphite powder? How to improve the refractoriness of precoated sand
In addition to improve the refractoriness with graphite, can also add red. It also plays a role in increasing refractoriness and reducing gas output.
Q:Why do we galvanise steel?
The coating of zinc inhibits rust. First of all the zinc does not oxidize a readily as iron (steel). If the zinc coating gets scratched it still protects the exposed iron. When the zinc and exposed iron get wet they behave like a battery. Electrons flow from the zinc layer to the iron layer. The extra electrons in the iron layer replace any that might be lost to oxidation and help keep the iron metallic. Of course now the zinc oxidizes faster so eventually all of the metallic zinc is removed and the iron is unprotected and will rust. The fact that the zinc doesn't have to cover the steel is shown in another process. To protect the steel hulls of ocean going ships a block of zinc is attached to the bottom. The electrical circuit behaves as described above. When the zinc block has dissolved they just attach another one. If they keep this up the hull of the ship remains corrosion free. A tin coating on steel (as in a tin can) works just the opposite. When the tin is scratched the electrons flow from iron to tin so the iron rusts faster than it would have with no tin.
Q:Do the hot bending toughened film with graphite mould. How do you deal with the pressure on the surface?
If the bronze coins and copper nickel coins corrosion (coin surface has a uniform black, dark green or black thick oxide layer), then it can be washed with strong sulfuric acid or nitric acid solution. Of course, this method of cleaning is only for coins that are not particularly valuable.
Q:What's the difference between bearing steel and round steel?
Bearing steel refers to the steel used to make bearings. Round steel is generally referred to as round bar steel. One refers to the material, and the other refers to the profiles. Such as bearings, needle roller raw material is round steel, but also bearing steel.
Q:What types of steel are silicious quicksand and chromium quicksand used in respectively?
Chromium quicksand can be used in steel-making process that has longer refining time like LF, VD and RH, in stainless steel drainage and thin plate drainage agent. Silicious quicksand is used in short steel-making process, process that is less than 45 seconds or process without refining. You can consult Hua Heng for details or inspect it by yourself.
Q:What are the green products?
As the product categories determined by different countries, the standards are also different. Take Germany as an example, and make a brief introduction to the classification of green products in this country: Germany is the earliest country to develop green products in the world. There are 7 basic types of green products in Germany. Here are some key product categories in these 7 basic types:(1) Recyclable use type including refurbished tires, glass containers, recycling of recycled paper, reusable transport turnover box (bag), recycled plastic and rubber products, recycled glass production of building materials, cassette reusable and refillable on magnetic tape, to recycled stone building materials etc..(2) low toxicity harmful substances including non asbestos lining, low pollution, paint and coatings, powder coatings, zinc air battery, no! "# classic indoor repellents course 248 pesticides, lithium batteries do not contain mercury and cadmium, low pollution and fire extinguishing agent.(3) low emissions including atomization and low emission combustion furnace, low emission and low pollution gas burning furnace, saving gas stove, gas boiler; low emission of waste type printing machine etc..(4) low noise type, including low-noise lawn mowers, low noise motorcycles, low noise construction machinery, low-noise mixer, low noise, low smoke, urban cars, etc..
Q:Does refractory belong to stone, building materials or other?
Refractories belong to organic non-metallic materials.

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