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's the definition of fire endurance of the fire-resistant coating for steel structure?
1. Fire endurance. Conduct fire resistance test of any building component according to the standard time-temperature curve, and the time when it is subjected to the fire to the time when it loses support capability or fire insulation function or its integrality is destroyed is referred to fire endurance. 2. Steel has relatively low fire endurance which is usually 0.25h only, namely 15 minutes; 3. Of steel structure buildings, steel can be used as beams, pillars, etc. but its fire endurance is not enough (usually these components have higher requirement on fire endurance, and take pillar as an example, it is usually demanded that the fire endurance should be 2-3h), and under this condition, it needs to brush fire retardant coating so as to raise the fire endurance. As to the specific quantity or types of the fire retardant coating, it is decided upon the actual conditions. In short, the building material needs to meet the required fire endurance of the buildings.
Q:What is the best color of refractory brick
Clay refractory brick: Yellow and deep yellow; acid-proof brick: Red, high alumina brick Beige, a little white; square viewing brick: Yellow, red, white, gray, brown, brown, nigger-brown and so on; color is just one aspect of the selection of refractory bricks, it mainly is to see the inherent quality
Q:Why is it required to wrap alkali-resistant fiberglass mesh at the entrance to the hole?
Flanging is good for protecting the edge of insulating layer and door and window are vulnerable to external damage. The window and door openings and other locations are not the continuation of the mesh position, large wall decapitated need Internet Plaid lap, discrete locations Mesh prone to stress concentration cracks,
Q:Who knows how many poured refactory material are there?
Pouring refractory material can be classified into the followings according to the body density: Heavy (> 2.0g\cm3), medium heavy (1.0-2.0g\cm3), light (0.4-1.0g\cm3); by binding agent: Combination of hydration, chemical binding, condensation, hydration and condensation: Clay, high alumina, silica, magnesia, alumina magnesia, magnesium and chromium, magnesium zirconium, silicon carbide etc.. Clay brick, high alumina brick, bead brick, silica brick, light mullite, alumina hollow spherical brick, oxidation zirconium hollow spherical brick, corundum brick, magnesia brick, magnesia brick, magnesia alumina spinel brick, magnesia chrome brick and so on
Q:What's the application field of aluminum foil?
Aluminum foil can be used to roast fish and meet, pack dim sum and snacks, reserve leftovers, decorate items and clean.
Q:several refractory brick of rotary kiln several is damaged, how many refractory bricks should be replaced?
In general, if the brick inside the kiln break or loose core, the bricks of whole circle should be replaced, if only mend by replacing a damage part is also ok, but the service life is shorter.
Q:What is the difference between ceramic fiber insulated cotton and aluminum silicate cotton?
They are thermal insulated materials. You should decide to use which one according to the using environment. Aluminum silicate fiber cotton is suggested to be used in equipment insulation. In different using environment, their thermal insulation effect will be different. Ceramic fiber blanket is also called as aluminum silicate fiber blanket and aluminum silicate acupuncture blanket, and the main material is aluminum silicate fiber cotton. Considering the pure thermal insulation effect, ceramic fiber blanket is better than aluminum silicate insulation cotton. The reason is that ceramic fiber blanket is formed by double needle process from aluminum silicate cotton, which greatly increases its intertexture degree, resistance to lamination as well as tensile strength and flatness. Fiber blanket contains no organic binder/binding agent to assure its plasticity and stability in the environment of high and low temperature.
Q:Who can tell me what the ceramic fiber density is?
Refractory ceramic fiber material, a kind of light and efficient thermal insulation material, owns the following advantages compared with traditional thermal insulating material: Ceramic fiber lining has low volume density. It is over 75%lighter than the light weight insulating brick, and 90%-95% lighter than the light weight castable lining. If fiber lining is used, the steel structure load of furnaces can be greatly reduced and its service life will be prolonged. Ceramic fiber lining has low thermal capacity which is only about l/10 of that of the light weight and heat resistant lining and light weight castable lining. The thermal capacity of the lining material is proportional to its mass. Low thermal capacity means that furnaces absorb less heat in the reciprocating operation, meanwhile accelerate its temperature rise, greatly reducing energy consumption during the operation and control of the furnace temperature, and particularly making the starting-up and blowing-out of heating furnaces obtain remarkable energy conservation effect. Ceramic fiber lining has low thermal conductivity. When the average temperature is 400℃, its thermal conductivity coefficient is less than 0.1w/mk; when the average temperature is 600℃, its thermal conductivity coefficient is less than 0.15w/mk; when it is 1000℃, the thermal conductivity coefficient is less than 0.25w/mk, which is around l/8 of that of the light clay brick and l/10 of that of the lightweight and heat resistant lining, achieving excellent thermal insulation effect. Ceramic fiber lining has easy construction. Expansion joints are not needed during the construction process, construction personnel can take up work right after basic training, and the construction technical factors have little impact on the lining’s thermal insulation performance.
Q:What is glass fiber extrusion
Glass fiber extruding machine set can be used to produce different shapes of glass fiber reinforced plastics in different shapes, which can be formed by the oven traction machine oil pump station and so on.
Q:Does anyone know fire-proof material of fireproof wooden door?
Fireproof wooden door goes through the flame treatment, so it can prevent fire. Its principle: Fire-retardant treated timber has become flame retardant material itself and its fire endurance has increased. The commonly used method of fire retardant treatment for timber including: Spraying method, soaking method, boiling method, vacuum method, vacuum-pressure method.

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