hot dip galvanized steel pipe schedule 40

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Loading Port:
Tianjin
Payment Terms:
TT OR LC
Min Order Qty:
25 m.t.
Supply Capability:
60000 m.t./month

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Item specifice:

Standard: AISI,JIS,GB,BS,DIN,API,EN,ASTM Technique: Hot Rolled,Cold Rolled,ERW,Saw,Spring Shape: U Channel,Square,C Channel,Hexagonal,Round,Rectangular,Oval,LTZ
Surface Treatment: Galvanized Steel Grade: Q235,Q235B,SS400-SS490 Thickness: 0.6~40mm
Length: 6 meters Net Weight: N/M

Product Description:

schedule 40 galvanized steel pipe are widely used in construction, steel structure, machinery etc. we can produce as per international standards. Our pipes are popluar among customers in the world for their qualith and reasonable price

For further more informations about our steel pipe products, please see as follow table

Commodity

schedule 40 galvanized steel pipe
ShapeRound PipeSquare PipeRectangular pipe
DimensionsO.D 1/4''~52''10*10~1200*1200mm10*20~1000*1200mm
Wall thickness0.6~60mm0.6~40mm0.6~40mm
LengthNormal 6 meters long or Random lenght
ToleranceO.D: +/- 5%, Thickness: +/- 5%; Length: +/-10%
Producing standard

Round pipe: GB/T3091, BS1387-1987, ASTM A53, DIN2440, EN39-2001.

Square/Rectangular tube: GB/T6728-2002, ASTM A500 Gr A B C, JIS G3466 etc

Steel Grade

Carbon steel: Q195, Q215,Q235,Q345;SS400, STK400, STK490, ASTM A500, A53, ST37, ST35 etc.

Surface treatment

Hot dip galvanized, painting, oil, plastic powder coating, plain/beveled ends or threaded with sockets/coupling and plastic caps etc.

Inspections

With hydraulic testing, eddy current and infrared test etc

Usages

Scaffolding pipe, Structure pipe, Fence/Door pipe, Furniture, Low

pressure fluid pipe for water oil or gas, Boiler pipe

Package

In bundles by steel strips, waterproof woven cloth with 7 slats, then pack into 20' or 40' container, in bulk or as per your requirements

Lead timeWithin 20 days or as per your requirements
Others

1:Special design available according to requirement.

2:Pipe can be painting.

3:All production process are under the ISO9001:2000 strictly.














































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Q:Seamless steel pipe and welded pipe what is the difference?
The welded pipe is made directly from the stainless steel band by machine, and it is made of round steel or perforated by Guan Pi
Q:Heating system DN40 and DN32 welded steel pipe how to connect?
As for the flange connection: low pressure pipeline is generally not used in this way, can be divided into threaded flanges and flange welding flange, and the flange connecting pipes of different diameters, only the welded flange to diameter, said in a low pressure pipeline which has low pressure pipe connection make an unnecessary move, this is not much, but there are also people with non the standard flange for connecting different pipe diameter, which is not consistent with the technical specification!
Q:What's the difference between straight steel pipe and seamless steel pipe?
Seamless steel pipe and welded pipe are separated because of different production process. Seamless steel tubes include hot rolling, cold rolling, cold drawing, and other rare, such as cold extrusion.
Q:What is the diameter of the steel tube DN20?
1, nominal diameter is nominal diameter, or nominal diameter, or nominal size.2, nominal diameter is a variety of pipe and pipe accessories generic caliber. The same nominal diameter of the tube and pipe accessories can connect with each other, with interchangeability. It is not a real sense of the pipe diameter or diameter, although its value is closer with the pipe diameter or equivalent, is a convenient integer for reference only, are not strict with processing size. Nominal diameter is not the outer diameter, nor the inner diameter, but a nominal size similar to the diameter of the ordinary steel pipe. In order to connect the pipe and pipe fittings in a uniform dimension, each nominal diameter corresponds to an outer diameter, and the inner diameter value varies with the thickness.
Q:How much is the wall thickness standard of building 48?
Steel tube (Steel pipe) production technology development began in the bicycle manufacturing industry, the rise of the early nineteenth Century during the oil development, the two world war ships, boilers, aircraft manufacturing, manufacturing of power boiler after the Second World War, the development of chemical industry of petroleum and natural gas drilling and transportation, will effectively promote the the yield and quality of varieties, the development of steel tube industry.
Q:Difference between cold rolled steel pipe and common steel pipe
From the above point of view, the hot rolled steel pipe used in fluid transport, mechanical structure and other requirements of the size of the situation is not high, cold-rolled steel pipe used in precision instruments, hydraulic systems, pneumatic and other places demanding.
Q:How to make the magnetic steel, can be like a magnet?
Magnetization. Winding the insulated wire on the object, passing in the direct current, and taking it down after a period of time.
Q:How to identify stainless steel pipe and steel pipe?
Stainless steel (Stainless Steel) is referred to as the stainless steel, the resistance of air, steam, water and other weak corrosive medium or with stainless steel known as stainless steel; while the resistance to chemical corrosion (acid, alkali and salt chemical etching) corrosion of steel called acid resistant steel. Because of the difference in the chemical composition of the two, and make their corrosion resistance is different, ordinary stainless steel is generally not resistant to chemical medium corrosion, and acid resistant steel are generally stainless steel.
Q:When can I use the PVC pipe and when to use the galvanized pipe?
PVC pipeline use temperature is -5 to 90 degrees or so, according to the current market price of around 6000 yuan per ton, the price is cheap. Its corrosion resistance is good, can resist most of the acid and alkali, and unlike the steel pipe that is easy to rust, so in the construction of the upper and lower water pipes and other fields have gradually replaced the trend of steel pipe.
Q:What is the weight of hot galvanized steel tubes? DN150 4mm wall thickness
GB/T3091-2008: DN150 welded steel pipe, wall thickness of 6mm, the theory of the weight of welded steel pipe 24.02kg/m, galvanized steel pipe should be multiplied by the weight coefficient after galvanizing, C, DN150, wall thickness of 6mm, C=1.02, DN150, theoretical weight and wall thickness of 6mm galvanized steel 1.02*24.02= 24.5kg/m.

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