• Composite Pipes ASTM A519 4140 Seamless Steel Pipe Made in China System 1
  • Composite Pipes ASTM A519 4140 Seamless Steel Pipe Made in China System 2
  • Composite Pipes ASTM A519 4140 Seamless Steel Pipe Made in China System 3
Composite Pipes ASTM A519 4140 Seamless Steel Pipe Made in China

Composite Pipes ASTM A519 4140 Seamless Steel Pipe Made in China

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Description of Seamless Steel Pipe

ASTM A519 4140

Seamless steel pipe is a hollow section, no seams of strip steel. Is made from solid tube ingot or the perforation capillary, then through hot rolling and cold rolling or cold dial. Steel pipe has a hollow section, a large number of used for conveying fluid pipe, such as oil, natural gas, coal gas, water and some solid materials, such as pipelines

 

Features of Seamless Steel Pipe

High strength

High toughness

High hardenability

The cold deformation

 

Application of Seamless Steel Pipe

Screw drill tool

Wellhead components

Nipple

Fishing tool

 

Technical Data of Seamless Steel Pipe

(ODXWTXL mm):51--530x4--90x5000-12000(mm)

 

 

ElementCSiMnPSCuNiCuCrMoOSn
Content(wt%)0.380.150.750.800.15
0.430.351.000.0250.0250.250.250.301.100.250.00250.020

 

IMages of Seamless Steel Pipe

Seamless Steel Pipe ASTM A519 4140 made in China

Seamless Steel Pipe ASTM A519 4140 made in China

Seamless Steel Pipe ASTM A519 4140 made in China

 

FAQ

①How is the quality of your products?
    Our products are manufactured strictly according to national and internaional standard, and we take a test 
on every pipe before delivered out. If you want see our quality certifications and all kinds of testing report, please just ask us for it.
Guaranteed: If products’ quality don’t accord to discription as we give or the promise before you place order, we promise 100% refund.

②How about price?
    Yes, we are factory and be able to give you lowest price below market one, and we have a policy that “ for saving time and absolutely honest business attitude, we quote as lowest as possible for any customer, and discount can be given according to quantity”,if you like bargain and factory price is not low enough as you think, just don’t waste your time.Please trust the quotation we would give you, it is professional one.

③Why should you chose us?
    Chose happens because of quality, then price, We can give you both.Additionally, we can also offer professional products inquiry, products knowledge train(for agents), smooth goods delivery, exellent customer solution proposals.Our service formula: good quality+good price+good service=customer’s trust
SGS test is available, customer inspection before shipping is welcome, third party inspection is no problem.

 

Q: Why FRP pipes for outdoor waste gas treatment equipment are selected?
Glass fiber reinforced plastic properties: light and hard, non conductive, stable performance, high mechanical strength, less recycling, corrosion resistance.
Q: Winding method of glass fibre reinforced plastic pipeline anticorrosive glass fiber cloth
1) first, apply the release agent on the molding surface of the glass lined sand pipe mold (or a transparent cellophane on the outer surface of the mold);2) after sufficient drying, the magnesium oxychloride cement with initiator (or curing agent), accelerant and other additives is evenly coated on the molding surface of the die;3) then put a good glass cloth on the glass lined sand pipe;4) then apply the magnesium oxychloride cement on the paved glass cloth and take care to remove the bubbles.5) with good magnesium oxychloride cement paste then with cut glass cloth;6) repeat this operation until the GRP sand pipe reaches the design and gauge thickness.
Q: The difference between FRP process tubes and GRP tubes
Kashi Eisa's goal is to increase stiffness (large pipe defects) and reduce costs, and process tubes (mostly small tubes), these two aspects are no problems;
Q: Do I need CCC certification for ventilated GRP?
Usually fiberglass, air conditioning, ventilation pipes will have insulation requirements, the general need not heat preservation.
Q: What can be done to solve the leakage of FRP pipe?
The method of mending is hand paste. The stones must be taken away so that the pipes are restored to their original shape. If you can get into the pipe, polish it first and repair the lining.
Q: What's the difference between glass fiber reinforced plastic pipe and glass fiber reinforced sand pipe? What kind of material is good?
Sand tube is more brittle, gfrpmp is relative to the glass tube can be called pure glass tube, glass tube is not with quartz sand, the two pipes generally used in different areas, the pure glass pipe can be used in most areas, but the sand tube is generally only used in the political field, especially is the large diameter sand tube.
Q: What kind of material is the pipe of the pipe that installs the pressure transmitter of GRP conduit? Is it fiberglass or carbon steel?
It is generally assumed that it is made of glass fiber reinforced plastic. The main pipe is made of glass fiber reinforced plastic. The medium is corrosive. Other materials must not be suitable
Q: Is there any ventilation duct made of glass fibre reinforced plastic in Baotou?
1. Corrosion resistant FRP pipes resist acid, alkali, salt, sea water, untreated sewage, corrosive soil or groundwater, and the corrosion of numerous chemical fluids.2, good frost resistance FRP heat pipe temperature range between 40 to 80 DEG C, if the first with a special resin use temperature can reach higher.
Q: Who knows, how is the glass reinforced septic tank connected with the municipal pipe?
Septic tank (Hu, F, NCH) is the treatment of nightsoil and to filter precipitation equipment. The principle is that the cured material decomposes at the bottom of the tank, and the upper hydration object flows into the pipeline to prevent the pipe from clogging and has enough time to hydrolyze the solidified object (such as excrement and urine). Tank (septic) refers to the division of living sewage sludge, and anaerobic digestion of sludge structure of small structures.
Q: How to improve the compressive strength of waste glass fiber reinforced plastic profiles (such as square tubes) should be started with resin, curing agent, glass fiber or other aspects!
Ensure the solidification of glass steel products in a reasonable range, in general, glass fibre reinforced epoxy resin material curing degree if the use of amine curing agent, the best curing degree in the range of 135 degrees --150 degrees, polyester resin, Mohs hardness of about 60 is OK.

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