Seamless Steel Pipe ASTM A519 4140 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)
Element | C | Si | Mn | P | S | Cu | Ni | Cu | Cr | Mo | O | Sn |
Content(wt%) | 0.38 | 0.15 | 0.75 | ≤ | ≤ | ≤ | ≤ | ≤ | 0.80 | 0.15 | ≤ | ≤ |
0.43 | 0.35 | 1.00 | 0.025 | 0.025 | 0.25 | 0.25 | 0.30 | 1.10 | 0.25 | 0.0025 | 0.020 |
IMages of Seamless Steel Pipe
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:What are FRP pipes made of?
- Light weightThe weight of the pipe is only 1/4 of the same size and the same length as the ductile iron pipe, and 1/10 of the cement pipe. The transportation is easy to handle and easy to install.
- Q:What's the process of continuous winding glass fiber reinforced plastic sand pipe?
- On line inspection: the pipe being cut and grinded is delivered to the water pressure test machine through the conveyor. After the test is qualified, the pipe joint which has been tested by hydraulic pressure is sent to the pipe joint installation machine for joint installation.
- Q:There is a gap between the new glass fiber reinforced plastic pipe and its through wall. How can the plug be prevented from leaking through the cracks around the pipe?
- Large glass fiber reinforced plastics plants such as the United States and Asia, with FRP through the cabin, can be used to solve your problem, the gap is filled with special blowing agent. In this way, the continuity of FRP material can be guaranteed.
- Q:What is the structure and function of glass fiber reinforced plastic lining?
- The role of FRP lining, corrosion protection, generally attached to the carbon steel container wall, can avoid the use of stainless steel, saving costs. FRP can resist acid and alkali corrosion, PH2-12 or so no problem, but not high temperature, the temperature is higher than 80 degrees, more dangerous, will dissolve.
- Q:What is the elastic modulus of glass fiber reinforced plastic?
- Glass fiber reinforced plastic is another name for glass fiber reinforced plastics, commonly known as FRP (Fiber Reinforced Plastics), that is, fiber reinforced composite plastic. Depending on the fiber used, glass fiber reinforced plastics (GFRP), carbon fiber reinforced plastic (CFRP), boron fiber reinforced composite plastics and so on are classified. It is a kind of composite material made of glass fiber and its products (glass cloth, band, felt, yarn, etc.) as reinforcing material and synthetic resin as base material. Fiber reinforced composites are composed of reinforced fibers and matrix. Fiber (or whisker) diameter is very small, generally below 10 mu m, less defects and smaller, fracture strain of about 30/1000, is brittle material, easy to damage, fracture and corrosion. The matrix is much lower in strength and modulus than fiber, but it can withstand large strains, often with viscoelasticity and elasticity, and is a ductile material.
- Q:FRP pipe price
- FRP prices are calculated in terms of material length and nozzle diameter.FRP duct price is: 3mm specifications 66 yuan / square meter, 4mm specifications 88 yuan / square meter, 5mm specifications 110 yuan / square meter, 6mm specifications 130 yuan / square meter, 7mm specifications 150 yuan / square meter
- Q:Who knows, how is the glass reinforced septic tank connected with the municipal pipe?
- If a glass fiber reinforced plastic outlet pipe is reserved, a new sewage inspection well is installed at the pipe end, and then a sewage pipe is installed to connect the reserved manhole of the municipal sewage pipe.
- Q:How long is the service life of glass fiber reinforced plastic pipes?
- Glass fiber reinforced plastic grille can reduce power consumption and simplify management. Galvanized grille plate adopts high efficiency and low resistance water collecting device, floating water rate is less than 0.001%, environmental protection is the best. The galvanized grating plate has the advantages of advanced structural design, optimum matching of gas and water, and sufficient heat exchange, with the same level in foreign countries and superior output. The company has a realistic, innovative research team. The galvanized grille fan adopts a tensile type of strong wind blade and long space, which is more stable when the fan is running, thereby reducing noise and greatly improving the cooling efficiency. Successively in Shanghai, Guangdong, long-term and domestic famous universities, research institutes cooperation. Hebei, Qingdao and Beijing have additional production bases and service liaison points. Willing to work with new and old customers to create a beautiful today, Chinese and foreign.
- Q:Where are the advantages of FRP pipes? Long life?
- AntifoulingThe pipe surface using unsaturated polyester resin, so the surface is clean and smooth, not by sea or sewage in a shell, fungi and other microbial contamination of borers, so increasing roughness, reduce cross section, increase maintenance costs. No such pollution, long-term use clean as before.
- Q:A basic overview of FRP pipes
- FRP pipes are made of resin (feed water, food grade resin), glass fiber and quartz sand as raw materials and made by special process.
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