Acciaio inox laminato a caldo ASTM A249 En10217- 7304 304L 316 316L Tubo senza giunture in acciaio inox laminato a freddo tubo rotondo per macchina Parti

Model No.
304 316 304L 316L
uso
Trasporti mediante condotte, caldaia tubi, Idraulico / Automobile del tubo, Olio / Gas Drilling, Aliment / bevande / Latticini, Macchinari per l′industria, Chemical Industry, Minerario, Costruzione & Decorazione, Special Purpose
Forma Sezione
Arrotondare
tempo di consegna
15 giorni
certificazioni
sgs;bv;api, ce et
metodo di pagamento
tt, l/c.
Pacchetto di Trasporto
Bending
Specifiche
as requirement
Marchio
HYX
Origine
China
Codice SA
7304419000
Capacità di Produzione
30000mt/Month
Prezzo di riferimento
$ 2,106.00 - 2,250.00
contattaci

Descrizione del Prodotto

Stainless steel seamless pipe is a kind of hollow profile long steel without joint around. For thickness, thick wall thick products, economical, the thinner the wall thickness, the higher the processing cost, and has good heat resistance and corrosion resistance. The corrosion resistance of stainless steel seamless tube depends on alloying elements contained in steel. Chromium is the basic element that makes stainless steel resistant to corrosion. When the chromium content in steel reaches about 12%, chromium reacts with oxygen in corrosive media, forming a very thin oxide film (self-passivation film) on the steel surface, which can prevent further corrosion of the steel matrix. Stainless steel seamless tube in addition to chromium, commonly used alloy elements and nickel, molybdenum, titanium, niobium, copper, nitrogen, etc., to meet the various uses of stainless steel structure and performance requirements. Hot Rolled ASTM A249 En10217-7304 304L 316 316L Stainless Steel Seamless Pipe Stainless Steel Cold Rolled Round Tube for Machine Parts
Description of Stainless Steel Pipe:
Product Name   Stainless Steel Tube, Stainless Steel Pipe
Production Size Outer Diameter.6-2000 mm
Thickness:0.1-100 mm (Size can be customized. Lenath:≤12000mm or as per customer request
Standard ASTM A213.ASTM A312.
Grade 200series:201.202.202cu.204
300series301302.303 304 304L309.309s 310.310S 316.316L.316T1.317L321.347
400series:409.409L.410 420.430.431.439.440.441.444
Others:2205.2507.2906.330.660.630.651817-4ph,17-7ph, S318039 904L.etc
Dupiex stainless steel:S22053.S25073.S22253.S31803.S32205.S32304
Special Stainless Steel:904L.347/347H.317/317L.316T1.254Mo
 
Technology Cold Rolled Hot Rolled
Length   100~12000 mm (All can be customized as customer's requirements)
Thickness Cold Roll:0.1~3mm (All can be customized as customer's requirements
 Hot Roll:3~100 mm(All can be customized as customer's requirements)

1.Hot Rolling (extruded seamless steel tube) : round tube billet → heating → perforation → three-roll cross rolling, continuous rolling or extrusion → tube stripping → sizing (or reducing) → cooling → straightening → water pressure test (or defect detection) → marking → storage
The raw material of seamless tube rolling is round tube billet, round tube embryo is cut by cutting machine and processed billet with growth degree of about 1 meter, and sent to furnace for heating by conveyor belt. The billet is fed into a furnace to be heated at about 1200 degrees Celsius. The fuel is hydrogen or acetylene. The temperature control in furnace is the key problem. After the round tube billet comes out of the oven, it must go through the pressure punch. The most common puncher is the cone roll puncher, which has high production efficiency, good product quality, large diameter expansion and can wear a variety of steel. After perforation, the round tube is successively rolled by three rolls, cross - rolled, or extruded. After extrusion, take off the pipe and size. The sizing machine rotates into the steel embryo through the conical drill bit at high speed to drill and form the steel tube. The inner diameter of steel pipe is determined by the outer diameter length of drill bit of sizing machine. After sizing, the steel pipe enters the cooling tower and is cooled by spraying water. After cooling, the steel pipe is straightened. After straightening, the steel tube is sent by conveyor belt to metal flaw detector (or water pressure test) for internal flaw detection. If there are cracks, bubbles and other problems inside the steel pipe, it will be detected. Steel pipe quality inspection through strict manual selection. After quality inspection, paint on the pipe number, specification, production batch number and so on. And by the crane into the warehouse.
2. Cold Drawing (rolling) Seamless Steel Tube: round tube billet → heating → perforation → heading → annealing → pickling → oiling (copper plating) → multi-pass cold drawing (cold rolling) → blank tube → heat treatment → straightening → water pressure test (flaw detection) → marking → storage.
The rolling method of cold-drawn (rolled) seamless steel tube is more complicated than that of hot-rolled (extruded) seamless steel tube. The first three steps of their production process are basically the same. The difference starts from the fourth step, after the round tube blank is hit empty, it should be hit and annealed. After annealing, special acidic liquid is used for pickling. After pickling, oil is applied. This is followed by a number of cold-drawn (cold-rolled) rebillet tubes, specialized heat treatment. After heat treatment, it is treated with steel pipe cooling process.
Hot Rolled ASTM A249 En10217-7304 304L 316 316L Stainless Steel Seamless Pipe Stainless Steel Cold Rolled Round Tube for Machine Parts
FAQ
1.Q:I want to get samples. What can I do?
   A: We really appreciate to send you samples to test our quality, and samples will be free charge for you but the express mail charge, you could bear it, we will refund this charge after get your formal order.

2.Q:What payment methods do you accept?
   A:We accept payment by T/T in advance, L/C. Please inform us your name(also full name), address,phone, zip code etc. infos. Products will be delivery as soon as possible after payment confirmed.Thanks so much.

3.Q:What express logistics do you support?
   A: We support national port, sea, air, and train transportation and international DHL logistics.

4.Q:How can I trust you,how can you guarantee the quality of your goods?
   A:Dear, you can send us a video, and come to visit our office and factory directly, I can show you the goods you want, we also consider for you, so we support LC payment, we not only have Chouzhou Banks, Citibank, and the trustworthy Bank of China .

 

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