Wenzhou Kaixin Kaxin Metal Co., LTD
Edelstol Pipe / Edelstol Tube
Stainless Steel pipe Manufactuer Process
A K). Klassifikatioun duerch Produktiounsmethod:
(1) Seamless Pipes – kale Crediten, extrudéiert Pipes, kale rullen Péng. Fabrice Prozess: Schueden>Inggot>Rullend>Sawing>Peeling>Piercing>Annealing>
Pickling>Ash application>Cold drawing>Cutting>Pickling>Storage
The characteristics of seamless steel pipes: It is not difficult to see from the above process flow: firstly, the thicker the wall thickness of the product, the more economical it is
The thinner the wall thickness, the greater its practicality and practicality, the higher its processing cost will be; Secondly, the process of the product determines its limited performance,
General seamless steel pipes have low accuracy: uneven wall thickness, low surface brightness inside and outside the pipe, high sizing cost, and difficult to spot and black spots on the inner and outer surfaces
remove; Thirdly, its detection and shaping must be processed offline. Therefore, it embodies its advantages in high pressure, high strength, and mechanical structural materials
Superiority.
Manufacturing of seamless steel pipes: Seamless steel pipes are made from steel ingots or solid billets that are perforated into tubes, and then hot rolled, cold rolled, or cold drawn.
The specifications of seamless steel pipes are expressed in millimeters of outer diameter * wall thickness. Seamless steel pipes are divided into two categories: hot-rolled and cold-rolled (drawn) seamless steel pipes. Hot rolled seamless pipe outer
The diameter is generally greater than 32mm, with a wall thickness of 2.5-75mm. The diameter of cold-rolled seamless steel pipes can reach 6mm, and the wall thickness can reach 0.25mm. The outer diameter of thin-walled pipes
It can reach a wall thickness of 5mm and less than 0.25mm, with higher dimensional accuracy in cold rolling compared to hot rolling. Hot rolled steel pipes are delivered in hot rolled or heat treated condition; cold rolling
Stainless steel Tube/Pipe Delivery Condition
Delivered in heat treated condition.
- Hot rolling (extruded seamless steel pipe): Round tube billet → Heating → Piercing → Three roll oblique rolling, continuous rolling or extrusion → Tube detachment → Sizing
(or reducing) → cooling → straightening → hydraulic test (or flaw detection) → marking → warehousing
- Cold drawn (rolled) seamless steel pipe: round tube blank → heating → perforation → heading → annealing → acid pickling → oil coating (copper plating) → multiple
Pass cold drawing (cold rolling) → blank tube → heat treatment → straightening → water pressure test (flaw detection) → marking → storage
Welded Stainless Steel Tube Manufactuer Process
(2) Welded pipe: Welded steel pipe, abbreviated as welded pipe, is a steel pipe made by welding steel plates or strips after being rolled and formed by a machine and a mold.
- Steel plate>Splitting>Forming>Fusion welding>Induction bright heat treatment>Inner and outer weld bead treatment>Shaping>Sizing>Eddy current testing>Laser diameter measurement>
Pickling>Storage.
The characteristics of welded steel pipes: It is not difficult to see from the above process flow: firstly, the product is continuously produced online, with thicker walls,
The larger the investment in the unit and fusion equipment, the less economical and practical it will be. The thinner the wall thickness, the corresponding decrease in its input-output ratio
Descending; Secondly, the process of this product determines its advantages and disadvantages. Generally, the welded steel pipe has high precision, uniform wall thickness, and high surface brightness inside and outside the pipe (steel plate
The surface level of the steel pipe determines the surface brightness, and can be arbitrarily sized. Therefore, it embodies its advantages in high-precision, medium and low pressure fluid applications
Economy and aesthetics.
(a) Classification by process – gas shielded welded pipe, arc welded pipe, resistance welded pipe (high-frequency, low-frequency).
(b) Classified by weld seam – straight seam welded pipe, spiral welded pipe.
b: Classified by cross-sectional shape: circular tube, square tube, rectangular tube, elliptical tube
(1) Simple cross-section steel pipes – circular steel pipes, square steel pipes, elliptical steel pipes, triangular steel pipes, hexagonal steel pipes, diamond steel pipes, eight
Angular steel pipes, semi-circular steel circles, others
(2) Complex cross-section steel pipes – unequal hexagonal steel pipes, five petal plum shaped steel pipes, double convex steel pipes, double concave steel pipes, melon geformt Stahl Päifen
Conical Stol Pipes, Korgugéiert Stol Pipes, Kuckt Fall Stol Päifen, others
C ': Klassifikatioun duerch Wandstécker: dënn-walled Stol Päifen:
Déck wandert Stahlpipe:
d: Klassifizéiert duerch Zweck: (1) Zivilzüre ginn an der kreesfërmeger Päifen opgedeelt, rechteckeg Päifen, a Blummen Pipes, déi allgemeng fir Dekoratioun benotzt ginn, Architektur, Struktur, an aner Aspekter;
(2) Industriell Péng: Stol Pipe fir Industriell Piping, Stol Pipe fir allgemeng Piping (drénken Waasserpëscher), Mechanesch Strukturen / Flëssegkeet Liwwerung Päifen
Boiler heat exchange pipes, Liewensmëttel Hygiène Päifen, et cl. Allgemeng a verschiddene Felder vun der Industrie ugewannt, sou wéi petrochemesch, Papermamming, nuklear Energie, Iessen, Gedrénks
Déi pharmazeutesch an aner Industrien hunn héich Ufuerderunge fir Flëssegkeet a Pipellines.
E: Maart Zitatypen fir Edelstahl Pipes: Pipe Blanks, Wolleke Pipes, industriell Péng, an sanitär Päifen
From the perspective of process flow, the differences between the steel pipes classified above are:
- Hygienic grade mirror tube process flow:
Tube blank – inspection – peeling – inspection – heating – perforation – acid cleaning – grinding – lubrication and air drying – welding head——
Cold drawing – solid solution treatment – pickling – pickling passivation – inspection – cold rolling – degreasing – cutting – air drying – internal polishing
——External polishing – Inspection – Identification – Finished product packaging
Sanitary (food grade) leeën Edelstol Päif is widely used in pharmaceutical, Iessen, beer, drinking water, biological engineering, chemical engineering, air purification
Aviation, nuclear industry and other national economic construction are widely used in many fields and industries. Sanitary grade stainless steel pipes for general industrial use Ф 14*1mm
to Ф 200*3mm。 Waste management: Ф 65 * 5 to Ф 100*7
- Industrial Stainless Stee Tube /Pipe Process Flow
Tube blank – inspection – peeling – inspection – heating – perforation – acid cleaning – grinding – lubrication and air drying – welding head——
Cold drawing – solid solution treatment – pickling – pickling passivation – inspection
- Welding Stainless Steel Tube /pipe process flow:
Net ongewéinlech – Niveauing – Endschued a Schweißen – looper – formeg – Schweißen – Ewechhuele vu banneschten an äusseren Wëld Perlen – Virun Kalibratioun--
Induktioun Hëtztbehandlung – Slicéiert a riicht – Eddy current testing – Cutting – Hydraulesch Inspektioun – Pickling – Finale Inspektioun – Verpackungen
F an: Geméiss der Haaptmaterial Kompositiounsphypen: 304, 304L, 316, 316L, 301S, 321, 309S, 2205, 17-4PH, An it Ediot
(Notegéieren: D'Bedeitung fir TP ze addéieren ier de Stahl Pipe Modell tp – Nidderschlag häerzlech Behandlung)
2205 Legowon (US S32305 / S31803) as A Duplex Edelstol Stol besteet aus 22% Chrogium, 3% moybdsum, an an 5-6% Nickel Nitrogen Allloy. Et huet
Héich Stäerkt, Gutt Impakt Zähegkeet, a gutt allgemeng a lokal Resistenz op synergistesch Korrosioun.
Am Verglach mat 316l an 317l astensitesch Edelstol, 2205 Den Alloy huet super Leeschtung an der Korrosioun Resistenz a Krack Resistenz. Et huet
Héich Korrosion Resistenz. Am Verglach mam Ausseretit, it has lower coefficient of thermal expansion and higher thermal conductivity.
Compared with austenitic stainless steel, its compressive strength is twice that of 316L and 317L, and designers can reduce its weight by
The cost is also lower.
17-4PH (C ': 0.04, Nt: 16.5, An: 4.5, Cu: 3.3, MN-: 0.7) alloy is stainless for precipitation, quenching and martensite
Steel, with this grade, has characteristics such as high strength, hardness (up to 3000 C/5000 C), and corrosion resistance. After heat treatment, the product’s
The mechanical properties are more complete, and can reach a compressive strength of up to 1100-1300 mpa (160-190 ksi). This level cannot be used above
At temperatures of 300 0C ' (572 0F) or very low, it has good corrosion resistance to the atmosphere and diluted acids or salts, and its corrosion resistance
The force is the same as 304 an an 430.
An it Ediot 321 constitutes 0Cr18Ni10Ti