En 10217-1 Pdf

[Skye Severy]

TheEuropean norm EN 10217-1 specifies the requirements for unalloyed carbon steel welded round tubes for use at room temperature. The tubes, available in different thicknesses, are intended for use at room temperature and in sprinkler or fire prevention systems.

The EN 10217-1 standard is the European standard for welded pressure pipes, it governs the technical requirements for carbon steel tubes. This standard is suitable for welding carbon steel tubes which having specified room temperature properties and rated pressures.

The essential requirements of this standard are minimum yield point strength and tensile strength, elongation, weldability, Impact values, non-destructive test, etc. This standard is widely used in the construction of pressure vessels and piping systems in the oil and gas, petrochemical, and Power industries.

The weld is the more important area of the pipe, so there must be no cracks around the weld. And it is not permitted to make any repairs to formed pipe welds. If repairs to welds are allowed in the standard document, they should be strictly enforced in accordance with the standard to ensure the integrity of the pipe.

The surface of the pipe is also regulated, first of all, there must not be any internal defects and the surface of the pipe must be smooth and free of cracks. If there is a coating, the retort is not hungry for air bubbles and the layers are uniform.

Pipes are usually marked along their length with the name of the manufacturer, the standard (EN 10217-1), the material grade, the size, the wall thickness and sometimes information about the particular application or special conditions they fulfill. These markings are essential to ensure that the right pipe is used for the right application!For pipes with an outside diameter of more than 51 mm, the pipe marking can be affixed to the box or to the bundle, or a label can be used instead.

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The weld area of EN 10217-1 pipe is a critical component that must be free from cracks, lack of fusion, and lack of penetration. Any repairs to the weld seam of EW and HFW tubes are not permitted. Repairs to the weld seam of SAW tubes shall be allowed if done by an agreed documented procedure. This is to ensure the structural integrity of the pipe and to prevent any potential leaks.

The EN 10217-1 pipe has specific requirements for its surface to be considered usable. The tube must be free of any external or internal surface defects that can be detected by a visual examination of the surfaces. Additionally, the finish and surface condition should not be such that any surface imperfections would require dressing. However, if it is necessary to dress the surface imperfections, they can only be ground or machined down. The wall thickness in the dressed area must not fall below the specified minimum wall thickness after dressing. Finally, all dressed areas must blend smoothly into the contour of the tube without any visible imperfections.

For tubes with an outside diameter of over 51mm, the marking on the tube may be replaced by marking on a label or tag which is securely attached to the bundle or box. This label or tag shall also identify the tube diameter, wall thickness and length range. The manufacturer may also include additional markings as needed for identification. This ensures that all tubes can be properly identified and traced back to their manufacturer.

EN 10217-1 P235TR1 welded steel tubes are used for high temperature service applications. It is a carbon non-alloy steel constructed for primary forming into wrought products. Its specified properties are appropriate for the normalized condition. 1.0254 is the EN numeric designation for this material. P235TR1 is the EN chemical designation.

P235TR2 Electric Welded Alloy Steel tubes have a moderately high ductility and a moderately low tensile strength among wrought carbon or non-alloy steels.

EN 10217-1 P235TR1 are reheated and furnished in full annlealed, isothermal annealed or normalised quenched and tempered condition. It has minimum yield strength of 235 Mpa.

1.0254 p235tr1 boiler tube is made of a carbon, chrome, copper, manganese, silicon, sulfur, molybdenum, nickel, niobium, phosphorus, titanium and vanadium.

1.0254 st 37.0 SAW and welded round tubes are used in the equipment of engineering, container and pipe construction as well as mechanical engineering.

EN 10217-1 P235TR2 are intended for use in systems for both pressure equipment and pipelines. It is mainly used in boiler, transportation of oil, natural gas, gas, pressure pipe, pipe for ship, structure pipe etc. The alphanumeric TR2 is for qualities with specified aluminum element, impact properties and specific inspection and testing requirements.

1.0254 st 37.0 submerged arc welded non-alloy steel tubes is a kind of material for boiler and pressure vessel steel. It has elevated content of carbon where it is heat-resistant by means of excellent bending, corrosion resistance, long-lasting organizational stability, welding performance, high strength, cold deformation ability is exceptionally good. It is characterized by a minimum yield strength of 170-230MPa.

Tibnor er blandt Danmarks og nordens strste leverandrer af stl til erhverv. Foruden vores brede udvalg af stl tilbyder vi ogs en lang rkke services, der kan tilpasses vores kunders eftersprgsel. For eksempel tilbyder vi forskellige bearbejdningstjenester som savning, bukning, boring, skring og spaltning, ligesom vi ogs tilbyder slyngrenset og primet stl.

Som materiale defineres stl ved sit legeringsindhold, sin struktur og sin renhed. Selve legeringsindholdet bestemmer stltypen og dets karakteristika, herunder hrdbarhed, svejsbarhed, korrosionsbestandighed og varmebehandlingsegenskaber.

Herudover er stlets kvalitet et udtryk for dets renhed og henviser til, i hvilket omfang man har fjernet unskede slaggeindeslutninger og legeringselementer. Ligeledes refererer stlkvaliteten til, hvor snver en tolerance der er for indholdet af de nskede legeringselementer.

Bemrk venligst, at dette langt fra er en udtmmende liste over de forskellige stlkvaliteter i vores sortiment. Er du p udkig efter en srlig stlkvalitet, henviser vi derfor til vores samlede produktoversigt her.

Nr man snakker om varm- og koldvalset stl, refererer man imidlertid til den temperatur, stlet har, nr det presses gennem valserne til den nskede tykkelse. Ved varmvalsning holdes temperaturen over omkrystallisationspunktet, mens den ved koldvalsning holdes under dette punkt.

Hvor koldvalset stl har en glat og gr finish og en stor tolerance i stlets dimensioner, har varmvalset stl en mere ru og blgr overflade. Typisk vil der vre forskel i priserne p de to typer, da koldvalset stl krver mere bearbejdning, og dermed er forbundet med en strre udgift.

Nr jern legeres, ndres de kemiske, mekaniske og fysiske egenskaber, og selv de mindste ndringer og tilstninger kan have afgrende indflydelse p stlets egenskaber. Efter EN10020 har stl et kulstofindhold under 2%. ger man mngden af kulstof til eksempelvis 2,5 %, er der ikke lngere tale om stl, men i stedet om stbejern.

Ved lavt legeret stl er den samlede legeringsmngde under 5%, mens den ved hjtlegeret stl er mere end 5%. Ved ulegeret stl udgr legeringsgrundstofferne mindre end 1,5%, hvoraf kulstofindholdet typisk udgr 0,8 %.

Som udgangspunkt dkker begreberne forzinket stl og galvaniseret stl over det samme - nemlig at stl har gennemget en proces, hvor det er blevet overfladebehandlet med zink. Dog er der forskel p mden, hvorp denne proces udfres, og som har betydning for bde prisen og holdbarheden i miljer med get korrosionsrisiko.

Man skelner imidlertid mellem el-forzinket og varmforzinket stl. El-forzinket stl fremstilles ved, at stlet nedsnkes i et zinkar, hvorefter der sluttes strm til stlet. Dette bevirker, at zinket stter sig som et tyndt lag p overfladen.

Ved varmforzinket stl snkes stlet derimod i et kar med smeltet zink, der har en temperatur p 460 C. Dette bevirker, at stlet fr et tykkere beskyttelseslag end ved elektrogalvanisering, og varmforzinket stl er derfor mere modstandsdygtigt overfor rust.

\nAf denne grund br man anvende el-forzinket stl i indendrs eller isolerede miljer, mens varmforzinket stl egner sig til udendrs brug.

Det er imidlertid vsentligt at have for je, at galvaniseret og forzinket stl ikke er det samme som rustfrit stl. Ved det frste er der udelukkende tale om en overfladebehandling, mens der ved rustfrit stl er tale om en specifik stltype, hvis legering bestr af nikkel og minimum 12% chrom, der gr det modstandsdygtigt overfor korrosion.

Nr det er sagt, er der stadig risiko for, at stl med dette legeringsindhold vil korrodere over tid, hvis det eksempelvis anvendes i vand eller bliver udsat for salt og syre. I disse miljer br man i stedet vlge syrefast stl.

Til syrefast stl er der tilfjet mindst 2% molybdn, der gr stlet srligt egnet til anvendelse i sure og iltfattige omgivelser og i sammenhnge, hvor stlet risikerer at blive udsat for saltholdig luft eller syreholdige vsker.

I vores sortiment finder du syrefast stl i kvaliteterne EN 1.404, EN 1.4404-316/316L samt EN 1.4571 316Ti. Produkter i disse kvaliteter kan bestilles online via vores kundeportal eller telefonisk via vores salgsafdeling.

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