EN 10255 PIB

Tianjin Lefin Industrial Co., Ltd yog ib qho ntawm cov tuam ntxhab thiab cov muag khoom ntawm en 10255 yeeb nkab hauv Suav teb. Thov koj xav tias dawb mus yuav cov khoom zoo en 10255 yeeb nkab los ntawm peb lub hoobkas. Kev pabcuam zoo thiab tus nqi tsim nyog muaj.

EN 10255 yog cov txheej txheem kev lag luam nyob sab Europe uas qhia txog cov kev xav tau rau cov hlau tsis yog - alloy steel raj tsim nyog rau vuam thiab threading. Cov kav dej no tau siv dav rau kev thauj mus los ntawm cov kua dej thiab kev siv cov qauv hauv qab qis mus rau nruab nrab siab.

Nov yog cov ncauj lus kom ntxaws txog nws qhov tseem ceeb:

Full Title: Tsis yog -alloy steel tubes haum rau vuam thiab threading - Kev xa khoom xa tuaj.

Tam sim no Version: Qhov tseeb version yog EN 10255: 2015, uas hloov pauv cov ntawv ua ntej EN 10255: 2004 thiab EN 10255:2004+A1:2007 .

Evolution: Cov qauv no tau hloov zuj zus los ntawm tus qauv British BS 1387: 1985 thiab tau sib haum xeeb raws li cov qauv European.

Scope: Nws siv rau ncig seamless thiab welded steel hlab nrog teev sab nraud diameters xws li10.2 hli mus rau 165.1 hli(xws li xov qhov ntau thiab tsawg ntawm 1/8 nti mus rau 6 nti). Cov raj no feem ntau yog npaj rau kev xa cov kua dej (xws li dej, roj, thiab chav dej) hauv qis - lub tshuab siab thiab tsis yog - thauj khoom - cov kabmob cov khoom siv.

1. Dimensions thiab Classification

Tubes nyob rau hauv tus qauv no feem ntau muab faib ua series raws li phab ntsa thickness:

Nruab nrab Series (M): Cov phab ntsa nyias nyias, siv rau kev thauj cov dej tsis tshua muaj -.

Hnyav Series (H): Phab ntsa tuab, haum rau siab dua - cov ntawv siv siab lossis cov khoom siv tshuab.

Lub teeb Series (L): Hais txog qee cov ntaub ntawv, nrog cov phab ntsa nyias nyias rau cov ntawv thov qhov hnyav yog qhov kev txhawj xeeb.

Dimensional tolerances yog tswj nruj me ntsis, piv txwv li, sab nraud txoj kab uas hla yog feem ntau nyob rau hauv±0.75%rau±1%​ .

2. Khoom thiab Mechanical Properties

Common Steel Qib: S195Tyog qib raug.

Tshuaj muaj pes tsawg leeg: Cov yam ntxwv qis- cov ntsiab lus carbon (Max Carbon: 0.20%-0.24%) kom ntseeg tau zoo weldability thiab threading kev ua tau zoo. Lwm cov ntsiab lus kuj tseem tswj tau (xws li Manganese Tsawg dua lossis sib npaug li 1.40%, Phosphorus Tsawg dua lossis sib npaug li 0.035%-0.045%, Sulfur Tsawg dua lossis sib npaug li 0.030%-0.045%).

Mechanical Properties:

Upper Yield Strength (ReH):Ntau dua lossis sib npaug li 195 MPa​ .

Tensile zog (Rm): 320-520 MPa .

Elongation (A): Ntau dua lossis sib npaug li 20% - 25%.

3. Kev kho deg thiab kev ua tiav tiav

Cov raj muaj nyob nrog ntau qhov chaw tiav thiab kev npaj kawg kom haum rau cov kev xav tau sib txawv:

Kev kho saum npoo: Cov kev xaiv muaj xws li dub (liab liab qab), kub-dip galvanizing (rau corrosion resistance), painting, thiab varnishing .

Xaus Xaus: tuaj yeem muab tau raws li Plain Ends (rau vuam), Screwed Ends (xov), los yog Screwed thiab Socketed (S&S) kom yooj yim sib koom.

Cov txheej txheem ntau lawm suav nrog cov kauj ruam tseem ceeb xws li kev xaiv cov khoom siv raw, tsim, vuam (rau welded raj), kho cua sov, thiab ua kom tiav. Cov kev tswj xyuas qhov tseem ceeb muaj xws li:

Kev ntsuas siab: Txhua lub raj tau txais kev ntsuas hydrostatic lossis pneumatic siab ntawm qhov tsawg kawg nkaus ntawm 1.5 npaug ntawm kev ua haujlwm siab.

Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT): Welded seams raug tshuaj xyuas siv txoj kev zoo li ultrasonic lossis radiographic kuaj.

Daim ntawv pov thawj: Cov khoom lag luam tuaj yeem nrog cov ntawv pov thawj xeem raws li EN 10204. Rau EU kev ua lag luam, CE kos npe raws li Kev Tswj Xyuas Khoom Siv Khoom Siv (CPR) feem ntau yuav tsum tau, ua raws li cov ntawv pov thawj tshwj xeeb (xws li Module 3 lossis 4).

TS EN 10255 Cov kav dej muaj ntau yam thiab siv thoob plaws ntau qhov kev lag luam:

Kev tsim kho: Kev siv dej, kev tso dej, kev xa hluav taws xob hauv cov tsev, thiab kev txhawb nqa cov qauv.

Kev thauj kua dej: Tsawg-lub tshuab siab rau dej, roj, cua, thiab chav; kuj tseem siv tau rau hauv kev tua hluav taws.

Kev lag luam: Cov ntawv thov hauv cov roj thiab roj (tsis yog- siab / qis- siab), tshuaj lom neeg (rau cov khoom tsis yog- corrosive media), thiab HVAC sectors .

Lwm yam kev siv: Agricultural irrigation, hluav taws xob conduit tiv thaiv, thiab scaffolding.

Kuv vam tias qhov kev piav qhia dav dav no yuav pab tau. Yog tias koj muaj lus nug tshwj xeeb, xws li hais txog ib daim ntawv thov lossis kev sib piv nrog lwm cov qauv, thov koj xav nug.