ASTM A 234, ASTM A234, ASTM A 234txheem steelcov yeeb nkab fittingstau siv dav hauv cov kav dej, nws suav nrog cov khoom siv carbon steel thiab alloy steel.

Dab tsi yog steel yeeb nkab fittings?
Hlau yeeb nkab haum yog ua los ntawm carbon steel los yog alloy steel yeeb nkab, daim hlau, profiles, mus rau ib tug tej yam uas yuav ua tau ib tug muaj nuj nqi (Hloov cov kua dej kev taw qhia los yog tus nqi) nyob rau hauv pipeline systems. Feem ntau cov fittings no suav nrog lub luj tshib (45 lossis 90 degree khoov), tee, reducer (concentric lossis eccentric reducer), hla, lub kaus mom, lub txiv mis, flanges, gasket, studs thiab lwm yam.

Rau cov hom phiaj kev lag luam, hauv cov kav dej feem ntau peb yuav tsum tau hloov cov kev taw qhia kis; Kho cov kua dej (roj thiab roj, dej, slurry) txaus tus nqi; Qhib lossis kaw cov kav dej, thiab lwm yam. Yog li kom ua tiav cov haujlwm no, cov yeeb nkab steel yuav raug siv.

ASTM A234 WPB yog dab tsi?
ASTM A234 yog Standard Specification rau steel yeeb nkab fittings xws li carbon steel thiab alloy steel khoom rau nruab nrab thiab kub kev pab cuam. Nws npog steel fittings ntawm seamless thiab welded hom. Steel Pipe fittings yog siv nyob rau hauv siab pipelines thiab nyob rau hauv siab nkoj fabrications. Cov khoom siv fittings no muaj cov hlau tua, forgings, tuav, daim hlau, seamless los yog HFW (fusion welded) yeeb nkab khoom, nrog rau cov hlau muab tub lim ntxiv.

ASTM A234 suav nrog wrought carbon steel thiab alloy steel fittings ntawm seamless thiab welded kev tsim kho los ntawm kev kho tshiab ntawm ASTM B16.9, B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, thiab MSS -SP-97. lwm.

Raws li peb paub, ASTM A234 steel yeeb nkab fittings yog siv nyob rau hauv siab piping thiab nyob rau hauv siab hlab ntsha fabrication, rau cov kev pab cuam ntawm nruab nrab thiab siab kub. Cov khoom siv fittings hauv tus qauv no muaj cov hlau tua, forgings, tuav, daim hlau, seamless los yog fusion-welded tubular khoom nrog muab tub lim ntxiv.
Nyob rau hauv tus qauv no nws npog cov specification ntawm lub luj tshib, tees, reducers, lub kaus mom thiab ntoo khaub lig, nws feem ntau txais yuav pob tw vuam xaus.

ASTM A234 steel yeeb nkab fittings qhov ntev
Cov Qauv: ANSI / ASME B16.9, B16.28, MSS-SP-43.
Txoj kab uas hla sab nraud: 1/2 "mus rau 48"
Thickness Range: SCH 10, sch 20, SCH 40, SCH STD, SCH 80, SCH XS, SCH 160, SCH XXS thiab lwm yam.
Hlau yeeb nkab fittings manufacturing hom nyob rau hauv forged, threaded, taub qab weld, thiab seamless.

Qib hauv ASTM A234:

ASTM A234 specification muaj ntau qib, xws li WPB, WPC, WP5, WP9 WP11, WP12, WP22, WP91 thiab lwm yam.
Nyob rau hauv cov qauv no Qib WPB yog cov khoom siv feem ntau siv rau cov kav dej nruab nrab thiab siab kub. W txhais tau tias weldable, P txhais tau tias siab, B yog qib b, xa mus rau qhov tsawg kawg nkaus tawm los.
Cov khoom siv raw ntawm ASTM A234 WPB steel yeeb nkab fittings yuav yog los ntawm cov yeeb nkab steel, xws li ASTM A106 Gr.B thiab C. Tsis tas li ntawd los ntawm steel phaj, xws li ASTM A285 Gr.C, ASTM A516 Gr 70, ASTM A572 thiab lwm yam.

ASTM A234 WPB steel yeeb nkab haum tshuaj thiab txhua yam nta:
1) Qib WPB fittings ua los ntawm cov kav hlau lossis cov phaj siab tshaj C yog 0.35%.
2) Forging fittings Carbon ntsiab lus 0.35% siab tshaj plaws thiab Silicon cov ntsiab lus 0.35% siab tshaj, tsis muaj yam tsawg kawg nkaus.
3) Rau txhua qhov txo qis ntawm 0.01 ntawm cov ntsiab lus Carbon, Manganese cov ntsiab lus siab tshaj plaws nce 0.06%, mus txog qhov siab tshaj 1.35% rau Mn.
4) Copper, Nickel, Niobium thiab Molybdenum cov ntsiab lus yuav tsum tsis pub tshaj 1.00%.
5) Niobium + Molybdenum yuav tsum tsis pub tshaj 0.32%.

Cov yam ntxwv ntawm ASTM A234 WPB yeeb nkab fittings:
Tensile zog 60,000 pis 415 Mpa
Yield zog 35,000 psi 240 Mpa
Kev ntsuas siab: 150LBS, 300LBS, 600LBS, 900LBS, 1500LBS, 2000LBS, 3000LBS txog 9000LBS.

ASTM A234 suav nrog seamless thiab welded yeeb nkab fittings:
Rau cov seamless steel yeeb fittings yog hais txog cov khoom siv raw khoom los ntawm seamless steel kav thiab cov raj; Yog li cov welded steel yeeb nkab fittings npog cov fittings raw khoom los ntawm welded steel kav.
Nws yuav tsum raug sau tseg tias,
ASTM A234 specification tsis npog cam khwb cia vuam fittings los yog fittings machined los ntawm castings.

Steel yeeb nkab fittings manufacturing txheej txheem:
Cov txheej txheem tsim khoom rau cov yeeb nkab fittings suav nrog kev ua haujlwm forging thiab shaping. Raws li kev nias, rauj, tho, extruding, chim siab, dov, dabtsi yog khoov, fusion vuam thiab machining. Los yog cov txheej txheem ntawm kev sib xyaw ua ke ntawm ob lossis ntau dua ntawm cov haujlwm no.

Thaum lub sij hawm tsim steel yeeb nkab fittings, cov haujlwm hauv qab no yuav tsum raug sau tseg:
1) Kev puas tsuaj tsis zoo, vuam tsis zoo yuav tsum tsis tsim.
2) Tom qab shaping los yog tsim cov fittings nyob rau hauv ib tug haum qhov kub thiab txias, nws yuav tsum tau txias nyob rau hauv ib tug tsim nyog ib puag ncig rau qhov kub thiab txias uas qis dua qhov tseem ceeb. Thiab tsis muaj qhov tsis xws luag yuav tsum tau ua thaum lub caij txias. Qhov cua txias ceev yuav tsum tsis txhob ntau tshaj qhov cua.
3) Kev tshuaj xyuas tsim nyog yuav tsum tau ua tom qab kev tsim khoom. (Hydrostatic test, hardness test, tensile test thiab lwm yam)

Alloy steel yeeb nkab fittings qib hauv ASTM A234

Lub alloy steel yeeb nkab haum yog fabricated nrog alloy ntsiab nyob rau hauv xws li Chrome, Molybdenum, Nickel alloy, Hastelloy alloy, Monel, Inconel, thiab lwm yam. Kom tau txais ib tug siab dua kev ntsuam xyuas, zoo zog, zoo corrosive kuj, thiab ntev kav ntev. Nws yog dav siv nyob rau hauv cov roj thiab roj pipelines, tshuaj industries, fais fab nroj tsuag, nuclear fais fab chaw, thiab nyob rau hauv cov neeg rau zaub mov tej yam kev mob.

Alloy steel yeeb nkab fittings suav nrog buttweld fittings, alloy steel ntev radius khoov, alloy steel forged fittings thiab lwm yam.
Cov alloy steel buttweld fittings txais ASTM A234 tus qauv, muaj WP1, WP5, WP11, WP12, WP22, WP23 thiab WP91 qib. Qib kawm hauv CL1, CL2, CL3.

ASTM A234 alloy steel yeeb nkab fittings suav nrog alloy steel lub luj tshib ntev thiab luv luv, alloy steel eccentric & concentric reducer, alloy steel caps & crosses, alloy steel couplings, alloy steel tees, alloy steel txiv mis, alloy steel caps thiab lwm yam ntaub ntawv. Nws muaj seamless, welded thiab fabricated hom.
Rau alloy steel forged fittings, nws txais yuav ASTM A182 tus qauv hais txog steel yeeb nkab flanges. Cov khoom siv hauv ASTM A182 F1, F5, F9, F11 Class 1, F12 Class 1, F22 Class 1 ETC.

Tshuaj muaj pes tsawg leeg

Tensile Requirements