20 # carbon steel luj tshib hais txog lub hauv paus hlau muaj 20 # seamless steel yeeb nkab tsim lub luj tshib, carbon steel muaj kev ua tau zoo thiab kev lag luam, hauv cov kav dej siv lub luj tshib feem ntau siv. Lwm cov khoom siv carbon steel feem ntau yog 20 #, A3, Q235, Q235A, Q235B, ASTM A234WPB, A105, thiab lwm yam. 20 # carbon steel luj tshib nyob rau hauv lub raj xa dej yog hloov cov kev taw qhia ntawm cov yeeb nkab fittings, kua pipeline engineering siv feem ntau siv lub luj tshib 45 degree, 90 degree, 180 degree peb, ntxiv rau raws li qhov xav tau ntawm cov kev cai project 60 degree thiab lwm yam cov luj tshib uas tsis yog tus qauv. Txoj kev sib txuas ntawm lub luj tshib muaj xws li: ncaj pob tw weld, flange kev twb kev txuas, threaded kev twb kev txuas, thiab qhov (socket) txuas. Cov txheej txheem ntawm lub luj tshib tuaj yeem muab faib ua: vuam lub luj tshib, lub luj tshib swaging, thawb lub luj tshib, lub luj tshib, thiab lwm yam. Carbon steel luj tshib yog ib tug dav siv yeeb nkab haum thiab yog dav siv nyob rau hauv chemical kev lag luam, kev tsim kho, dej mov, kua, roj av, lub teeb thiab hnyav kev lag luam, tub yees, huv si, kav dej, hluav taws xob tiv thaiv, hluav taws xob fais fab, aerospace, shipbuilding thiab lwm yam yooj yim tej yaam num. .
Cov khoom siv feem ntau siv rau lub luj tshib: (20 #, A3, Q235, Q235A, Q235B, 20G, 16Mn, ASTM A234WPB, thiab lwm yam);
20# carbon steel luj tshib tau muab faib raws li nws lub vojvoog ntawm curvature: nws tuaj yeem muab faib ua lub luj tshib ntev thiab lub luj tshib luv luv. Lub luj tshib ntev yog hais txog sab nraud ntawm lub raj uas nws lub vojvoog ntawm curvature sib npaug li 1.5 npaug, uas yog, R=1,5D. Lub luj tshib luv luv txhais tau hais tias nws lub vojvoog ntawm curvature yog sib npaug rau sab nraud ntawm lub raj, piv txwv li R=1.0D. (D yog txoj kab uas hla ntawm lub luj tshib, R yog lub vojvoog ntawm curvature).
Raws li qib siab: muaj txog kaum xya hom, uas zoo ib yam li Asmeskas cov qauv yeeb nkab, suav nrog: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, Sch100, Sch120, Sch140, Sch160, XXS; Ntawm lawv, feem ntau siv yog STD thiab XS.
20 # Carbon steel luj tshib tuaj yeem muab faib ua lub luj tshib, lub luj tshib, ob lub luj tshib, flange luj tshib, txo lub luj tshib, dull lub luj tshib, lub luj tshib sab hauv thiab sab nraud, lub luj tshib swaging, thawb hauv lub luj tshib, lub luj tshib, lub luj tshib, lub luj tshib sab hauv. hlau luj tshib, thiab lwm yam.
Tuam Tshoj Pipe Fittings Manufacturing Standards:
GB/T12459-2017 steel taub qab welded seamless yeeb nkab fittings
GB / T13401-2017 taub qab welded yeeb nkab fittings ua los ntawm steel phaj
SH/T3408-2012 steel taub qab welded seamless yeeb nkab fittings
SH/T3409-1996 taub qab welded yeeb nkab fittings ua los ntawm steel phaj
SH/T3410-2012 Forged Steel Socket Welded Pipe Fittings
GB/T10752-1995 Marine steel welded yeeb nkab
GB/T12772-1999 Yooj yim interface cam khwb cia hlau kav thiab fittings rau cov kua
American Pipe Fitting Manufacturing Standards:
ASME / ANSI B16.9 Lub Hoobkas Ua Seamless Steel Yeeb Nkab Lub Taub Hau Welded Yeeb Nkab Fittings
ASME / ANSI B16.11 Socket Welded thiab Threaded Yeeb Nkab Fittings
ASME / ANSI B16.28 Steel Butt-Weld Me Radius Luj Tshib thiab Tig Khoov
ASME / ANSI B16.5 Yeeb Nkab Flanges thiab Flange Fittings
MSS SP-43 Forged Stainless Hlau Butt Welded Yeeb Nkab Fittings
MSS SP-83 qhov (socket) vuam thiab ntsia hlau txuas
MSS SP-97 Ib Lub Taub Hau Taub Hau Rau Qhov (socket Weld), Threaded thiab Butt Weld Ends
