Steel Pipe Dimension 3 Yam ntxwv:
Cov lus piav qhia tag nrho rau cov yeeb nkab steel qhov dav suav nrog txoj kab uas hla (OD), phab ntsa tuab (WT), cov yeeb nkab ntev (nquag 20 ft 6 meter, lossis 40 ft 12 meters).

Los ntawm cov cim no peb tuaj yeem suav cov yeeb nkab hnyav, cov yeeb nkab siab npaum li cas tuaj yeem dais, thiab tus nqi ib ko taw lossis ib 'meter'.
Yog li ntawd, yog vim li cas peb ib txwm yuav tsum paub ib tug txoj cai kav loj.

Steel Pipe Dimensions Daim duab

Pipe Schedule Chart unit hauv mm raws li hauv qab no, saib ntawm no rau Pipe Schedule Chart hauv nti.

Dimension qauv rau steel yeeb nkab
Muaj cov qauv sib txawv los piav txog cov yeeb nkab steel loj, OD thiab phab ntsa thickness. Feem ntau yog ASME B 36.10, ASME B 36.19.

Raws li tus qauv specification ASME B 36.10M thiab B 36.19M
Ob leeg ASME B36.10 thiab B36.19 yog cov qauv kev qhia tshwj xeeb rau qhov ntev ntawm cov yeeb nkab steel thiab cov khoom siv.

ASME B36.10M
Tus txheej txheem npog cov txheej txheem ntawm cov yeeb nkab steel qhov ntev thiab qhov ntau thiab tsawg. Cov kav dej no muaj xws li seamless los yog welded hom, thiab siv nyob rau hauv siab los yog tsawg kub thiab siab.
Cov yeeb nkab txawv ntawm lub raj (Pipe vs Tube), ntawm no cov yeeb nkab yog tshwj xeeb rau cov kav dej, cov kua dej (Cov Roj thiab roj, dej, slurry) kis. Siv tus qauv ntawm ASME B 36.10M.
Hauv cov qauv no, cov yeeb nkab sab nraud me dua 12.75 nyob rau hauv (NPS 12, DN 300), cov yeeb nkab qhov tseeb diameters loj dua NPS (Nominal Pipe Size) lossis DN (Nominal Diameter).

Ntawm tes, rau steel raj qhov ntev, qhov tseeb sab nraud txoj kab uas hla tib yam nrog cov yeeb nkab tooj rau txhua qhov ntau thiab tsawg.

Dab tsi yog Steel Pipe Dimensions Schedule?
Lub sijhawm ua yeeb yaj kiab steel yog ib txoj hauv kev qhia los ntawm ASME B 36.10, thiab tseem siv ntau lwm cov qauv, cim nrog "Sch". Sch yog lub ntsiab lus luv luv ntawm lub sijhawm, feem ntau tshwm sim hauv American steel yeeb nkab qauv, uas yog ib qho ua ntej ntawm tus lej series. Piv txwv li, Sch 80, 80 yog tus naj npawb ntawm cov yeeb nkab los ntawm daim duab / rooj ASME B 36.10.

"Vim tias cov yeeb nkab steel lub ntsiab yog siv los thauj cov kua dej hauv qhov siab, yog li lawv txoj kab uas hla sab hauv yog lawv qhov loj me. Qhov loj tseem ceeb no yog coj los ua nominal bore (NB). Yog li ntawd, yog tias cov yeeb nkab steel nqa cov kua dej nrog lub siab, nws tseem ceeb heev uas cov yeeb nkab yuav tsum muaj lub zog txaus thiab cov phab ntsa tuab txaus. Yog li phab ntsa thickness tau teev nyob rau hauv Schedules, uas txhais tau hais tias cov yeeb nkab teem caij, abbreviated li SCH. Ntawm no ASME yog tus qauv muab thiab txhais rau lub sijhawm ua yeeb yaj kiab. "

Cov yeeb nkab teem caij formula:
Sch.=P/[ó]t × 1000
P yog lub siab tsim, units hauv MPa;
[ó]t yog tso cai rau kev ntxhov siab ntawm cov ntaub ntawv nyob rau hauv qhov ntsuas kub, Chav nyob hauv MPa.

SCH txhais li cas rau steel yeeb nkab qhov ntev?
Raws li kev piav qhia ntawm cov yeeb nkab steel parameter, peb feem ntau siv cov yeeb nkab teem caij, Nws yog ib txoj hauv kev uas sawv cev rau cov yeeb nkab phab ntsa thickness nrog tus lej. Cov txheej txheem yeeb nkab (sch.) tsis yog phab ntsa tuab, tab sis phab ntsa thickness series. Cov txheej txheem yeeb nkab sib txawv txhais tau hais tias cov phab ntsa sib txawv rau cov yeeb nkab steel hauv tib txoj kab uas hla. Qhov feem ntau cov lus qhia ntawm lub sij hawm yog SCH 5, 5S, 10, 10S, 20, 20S, 30, 40, 40S, 60, 80, 80S, 100, 120, 140, 160. Qhov loj ntawm lub rooj tooj, lub thicker lub nto. yeeb nkab phab ntsa, qhov siab dua lub siab tsis kam.

Teem caij 40, 80 steel yeeb nkab dimension txhais tau tias
Yog tias koj yog tus tshiab hauv kev lag luam yeeb nkab, vim li cas koj ib txwm pom lub sijhawm 40 lossis 80 steel yeeb nkab txhua qhov chaw? Yam khoom siv li cas rau cov kav dej no?
Raws li koj tau nyeem cov lus saum toj no koj paub tias Teem sijhawm 40 lossis 80 sawv cev rau cov yeeb nkab phab ntsa tuab, tab sis vim li cas nws ib txwm tau tshawb xyuas los ntawm cov neeg yuav khoom?

Nov yog vim li cas:
Teem sijhawm 40 thiab 80 steel yeeb nkab raws li qhov ntau thiab tsawg uas yuav tsum tau muaj nyob rau hauv kev lag luam sib txawv, vim tias feem ntau cov kav dej dais, lawv ib txwm raug nug kom muaj ntau.

Cov khoom siv rau cov kav dej tuab no tsis muaj kev txwv, koj tuaj yeem nug sch 40 stainless hlau yeeb nkab, zoo li ASTM A312 Qib 316L; Los yog sch 40 carbon steel yeeb nkab, xws li API 5L, ASTM A53, ASTM A106B, A 179, A252, A333 thiab lwm yam.

Qhov Nominal Pipe Size (NPS) yog dab tsi?
Nominal Pipe Size (NPS) yog North American txheej txheem qhov ntau thiab tsawg rau cov kav dej siv rau qhov siab lossis qis thiab qhov kub thiab txias. Cov yeeb nkab loj yog teev nrog ob tus lej tsis-dimensional: lub npe yeeb nkab loj (NPS) raws li ntiv tes, thiab lub sijhawm (Sched. lossis Sch.).

DN (Nominal Diameter) yog dab tsi?

Nominal diameter kuj txhais tau tias sab nraud. Vim hais tias raws li cov yeeb nkab phab ntsa nyias nyias, sab nraud thiab sab hauv txoj kab uas hla ntawm cov yeeb nkab steel yog yuav luag tib yam, yog li qhov nruab nrab tus nqi ntawm ob qho tib si tsis yog siv raws li lub npe ntawm cov yeeb nkab txoj kab uas hla. DN (nominal inch) yog qhov dav dav ntawm ntau yam yeeb nkab thiab cov kav dej txuas ntxiv. Tib lub nominal txoj kab uas hla ntawm cov yeeb nkab thiab cov yeeb nkab fittings tuaj yeem sib cuam tshuam, nws muaj kev sib hloov. Txawm hais tias tus nqi nyob ze lossis sib npaug rau hauv txoj kab uas hla ntawm cov yeeb nkab, Nws tsis yog qhov tseeb ntawm cov yeeb nkab txoj kab uas hla. Qhov loj me nominal yog sawv cev los ntawm cov cim digital ua raws li tsab ntawv "DN", thiab kos cov chav nyob hauv millimeters tom qab lub cim. Piv txwv li, DN50, ib lub yeeb nkab nrog lub nominal txoj kab uas hla ntawm 50 hli.

Pipe Weight Class Schedule
WGT chav kawm (cov chav kawm hnyav) yog qhov qhia txog cov yeeb nkab phab ntsa tuab thaum ntxov, tab sis tseem siv tau. Nws tsuas muaj peb qib, xws li STD (tus qauv), XS (muaj zog ntxiv), thiab XXS (ob npaug ntxiv zog).
Rau cov yeeb nkab ua ntej lawm, txhua lub caliber tsuas muaj ib qho tshwj xeeb, hu ua standard tube (STD). Txhawm rau tiv thaiv cov kua dej siab, cov yeeb nkab tuab (XS) tau tshwm sim. XXS (ob lub zog ntxiv) cov yeeb nkab tau tshwm sim los tswj cov kua dej siab dua. Tib neeg tau pib xav tau kev siv cov yeeb nkab uas pheej yig dua cov phab ntsa nyias mus txog thaum qhov tshwm sim ntawm cov khoom siv tshiab ua tshuab, ces maj mam tshwm sim cov yeeb nkab saum toj no. Kev sib raug zoo ntawm cov yeeb nkab lub sij hawm thiab qhov hnyav hauv chav kawm, xa mus rau ASME B36.10 thiab ASME B36.19 specification.

Yuav piav qhia txog steel yeeb nkab qhov ntev thiab qhov loj npaum li cas?
Piv txwv li: a. Qhia tawm raws li "cov yeeb nkab sab nraud × phab ntsa tuab", xws li Φ 88.9mm x 5.49mm (3 1/2 "x 0.216"). 114.3mm x 6.02mm (4 1/2 "x 0.237"), ntev 6m (20ft) lossis 12m (40ft), Tib Random Length (SRL 18-25ft), lossis Ob Chav Random Length (DRL 38-40ft).

b. Qhia raws li “NPS x Schedule”, NPS 3 nti x Sch 40, NPS 4 nti x Sch 40. Tib qhov loj li saum toj no specification.
c. Qhia ua "NPS x WGT Class", NPS 3 nti x SCH STD, NPS 4 nti x SCH STD. Tib qhov loj me saum toj no.
d. Muaj lwm txoj hauv kev, hauv North America thiab South America, feem ntau siv "Pipe Outer Diameter x lb/ft" los piav txog cov yeeb nkab loj. Raws li OD 3 1/2 ", 16.8 lb/ft. lb/ft yog pound per feet.