Tshaj li tus qauv: ASTM Carbon Steel Galvanized Seamless Thick -Wall Pipe
Engineered rau Demanding Fluid Conveyance Applications
Product Overview
Ntau tshaj ib cov yeeb nkab - Cov hlab ntsha ntawm cov kua xa tawm
Nyob rau hauv cov roj extraction, refining thiab petrochemicals, thermal power generated, nuclear auxiliary systems, municipal heating networks, fire protection systems, shipbuilding, and offshore engineering - pipeline tsis ua hauj lwm txhais tau hais tias kev tsim khoom kaw, xau, lossis txawm tias muaj kev nyab xeeb kev nyab xeeb. Peb ASTM Carbon Steel Galvanized Seamless Thick-Pab ntsa yeeb nkab yog tsim los ntawm cov khoom siv mus rau kev tsim khoom rau cov kev pabcuam uas xav tau tshaj plaws.
Txheem & Khoom siv
Manufactured rauASTM A53 / Hom S, Qib B- lub ntiaj teb no lees paub specification rau seamless steel yeeb nkab siv nyob rau hauv txhua yam thiab siab daim ntaub ntawv, xws li chav, dej, roj, thiab cua kab. Cov tshuaj lom neeg muaj pes tsawg leeg (xws li: C Tsawg dua lossis sib npaug rau 0.30%, Mn Tsawg dua lossis sib npaug rau 1.20%, P Tsawg dua lossis sib npaug rau 0.035%, S Tsawg dua lossis sib npaug rau 0.035%) thiab cov khoom siv kho tshuab raug txheeb xyuas los ntawm batch. Txhua lub yeeb nkab tuaj nrog ua tiav Daim Ntawv Pov Thawj Mill Test (MTC), suav nrog kev ntsuas cua sov, cov txiaj ntsig tensile, cov ntaub ntawv ntsuas hydrostatic, thiab cov ntaub ntawv kuaj xyuas tsis muaj kev puas tsuaj.
Seamless Manufacturing txheej txheem piav qhia
Pib los ntawm cov khoom puag ncig, cov yeeb nkab yog tsim los ntawm kev tho ntawm qhov kub thiab txias, ua raws los ntawm ntau- hla kub dov lossis txias kos duab / txias dov kom ua tiav OD thiab phab ntsa tuab qhov ntev. Thoob plaws hauv tag nrho cov txheej txheem, cov hlau nplej ntws tseem tsis tu ncua thiab tsis tu ncua - yam tsis muaj qhov sib txuas ntawm vuam - uas ua rau cov yeeb nkab seamless superior qaug zog tiv thaiv thiab kev ntxhov siab- corrosion cracking kuj piv rau welded lwm txoj kev.
Technical Specifications
Mechanical Properties
| Khoom | Qib B yuav tsum tau | Tus nqi |
|---|---|---|
| Yield zog (min) | Ntau dua lossis sib npaug rau 240 MPa (35,000 psi) | 280-320 MPa |
| Tensile zog (min) | Ntau dua lossis sib npaug rau 415 MPa (60,000 psi) | 450-500 MPa |
| Elongation (min) | Ntau dua lossis sib npaug li 25% (gauge ntev 50mm) | 28-32% |
| Hardness (HB) | Tsawg dua lossis sib npaug li 197 | 150-175 |
| Impact Toughness (0 degree) | Ntau dua lossis sib npaug rau 27 J (los ntawm kev pom zoo) | 45-60 J |
Daim ntawv thov Scenario
Npog Kaum Qhov Kev Lag Luam Tseem Ceeb
| Kev lag luam | Daim ntawv thov tshwj xeeb | Pom zoo teem caij |
|---|---|---|
| Roj & Roj | Cov kab sib sau ua ke, cov kav dej zoo, cov kav dej sib txuas | Sch 80 ~ XXS |
| Refining & Petrochemical | Siab -cov txheej txheem kub txheej txheem, cov kab catalyst, chav tracing | SWB 80–160 |
| Thermal Power Generation | Boiler feedwater, main steam drainage, circulating dej txias | SWB 40–80 |
| Nuclear Auxiliary Systems | Pas dej ua ke cov dej txias, tiv thaiv hluav taws | SWB 40–80 |
| Municipal Dej & Cua sov | Siab - cov kav dej siab, hauv cheeb tsam cua sov thawj cov tes hauj lwm | SWB 40–80 |
| Tiv thaiv hluav taws | Sprinkler mains, hluav taws kub hydrant mov kab | Sch 40 (Ntau dua lossis sib npaug rau DN150) |
| Marine & Offshore | Ballast dej, roj hloov roj, lawj hluav taws kub mains | SWB 80–160 |
| Mining & Metallurgy | Slurry kab, siab - cua txias, plua plav sau | SWB 80–160 |
| Tshuaj & Fertilizer | Corrosive media (galvanized tiv thaiv), siab -siab synthesis gas | SWB 80–160 |
| Qauv + Kev xa khoom dual-Lub hom phiaj | Kev thauj khoom sib xyaw ua ke thiab thauj khoom- kev txhawb nqa kabmob | SWB 40–80 |
Tiag -Kev Tshawb Fawb Ntiaj Teb
Case 1: Mega Integrated Refining & Petrochemical Complex
Yuav tsum tau: Superheated chav ntawm 220℃/ 5.2 MPa, pipeline ntev ~ 3.8 km.
Kev xaiv: ASTM A53 Qib B galvanized seamless, NPS 8, Sch 80.
Result: 36 months of continuous operation - zero leaks, zero repairs, coating integrity >95%.
Case 2: Coastal LNG Terminal Firewater System
Qhov yuav tsum tau muaj: Marine siab - ib puag ncig ntsev pos huab, lub ntsiab hluav taws kub ntawm 1.6 MPa.
Kev xaiv: Kub-dip galvanized seamless tuab- phab ntsa yeeb nkab, NPS 10, Sch 40.
Qhov tshwm sim: Muaj sia nyob ob lub caij cua daj cua dub nrog xoom corrosion perforation; dhau qhov kev kuaj xyuas hluav taws kev nyab xeeb rau thawj zaug.
Kev sib tw zoo
Seamless vs. Welded Pipe: Qhov txawv tseem ceeb
| Yam | Seamless (Hom S) | Welded (ERW / LSAW) |
|---|---|---|
| Weld Seam | Tsis muaj | Longitudinal los yog kauv weld tam sim no |
| Siab -Kev Ntseeg Siab | Siab heev - tsis muaj zog taw tes | Weld yog qhov chaw pib ua tsis tiav |
| Fatigue Lub Neej | Zoo heev (tsis muaj kev ntxhov siab) | Nruab nrab (kev ntxhov siab nyob ntawm thaj chaw weld) |
| SCC Resistance | Superior | Ntau raug ntawm weld HAZ |
| Dimensional Uniformity | Zoo heev | Zoo (me ntsis variation ntawm weld hlaws) |
| Chav tsev nqi | Siab dua | qis |
| Media Suitability | Tag nrho cov xov xwm, tshwj xeeb tshaj yog txaus ntshai | Cov xov xwm dav dav; tsis pom zoo rau ultra- phom sij |
Galvanized vs. Painted / Epoxy: Corrosion Protection Sib piv
| Hom kev tiv thaiv | Impact Resistance | Scratch Resistance | Kev tu ncua sij hawm | Siab -Tsub haum |
|---|---|---|---|---|
| Kub-Dip Galvanized | Zoo heev (metallurgical bond) | Zoo heev | 20+ xyoo | Txog li 200 degree |
| Epoxy txheej | Moderate (adhesive bond) | Nruab nrab | 5-10 xyoo | Nruab nrab |
| Xim | pluag | pluag | 2-5 xyoos | pluag |
| Bare (Dub). | - | - | Yuav tsum tau nquag | Haum, tab sis tsis muaj kev tiv thaiv |
Quality Assurance
◎ Daim ntawv pov thawj & Cov ntaub ntawv muaj
◎ Mill Test Certificate (EN 10204 Hom 3.1 lossis 3.2)
◎ Thib peb- tsab ntawv ceeb toom soj ntsuam (SGS/BV/DNV - yeem)
◎ Hydrostatic test cav
◎ NDT cov ntawv xeem
◎ Galvanized txheej tshuaj xyuas cov ntaub ntawv
◎ Daim ntawv pov thawj ntawm Keeb Kwm
Cov lus nug nquag nug (FAQ)
Q1: Cov kav dej galvanized puas tuaj yeem siv rau kev xa dej haus?
A1: Yog. Kub-dip galvanized kav tau ntev tau siv dav hauv cov kav dej haus thiab ua tau raws li cov qauv kev nyab xeeb ntawm cov dej haus. Txawm li cas los xij, yog tias cov dej tsis zoo yog qhov tsis zoo -hardness los yog corrosive heev, peb pom zoo kom galvanized yeeb nkab nrog yas los yog epoxy hauv ob sab phlu.
Q2: Dab tsi yog qhov kev ua haujlwm siab tshaj plaws?
A2: Cov txheej txheej galvanized tuaj yeem pom qhov tsis muaj xim lossis ib nrab flaking saum 200 degree, tab sis cov yeeb nkab lub cev khaws cov qauv ntawm qhov kub thiab txias. Ntev -lub sij hawm kev pab kub yog pom zoo kom tsis pub tshaj 200 degree, nrog luv luv - lub sij hawm peaks mus txog 250℃.
Q3: Koj puas tuaj yeem muab threaded yeeb nkab kawg?
A3: Yog. Peb muab NPT threading rau ANSI / ASME B1.20.1, lossis lwm cov qauv xov rau cov neeg siv khoom.
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