Txheej txheem cej luam
ASTM A53yog tus qauv specification rau cov yeeb nkab, npog seamless thiab welded dub thiab kub -dipped galvanized steel yeeb nkab.Qib Byog qib feem ntau teev nyob rau hauv tus qauv no vim nws lub zog ntau dua piv rau Qib A.
Cov yam ntxwv tseem ceeb & Khoom
| Feature | Kev piav qhia |
|---|---|
| Khoom siv | Carbon Steel |
| Hom Qib | Qib B(Kuj muaj nyob rau hauv Qib A, tab sis Qib B muaj ntau dua) |
| Hom | Hom F(Furnace Butt-Welded),Hom E(Electric-Resistance Welded),Hom S(Tsis muaj seamless) |
| Yield zog | 35,000 psi (240 MPa)yam tsawg kawg nkaus |
| Tensile zog | 60,000 psi (415 MPa)yam tsawg kawg nkaus |
| Chemistry | Cov ntsiab lus carbon thiab manganese siab dua qib A, pab txhawb rau nws lub zog. |
| Qhov Loj | 1/8 "NPS rau 26" NPS (Nominal Pipe Size). Nco tseg: Tsis yog txhua hom npog tag nrho qhov loj me. |
Hom A53 Yeeb Nkab (Lub "Hom" Tsim)
Qhov no yog qhov sib txawv tseem ceeb thaum qhia A53 yeeb nkab:
Hom S (Seamless)
Kev tsim khoom:Ua los ntawm kev tho lub pob zeb ntawm cov hlau los ua lub plhaub hollow yam tsis muaj seams.
Qhov zoo:Tsis muaj weld seam, ua rau nws muaj zog thiab ntau yam. Txaus siab rau siab - cov ntawv siv siab, kev siv cov txheej txheem tseem ceeb, thiab qhov kev tiv thaiv corrosion yog ib qho kev txhawj xeeb (lub seam tuaj yeem yog qhov tsis muaj zog).
Kev siv:Siab piping, mechanical applications, structural kem.
Hom ERW (Electric{0}}Resistance Welded)
Kev tsim khoom:Tsim los ntawm cov ntawv dov (skelp) thiab cov seam yog welded siv cov hluav taws xob tam sim no.
Qhov zoo:Tus nqi ntau dua - zoo dua seamless. Cov txheej txheem ERW niaj hnub ua tau zoo - vuam zoo.
Kev siv:Tsawg -kev thauj cov kua dej, laj kab, kev siv cov qauv, scaffolding.
Hom F (Lub Rauv Butt-Welded)
Kev tsim khoom:Nruam tsim thiab welded los ntawm mechanical siab nyob rau hauv lub cub tawg.Hom no tsuas muaj nyob rau qib A.
Qhov zoo:Hom kev lag luam tshaj plaws.
Kev siv:Tsawg-sab siab, dej, roj, thiab cua kab.Tsis yog rau flanging lossis khoov.
Daim ntawv thov
ASTM A53 Qib B yeeb nkab yog ntau yam thiab siv nyob rau hauv ntau yam kev lag luam:
Cov kav dej thiab HVAC:Kev thauj dej, chav dej, thiab huab cua.
Roj thiab Roj:Sib sau ua ke thiab sib kis kab (feem ntau onshore, qis siab).
Kev siv tus qauv:Raws li kem, tes tuav, thiab scaffolding (Ceeb Toom: Rau cov tswv cuab tseem ceeb,ASTM A500 1yog feem ntau nyiam raws li nws yog ib tug tshwj xeeb structural spec).
Fencing thiab Guardrails:Vim nws lub zog thiab muaj.
Industrial Piping:Rau ntau yam txheej txheem kua.
A53 Qib B vs A106 Qib B
Qhov no yog ib qho kev tsis meej pem heev.
| Feature | ASTM A53 Qib B | ASTM A106 Qib B |
|---|---|---|
| Kev siv thawj zaug | Lub hom phiaj dav dav, cov qauv tsim, qis / nruab nrab siab | High-Tsev Kev Pabcuam |
| Scope | Seamless & Welded | Seamless nkaus xwb |
| Chemistry | Kev txwv me ntsis | Kev txwv ntau dua ntawm cov ntsiab lus xws li Silicon (Si) thiab cov pa roj carbon ntau sib npaug rau qhov zoo dua weldability ntawm qhov kub siab. |
| Kev sim | Txheem hydrostatic los yog tsis yog -kev ntsuas hluav taws xob puas tsuaj | Yuav tsum tau kuaj hydrostatic ntawm txhua daim (rau qhov ntau thiab tsawg hauv ib qho kev txwv). |
| Thaum siv | Cov kav dej dav dav, laj kab, qis-siab chav, cov kab ke. | Boiler raj, superheaters, siab -kub/siab txheej txheem kab. |
Simple Rule of Thumb:Yog tias qhov kev pabcuam muaj qhov kub thiab txias (feem ntau tshaj 750℃F / 400 degree), sivA106. Rau ambient lossis qis dua -kev siv kub,A53feem ntau txaus thiab nyiaj txiag ntau dua.
Qhov zoo thiab qhov tsis zoo
Qhov zoo:
Tus nqi -zoo:Muaj dav thiab sib tw nqi.
Siab zog:Qib B muaj qhov sib npaug zoo ntawm lub zog thiab kev tsim kho.
Ntau yam:Muaj nyob rau hauv seamless thiab welded cov ntaub ntawv kom haum raws li cov kev xav tau sib txawv thiab pob nyiaj siv.
Weldable & Machinable:Yooj yim rau kev ua haujlwm nrog kev siv cov txheej txheem txheem.
Qhov tsis zoo:
Corrosion:Raws li cov pa roj carbon steel, nws yuav xeb tau yooj yim yog tias tsis tiv thaiv (xws li, nrog cov xim, galvanization, lossis lwm yam txheej).
Tsis yog rau siab -Temp:Tsis haum rau kev ua haujlwm siab - qhov kev pabcuam kub zoo li A106.
Welded Hom muaj Seam:Weld seam tuaj yeem yog qhov tseem ceeb ntawm qhov tsis ua haujlwm nyob rau hauv kev ntxhov siab los yog corrosion.
Cov ntsiab lus
ASTM A53 Qib Byog lub chaw ua haujlwm ntawm cov pa roj carbon steel yeeb nkab ntiaj teb. Nws qhov kev sib xyaw ua ke zoo heev ntawm lub zog, muaj, thiab tus nqi ua rau nws yog qhov kev xaiv zoo tshaj plaws rau suav tsis txheeb cov tshuab, cov qauv, thiab qis - rau - cov kav dej nruab nrab ntawm txhua qhov kev lag luam.
Nco ntsoov qhia hom (S, E, lossis F) thiab seb koj xav tau cov xim dub lossis galvanized tiav thaum xaj.
