ASTM A511 yog dab tsi?
ASTM A511 yog ib qho kev qhia tshwj xeeb uas npog seamless stainless hlau mechanical raj thiab hollow tuav. Tubes yog tsim los ntawm xuas nrig ntaus steel ingots thiab ces kub los yog txias ua rau qhov kawg qhov ntev. Cov kev qhia tshwj xeeb suav nrog MT304 thiab MT316 round tubes, uas yog ntau tshaj, tab sis kuj suav nrog square, duab plaub thiab cov duab kev cai. Cov raj feem ntau yog muab rau annealed.
ASTM A269 khoom yog dab tsi?
ASTM A269 yog tus qauv kev qhia tshwj xeeb rau seamless thiab welded austenitic stainless hlau tubing, haum rau kev tiv thaiv corrosion thiab kub lossis kub ib puag ncig. Nws yog tus qauv uas nyiam tshaj plaws rau lub hom phiaj dav dav stainless hlau tubing (xws li cov kab hydraulic, ntsuas, thiab cov khoom siv tshuaj), tab sis tsis suav nrog cov qauv tshwj xeeb rau boilers lossis condensers.
ASTM A511 vs ASTM A269: Qhov tseem ceeb sib txawv
| Feature | ASTM A511 Cov Lus Qhia Tshwj Xeeb | ASTM A269 Cov khoom lag luam |
|---|---|---|
| Normative txhais | Standard Specification rau Stainless Hlau Seamless Mechanical Tubing | Standard Specification rau Austenitic Seamless thiab Welded Stainless Hlau Tubing rau General Purpose |
| Daim ntawv thov tseem ceeb | Mechanical qhov chaw, bushings, spacers, structural Cheebtsam thiab qhov chaw uas yuav tsum tau machining | General anticorrosive kev pab cuam, tsawg thiab siab kub daim ntaub ntawv, kua piping thiab instrumentation |
| Cov txheej txheem tsim khoom | Solderless nkaus xwb (kub lossis txias tiav) | Tsis muaj soldering los yog soldering |
| Cov ntaub ntawv qib | Austenitic, ferritic, martensitic thiab duplex stainless hlau | Feem ntau austenitic stainless hlau (304, 316, 317, 321, 347, thiab lwm yam) |
| Dimensional tsom | Prioritizes sab nraud txoj kab uas hla thiab phab ntsa thickness, los yog nyob rau hauv txoj kab uas hla thiab thickness los pab txhawb machining | Tsom ntsoov rau qhov tseeb sab nraud txoj kab uas hla thiab nruab nrab phab ntsa thickness rau compatibility thiab txaus stability |
| Tolerances | Dav, tsim rau machining margins | Ntau nruj tolerances sab nraud txoj kab uas hla thiab thickness, haum rau compression fittings |
| Mechanical xeem | Tsis tas yuav tsum tau, tsuas yog raws li tus neeg thov kev thov | Yuav tsum tau xeem: hardness test, flare test (non-welded) thiab rim test (welded) |
| kev ntsuas siab | Tsis tas yuav tsum tau, hydrostatic thiab eddy kev ntsuam xyuas tam sim no xaiv tau | Yam yuav tsum tau ua: kuaj hydrostatic lossis tsis muaj kev puas tsuaj tam sim no |
| Kev kho cua sov | Muab nyob rau hauv dov (martensitic / ferritic) los yog lub xeev annealed | Yuav tsum tau kho cua sov, tag nrho cov khoom nkag rau hauv cov tshuaj annealed xeev |
| Nto tiav | Rough nto (kub tiav) lossis txheem txias kos tiav | Smooth, ci annealed los yog polished nto |
Qhov txawv ntawm A269 thiab A270 yog dab tsi?
Qhov sib txawv tseem ceeb yog tias ASTM A269 yog siv rau lub hom phiaj dav hlau stainless hlau yeeb nkab, qhov twg txhua yam kev ncaj ncees thiab kev tiv thaiv corrosion yog qhov tseem ceeb, thaum ASTM A270 yog cov lus qhia huv huv uas xav tau tshwj xeeb, polished nto tiav rau hauv cov khoom noj, dej haus thiab tshuaj lag luam.
Dab tsi yog qhov txawv ntawm ASTM A213 thiab ASTM A269?
Ob lub ASTM A213 thiab ASTM A269 yog cov qauv rau cov yeeb nkab steel hlau, tab sis lawv sib txawv hauv lawv cov kev siv thiab kev tsim khoom tshwj xeeb. Tus qauv A213 yog tsim los rau cov khoom siv hluav taws xob siab, kub kub xws li boilers thiab cov khoom siv hluav taws xob. Standard A269 yog tus qauv siv dav dav rau kev thauj mus los ntawm corrosion-resistant kua thiab gases nyob rau hauv nruab nrab tej yam kev mob.
Dab tsi yog qhov txawv ntawm ASTM A269 thiab ASTM A312?
ASTM A269 thiab ASTM A312 yog cov lus qhia tshwj xeeb rau austenitic stainless hlau. ASTM A269 siv rau cov kav dej rau qhov kub thiab txias thiab corrosive cov kev pabcuam dav dav, yuav tsum muaj qhov ntev thiab ua tiav rau kev ntsuas thiab cov tshuab tsis tshua muaj siab. ASTM A312 tswj kav cov kav dej rau kev siv hluav taws xob kub thiab siab siab.
ASTM A511 thiab ASTM A269 Stainless Hlau Pipe Chaw tsim tshuaj paus
Yog tias koj qhov project xav tau ASTM A511 thiab ASTM A269 stainless hlau yeeb nkab, thov koj xav tso qhov kev txiav txim. GNEE muaj ntau cov khoom lag luam nrov, suav nrog 304, 316, MT304, MT316, thiab lwm yam. Rau cov ncauj lus kom ntxaws txog cov tshuaj muaj pes tsawg leeg thiab cov qauv dawb, thov hu rau peb lub Hoobkas tam sim ntawd. Peb muab cov nqi sib tw thiab kev pabcuam zoo heev.
| Feature | ASTM A511 Cov Lus Qhia Tshwj Xeeb | ASTM A269 Cov khoom lag luam |
|---|---|---|
| Yam khoom | Weldless mechanical tube / hollow bar | Seamless thiab Welded General Purpose Pipe |
| Qib ib txwm | 304/304L, 316/316L, 321, 310S, 410, 430, 904L, duplex 2205/2507 | 304/304L, 316/316L, 317L, 321, 347, S31254 (6-Molybdenum) |
| Sab nraud txoj kab uas hla (OD) | 6.0mm txog 1219mm (txog 48 nti) | 6.35 hli (1/4 ") txog 219.1 hli (8 nti) |
| phab ntsa thickness | 0.5mm txog 100mm (tshwj xeeb tuab) | 0.5mm txog 12.7mm |
| Ntev | Ib leeg, ob npaug lossis ntev ntev (txog 18 m) | 6 meters (tus qauv) los yog coiled raj (ntau tshaj 1000 m) |
| Nto tiav | Kub tiav, txias kos, annealed thiab pickled (AP), machining | Bright annealed (BA), polished (180, 240, 320, 400, 600 grit) |
| Kev npaj kawg | Smooth, beveled los yog ncaj txiav xaus | Smooth xaus, ncaj txiav tsis muaj burrs rau accessories |
| Kev sim muaj | Tshuaj thiab txhua yam tshuaj ntsuam xyuas, kuaj ultrasonic, ntsuas qhov ntev | Hydrostatic test, eddy tam sim no xeem, flaring thiab flattening xeem |
| Cov kev pabcuam ua haujlwm | CNC machining, tho txawv, honing, txiav kom loj | Precision dabtsi yog khoov, winding, laser txiav, polishing |
Ntim rau hauv lub thawv ntoo
