ASTM A358 Stainless EFW Steel Yeeb Nkab Specifications.PDF
Tso lus
Cov khoom siv ASTM A358 yog dab tsi?
ASTM A358 yog tus qauv tshwj xeeb rau Electric Fusion Welded (EFW) Austenitic Chromium-Nickel Stainless Steel Pipe npaj rau siab - qhov kub thiab txias kev siv thiab kev siv corrosive. Cov kav dej no yog tsim los siv cov txheej txheem hluav taws xob fusion welding (EFW), feem ntau nrog ib zaug -welded los yog ob npaug -welded pob qij txha, kom ntseeg tau qhov zoo ntawm cov qauv kev ncaj ncees thiab ntev- lub sij hawm kev cia siab nyob rau hauv xav tau kev khiav hauj lwm tej yam kev mob. Cov qib stainless hlau feem ntau suav nrog 304, 304L, 316, 316L, 321, 347, thiab 310S. ASTM A358 cov kav dej tau siv dav hauv cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov kav dej siab, thiab cov txheej txheem kev siv cov kav dej, qhov twg yuav tsum muaj kev tiv thaiv zoo rau cov cua sov, corrosion, thiab mechanical stress.
Cov chav kawm yeeb nkab thiab vuam yuav tsum tau (chav kawm)
ASTM A358 faib EFW stainless hlau kav rau hauv tsib chav kawm raws li cov txheej txheem vuam thiab kev kuaj hluav taws xob:
Chav Kawm 1: Ob chav-welded kev tsim kho, nrog cov hlau muab tub lim ntxiv rau txhua qhov kev sib txuas thiab 100% kev kuaj hluav taws xob (RT) ua rau ntawm cov pob qij txha welded.
Chav Kawm 2: Ob chav -welded kev tsim kho, nrog cov hlau muab tub lim ntxiv rau txhua qhov kev sib txuas, tsis muaj kev kuaj hluav taws xob.
Chav Kawm 3: Ib leeg-welded kev tsim kho, nrog cov hlau muab tub lim ntxiv rau tag nrho cov vuam hla dhau thiab 100% kev kuaj hluav taws xob (RT) ua rau ntawm vuam seam.
Chav Kawm 4: Zoo ib yam li Chav Kawm 3, tshwj tsis yog tias qhov vuam kis tau raug rau hauv cov yeeb nkab sab hauv (ID) tuaj yeem ua yam tsis muaj qhov sib ntxiv ntawm cov hlau muab tub lim.
Chav Kawm 5: Muab ob npaug rau-welded kev tsim kho, nrog cov hlau muab tub lim ntxiv rau tag nrho cov vuam hla dhau thiab raug kuaj pom hluav taws xob (Spot RT) ntawm vuam seam.
Yog tias koj muaj lus nug, koj tuaj yeem nyem rau hauv qab no kom tau txais ASTM A358 PDF.
Specifications ntawm A358 Stainless Hlau EFW Pipes:
| Specifications | ASTM A358, ASME SA358 |
| Txuj | ASTM A-358, A-409, A-778, A-928, ASTM A671/A672, ASTM A691 |
| Qhov Loj | 8€³NB OD to 64€³NB OD |
| Phab ntsa Thickness | 2.5 hli € 50mm |
| Teem caij | 20, 30, 40, Standard (STD), 60, Extra Heavy (XS), 80, 100, 120, 140, 160, XXS |
| Qib | 304, 304L, 304H, 309, 309s, 310, 310s, 316, 316L, 316L, 316H, 317L, 321, 321H, 347, 347H, 904L, UNS5 S327 UNS, UNS S31803 |
| Ntev | Txiav ntev, Kho qhov ntev, 100mm txog 12mtr ntev. |
| Xaus | Plain End, Beveled End |
Phaj thiab Filler Hlau Specifications
| Qib | UNS | Hom khoom | ASTM Phaj Spec. & Qib | A5.4 / A5.4M Chav Kawm / UNS | A5.9 / A5.9M Chav Kawm / UNS | A5.22 / A5.22M Chav Kawm / UNS | A5.30 / A5.30M Chav Kawm / UNS |
|---|---|---|---|---|---|---|---|
| 201 | S20100 | 201 | A240 / A240M Hom 201 | … / … | … / … | … / … | … / … |
| 201 LN | S20153 | 201 LN | A240 / A240M Hom 201LN | … / … | … / … | … / … | … / … |
| XM-19 | S20910 | XM-19 | A240 / A240M Hom XM-19 | E209 / W32210 | ER209/S20980 | … / … | … / … |
| 304 | S30400 | 304 | A240 / A240M Hom 304 | E308 / W30810 | ER 308 / S30880 UAS | E308T / W30831 | IN308/S30880 |
| 304L | S30403 | 304L | A240 / A240M Hom 304 | E308L / W30813 | ER308L / S30883 Cov | E308LT/W30835 | IN308L / S30883 |
| 304H | S30409 | 304H | A240 / A240M Hom 304H | E308H / W30810 | ER 308 / S30880 UAS | E308T / W30831 | IN308/S30880 |
| 309S | S30908 | 309S | A240 / A240M Hom 309S | … / … | … / … | … / … | … / … |
| 310S | S31008 | 310S | A240 / A240M Hom 310S | … / … | … / … | … / … | … / … |
| 316 | S31600 | 316 | A240 / A240M Hom 316 | E316 / W31610 | ER 316 / S31680 | E316T / W31631 | IN316/S31680 |
| 316L | S31603 | 316L | A240 / A240M Hom 316L | E316L / W31613 | ER316L / S31683 | E316LT / W31635 | IN316L / S31683 |
| 316H | S31609 | 316H | A240 / A240M Hom 316H | E316H / W31610 | ER316H / S31680 Cov | E316T / W31631 | IN316/S31680 |
| 321 | S32100 | 321 | A240 / A240M Hom 321 | E347 / W34710 | ER321 / S32180; ER347 / S34780 | E347T / W34731 | SIB 348/S34780 |
| 347 | S34700 | 347 | A240 / A240M Hom 347 | E347 / W34710 | ER347/S34780 UAS | E347T / W34731 | SIB 348/S34780 |
Annealing Requirements
| Qib lossis UNS Lub Npe | Thaum tshav kub kub kho kub | Cov Cuab Yeej Cuab Yeej / Kev Ntsuas Kev Ntsuas |
|---|---|---|
| Txhua qib tsis muaj npe nyob rau hauv qab no | 1900℃F [1040 degree] | ᶜ |
| 304H, 309S, 309Cb, 310S, 310Cb, 321H, 347H, S22100, S28300 | 1900℃F [1040 degree] | ᶜ |
aSTM a358 yeeb nkab kam rau ua
|
nps designator |
permissible variations nyob rau hauv sab nraud txoj kab uas hla |
|
|
hla hauv. |
hauv qab. |
|
|
1/8 rau 1-1/2, incl |
1/64 (0.015) |
1/32 (0.031) |
|
tshaj 1-1/2 rau 4, incl |
1/32 (0.031) |
1/32 (0.031) |
|
tshaj 4 rau 8, incl |
1/16 (0.062) |
1/32 (0.031) |
|
tshaj 8 mus rau 18, incl |
3/23 (0.093) |
1/32 (0.031) |
A358 yeeb nkab siv rau dab tsi?
ASTM A358 yeeb nkab feem ntau yog siv nyob rau hauv siab -kub, corrosive heev, thiab siab- hnyav kev lag luam ib puag ncig. Tsim los ntawm hluav taws xob - fusion vuam (EFW), nws yog dav siv rau cov txheej txheem piping, cov txheej txheem kev txhawb nqa, thiab kev thauj cov dej hauv cov khoom xav tau xws li kev ua tshuaj lom neeg, tsim hluav taws xob, thiab roj thiab roj refineries.
Qhov txawv ntawm A358 thiab A312 yeeb nkab yog dab tsi?
ASTM A312 npog seamless, welded, thiab hnyav hnyav - ua haujlwm austenitic stainless hlau kav, whereas ASTM A358 tsuas yog siv rau Electric Fusion Welded (EFW) stainless hlau kav. Piv nrog ASTM A312 cov kav dej, uas feem ntau muaj nyob rau hauv qhov ntau thiab tsawg mus txog NPS 30 (30 ntiv tes), ASTM A358 cov kav dej muaj tus nqi ntau dua - siv tau zoo rau cov ntawv loj - txoj kab uas hla thiab tuaj yeem tsim tau ntau qhov loj, nrog rau sab nraud diameters txog 48 nti (1219 mm).
Dab tsi yog qhov txawv ntawm ERW thiab EFW stainless hlau yeeb nkab?
ERW (Electric Resistance Welded) thiab EFW (Electric Fusion Welded) stainless hlau kav sib txawv hauv lawv cov txheej txheem vuam thiab kev siv zoo tagnrho. ERW siv lub siab- zaus hluav taws xob tam sim no thiab siab los koom nrog cov npoo hlau tsis muaj cov hlau muab tub lim. EFW melts lub hauv paus hlau ua ke siv ib tug hluav taws xob arc thiab feem ntau yuav tsum tau ib tug muab tub lim hlau.
Cov qauv tshuaj ntsuam xyuas rau A358 yog dab tsi?
ASTM A358 tus qauv npog hluav taws xob- fusion-welded (EFW) austenitic stainless hlau yeeb nkab tsim los rau siab - kub thiab corrosive kev pab cuam. Nws cov txheej txheem tshuaj xyuas- tau nthuav dav hauv cov qauv kev ntsuas cov cai thiab cov yeeb nkab qib- suav nrog cov kev kuaj xyuas qhov ntev, nruj tsis- kuaj kev puas tsuaj (kev kuaj hluav taws xob), ntsuas cov cuab yeej cuab tam (nruj / khoov), thiab kuaj hydrostatic.
Cov ntaub ntawv siv
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A262 Kev Ua Haujlwm rau Kev Tshawb Fawb Kev Ua Phem rau Kev Tawm Tsam Sib Tham hauv Austenitic Stainless Steels
A480/A480M Specification rau General Requirements for Flat-Rolled Stainless thiab Kub-Resisting Steel Phaj, Sheet, thiab Sawb
A999 / A999M Specification rau General Requirements rau Alloy thiab Stainless Hlau Yeeb Nkab
Yog tias koj txaus siab, thov muab cov ntaub ntawv hauv qab no:
Lub kaw lus kev khiav hauj lwm siab thiab qhov kub thiab txias, cov yeeb nkab txoj kab uas hla thiab phab ntsa thickness (Schedule) koj tab tom xav txog, thiab hom kua los yog roj xa. Kuv tuaj yeem pab koj txiav txim siab seb A358 cov khoom puas ua tau raws li koj qhov project qhov kev xav tau.
