ASTM A387 Qib 11 sib npaug li cas?
ASTM A387 Qib 11 Chav Kawm 1 yog hais txog chromium-molybdenum (1.25% Cr, 0.5% Mo) alloy steel phaj rau cov hlab ntsha siab nkag rau hauv qhov normalized los yog kev ntxhov siab-relieved kub kho mob. Nws yog tsim los rau siab - qhov kub thiab txias qhov kev pab cuam uas tus fabricator yuav ua zaum kawg ncej-weld heat treatment (PWHT) tom qab tsim khoom, ua rau nws haum rau cov khoom uas yuav tsum tau dav tsim thiab vuam nyob rau hauv refineries thiab fais fab nroj tsuag.
ASTM A387 Qib 11 tau lees paub thoob ntiaj teb thiab kev lag luam sib npaug, txawm hais tias qhov sib npaug yog nyob ntawm tus qauv tshwj xeeb thiab cov ntsiab lus ntawm daim ntawv thov (piv txwv li, cov hlab ntsha siab, piping code, forging specification).
1. Kaw Cov Khoom Siv Thoob Ntiaj Teb Zej Zog (Nyob ze-Ib Tus Txheej Txheem & Daim Ntawv Thov)
Cov no yog cov sib npaug ncaj qha tshaj plaws rau kev siv lub nkoj siab siab:
TS EN 10028-2: 13CrMo4-5 (European Standard)
Qhov no yog qhov feem ntau thiab meej sib npaug European. Nws muaj cov tshuaj lom neeg yuav luag zoo ib yam (1.0-1.5% Cr, 0.4-0.6% Mo) thiab raug xaiv rau lub hom phiaj siab.
JIS G3115: SCMV 430 (Japanese Industrial Standard)
GB 713: 15CrMoR (Suav Standard rau Pressure Vessel Steel)
Nco tseg: Thaum sib npaug, 15CrMoR feem ntau muaj me ntsis siab dua nominal chromium cov ntsiab lus (nyob ib ncig ntawm 1.5%).
2. Cov Lus Qhia Tseem Ceeb hauv Teb Chaws Asmeskas & Chaw Tsim Khoom
Cov qauv no suav nrog tib lub alloy tab sis nyob rau hauv cov khoom sib txawv lossis cov lej kev lag luam tshwj xeeb:
ASME SA-387 Qib 11
Thaum ASTM specification tau txais los ntawm ASME Boiler thiab Pressure Vessel Code rau kev nyab xeeb- cov ntawv thov tseem ceeb, nws tau ua ntej nrog 'S' (xws li SA-387). Cov muaj pes tsawg leeg thiab cov kev xav tau yog qhov tseem ceeb zoo ib yam.
ASTM A335 P11 / ASME SA335 P11 (rau Seamless yeeb nkab)
ASTM A182 F11 / ASME SA182 F11 (rau Forgings & Fittings)
Tseem ceeb: Hauv A182, F11 Chav Kawm 1 yog qib qub, thaum F11 Chav Kawm 2 yog qib normalized thiab tempered. Qhov no ua raws li A387 Class 1 vs. Class 2 philosophy.
ASTM A213 T11 (rau Seamless Tubes)
UNS K11789
Qhov no yog Unified Numbering System identifier rau qhov tshwj xeeb alloy muaj pes tsawg leeg.
3. Sib piv Table of Common Equivalents
| Txheem & Daim Ntawv | Qib Qib | Daim ntawv thov | |
|---|---|---|---|
| Plate (Lub Nkoj Siab) | ASTM A387 / ASME SA387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASME SA387 / ASTM A387 / ASTM A387 / ASTM A387 / ASME SA387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASME SA387 / ASTM A387 / ASTM A387 / ASTM A387 / ASTM A387 / ASME SA387 / ASTM A387 / ASME SA387 / ASTM A387 / ASME SA387) Cov ntawv xeem | Gr. 11, Cl.1 / Cl.2 | Vessels, Reactors, Nruas |
| European Phaj | TS EN 10028-2 | 13CrMo4-5 | Ib yam li A387 |
| Suav Phaj | wb 713 | 15 CrMoR | Ib yam li A387 |
| Seamless Yeeb Nkab | ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASTM A335 / ASME SA335 / ASTM A335 / ASTM A335 / ASME SA335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335 / ASTM A335 / ASME SA335) Cov ntawv pov thawj | P11 | High -kub kav |
| Forgings & Fittings | ASTM A182 / ASME SA182 | F11 | Flanges, luj tshib, li qub |
| Seamless Tube | ASTM A213 / ASME SA213 | T11 | Boiler raj, cua sov exchangers |
| General Alloy | UNS | K11789 | Hla - kev txheeb xyuas cov ntaub ntawv |
Kev txiav txim siab tseem ceeb: "Sib npaug" Tsis txhais tau tias "Txhim Hloov Hloov"
Thaum cov ntaub ntawv no zoo sib xws, lawv tsis tuaj yeem hloov pauv hauv kev tsim. Cov ntsiab lus tseem ceeb yuav tsum tau txheeb xyuas:
Txoj Cai Tswjfwm:Qhov project specification (xws li, ASME Section VIII, EN 13445) dictates cov qauv ntaub ntawv uas tso cai.
Cov Lus Qhia Tshwj Xeeb:Lub zog tsawg kawg nkaus, kev sim cuam tshuam (Charpy), kev kho cua sov (Class 1 vs. Class 2), thiab cov kab uas tso cai tau tuaj yeem sib txawv ntawm cov qauv.
Yam khoom:Cov khoom ntawm lub phaj (A387) txawv ntawm forging (A182) vim yog kev tsim khoom.
Xaus:Thawj qhov sib npaug thoob ntiaj teb rau ASTM A387 Qib 11 phaj yog EN 10028-2 13CrMo4-5. Rau lwm cov ntaub ntawv khoom hauv Teb Chaws Asmeskas cov qauv, cov qib sib npaug yog A335 P11 (pipe), A182 F11 (forgings), thiab A213 T11 (tube). Ib qho kev hloov pauv yuav tsum tau txais kev pom zoo los ntawm tus kws ua haujlwm lub luag haujlwm thiab ua raws li cov cai tsim kho thiab cov qauv tsim thawj.
A387 qib 11 yog dab tsi?
ASTM A387 specification yog tus qauv Specification rau Pressure Vessel Phaj, Alloy Steel, Chromium-Molybdenum npaj rau siv nyob rau hauv welded boilers thiab siab hlab ntsha tsim rau siab kub kev pab cuam. SSAB tuaj yeem muab A387 Qib 11 rau qhov kev xeem nruj rau Chav Kawm 1 thiab / lossis Chav Kawm 2.
Dab tsi yog qhov muaj pes tsawg leeg ntawm A387 steel?
Muaj pes tsawg leeg: ASTM A387 steel phaj feem ntau muaj chromium (txog 9% lossis ntau dua) thiab molybdenum (txog 2.25% lossis ntau dua), uas txhim kho lawv lub zog thiab corrosion kuj ntawm qhov kub thiab txias.
Qhov txawv ntawm A182 thiab A387 yog dab tsi?
Ob leeg ASTM A182 qib F11 chav kawm 2 thiab ASTM A387 qib 22 steel yog hlau alloys. Lawv muaj 99% siab heev ntawm lawv qhov nruab nrab alloy muaj pes tsawg leeg. Muaj 32 cov khoom siv nrog cov txiaj ntsig rau ob qho khoom siv. Cov khoom muaj txiaj ntsig rau ib qho khoom siv xwb (1, hauv qhov no) tsis qhia.
ASTM A387 Qib 11 sib npaug li cas?
ASTM A387 qib 11 sib npaug steel yog ASME SA387 qib 11. ASTM A387 qib 11 npog A387 qib 11 chav kawm 1 thiab A387 qib 11 chav kawm 2, uas sib npaug rau ASME SA387 qib 18 qib 71 thiab qib 12 raws.
Tag nrho cov specification thiab cov ntsiab lus muaj nyob rau ntawm kev thov. Cov ntaub ntawv saum toj no yog muab rau kev taw qhia nkaus xwb. Rau kev tsim tshwj xeeb thov hu rau peb cov neeg ua haujlwm muag khoom.
