SA387 Qib 22 Chav Kawm 2 cov qauv sib npaug
SA387 Qib 22 Chav Kawm 2 yog qib tshwj xeeb ntawm chrome-molybdenum (Cr-Mo) alloy steel phaj tsim rau siab- kub thiab siab- kev pabcuam siab. Nws feem ntau yog siv rau hauv kev tsim cov hlab ntsha siab, boilers, thiab reactors hauv kev lag luam xws li roj refineries, petrochemical cov nroj tsuag, thiab lub zog tsim.
Thawj qhov sib npaug ntawm SA387 Qib 22 Chav Kawm 2
| Txuj | Lub npe | Xwm Txheej / Ceeb Toom |
|---|---|---|
| ASME | SA387 Qib 22 Chav Kawm 2 | Ib yam. ASME txais yuav ASTM specification rau kev siv code. |
| EN / Europe | EN 10028-2: 13CrMo9-10 (1.7380) | Normalized (+ N) lossis normalized & tempered (+ NT). Qhov feem ntau sib npaug European. |
| ISO | ISO 9328-2: 13CrMo9-10 | Raws li tus qauv EN. |
| JIS / Nyiv | JIS G4118: SCMV 28 | Chromium{0}}Molybdenum hlau rau cov hlab ntsha siab; normalized & tempered mob. |
Lwm Yam Kawm Qib Siab/Sib Piv
DIN / Lub teb chaws Yelemees (Kub): 13CrMo9-10 (1.7380) - Ua ntej rau tus qauv EN.
GB / Tuam Tshoj: 15CrMoR - Ib hom Suav siab lub nkoj steel. Lus Cim: Nws muaj cov ntsiab lus Cr qis me ntsis (~ 1.2-1.5% Cr) thiab tsis yog cov tshuaj lom neeg zoo meej, tab sis feem ntau siv rau hauv cov ntawv zoo sib xws. Qhov sib npaug Suav ze dua yog 12Cr2Mo1R, uas zoo sib xws rau 2.25Cr-1Mo muaj pes tsawg leeg.
UNS Tus Naj Npawb: K21590 - Tus lej Unified Numbering System ID.
Cov ntsiab lus tseem ceeb ntawm "Equivalence"
1.Condition yog qhov tseem ceeb:"Class 2" tshwj xeeb txhais tau tias Normalized & Tempered. Txhua qhov sib npaug yuav tsum nyob rau hauv tib lub tshav kub- kho mob (xws li, + NT hauv EN cov qauv).
2.Narrow vs. Open Standards:SA387 yog ib qho tshwj xeeb, nqaim - cov khoom siv rau cov hlab ntsha siab. Cov qauv hlau dav dav (xws li ASTM A387's counterpart, ASTM A335 P22 rau cov yeeb nkab) tsis yog qhov sib npaug ncaj qha rau daim ntawv thov phaj.
3.Code & Certification:Rau kev hloov pauv hauv kev tsim khoom, qhov sib npaug xaiv yuav tsum raug lees txais los ntawm txoj cai tsim qauv (piv txwv li, ASME BPVC, PED) thiab pom zoo los ntawm tus kws ua haujlwm lub luag haujlwm. Certified mill test reports (MTRs) ua pov thawj tias kev ua raws cai yog qhov yuav tsum tau ua.
Hauv cov ntsiab lus, qhov ze tshaj plaws thoob ntiaj teb sib npaug yog:
Europe / ISO: 13CrMo9-10 (1.7380) hauv + NT mob.
Nyiv: SCMV 28.
Ib txwm txheeb xyuas cov tshuaj muaj pes tsawg leeg thiab cov khoom siv kho tshuab los ntawm daim ntawv pov thawj zeb tiv thaiv qhov project specifications ua ntej yuav txais cov khoom sib npaug.
1. SA387 Qib 22 Chav Kawm 2 yog dab tsi?
SA387 Qib 22 Chav Kawm 2 yog ib qho kev qhia tshwj xeeb rau chromium-molybdenum alloy steel daim hlau feem ntau siv hauv cov hlab ntsha siab thiab lwm yam siab - cov ntawv thov kev pabcuam kub.
2. Cov tshuaj muaj pes tsawg leeg ntawm SA387 Qib 22 Chav Kawm 2 yog dab tsi?
Nws muaj pes tsawg leeg muaj xws li chromium (2.00-2.50%), molybdenum (0.90-1.10%), nrog carbon, manganese, phosphorus, sulfur, thiab silicon ua rau seem.
3. Dab tsi yog cov khoom siv kho tshuab ntawm SA387 Gr 22 Cl 2?
Cov khoom tseem ceeb muaj xws li lub zog tensile yam tsawg kawg nkaus ntawm 515 MPa (75 ksi) thiab qhov tsawg kawg nkaus yield zog ntawm 310 MPa (45 ksi) rau cov phaj siab tshaj 65 hli tuab.
4. Qhov txawv ntawm SA387 Qib 22 Chav Kawm 1 thiab Chav Kawm 2 yog dab tsi?
Thawj qhov sib txawv yog kev kho cua sov; Cov khoom siv hauv chav kawm 2 yuav tsum tau muab nkag rau hauv cov xwm txheej zoo li qub thiab kub ntxhov, thaum Chav Kawm 1 tsis muaj qhov yuav tsum tau ua, cuam tshuam rau nws lub zog thiab microstructure.
5. Qhov kev pabcuam siab tshaj plaws rau SA387 Qib 22 yog dab tsi?
SA387 Qib 22 feem ntau yog siv rau kev pabcuam kub txog li 550℃(1022℃F), tab sis cov kev txwv tshwj xeeb yog nyob ntawm qhov siab thiab kev ntxhov siab.
6. Puas yog SA387 Qib 22 Chav Kawm 2 sib npaug rau lwm qib khoom siv?
Yog lawm, nws yog dav sib npaug rau ASTM A387 Gr22 Cl2, ASME SA387 Gr22 Cl2, thiab cov khoom siv wrought qib UNS K21590.
7. Yuav ua li cas rau vuam SA387 Qib 22 Chav Kawm 2 hlau?
Vuam feem ntau yuav tsum tau ua ntej- cua sov thiab tom qab-weld heat treatment (PWHT). Common filler metals muaj xws li AWS E9015-B3 rau SMAW lossis cov qhab nia sib raug rau lwm cov txheej txheem kom phim lub hauv paus hlau cov khoom.
8. Kev kho cua sov rau SA387 Gr22 Cl2 yog dab tsi?
SA387 Qib 22 Chav Kawm 2 daim hlau tau muab tso rau hauv qhov qub (ntawm 1650-1750℃F) thiab tempered (ntawm 1250-1350℃F) mob kom ua tiav cov khoom siv kho tshuab.
9. Qhov twg yog SA387 Qib 22 Chav Kawm 2 nquag siv?
Nws yog dav siv nyob rau hauv fabrication ntawm siab hlab ntsha, boilers, thiab reactors rau lub hwj chim tiam, petrochemical, thiab roj & roj industries, tshwj xeeb tshaj yog rau cov khoom raug kub thiab siab.
10. Dab tsi yog qhov yuav tsum muaj hardness rau SA387 Qib 22 Chav Kawm 2?
Thaum lub ASTM / ASME specification tsis txwv ib tug hardness, nws yog feem ntau tswj thaum lub sij hawm kho cua sov. Ib qho kev xav tau hauv kev pabcuam yog kom muaj qhov siab tshaj plaws, feem ntau 225 Brinell (HBW) lossis qis dua, txhawm rau tiv thaiv cov teeb meem xws li hydrogen-induced cracking.
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.
