Dab tsi yog qhov sib npaug European qib rau SA387 Qib 11 Chav Kawm 2?
SA387 Qib 11 Chav Kawm 2 yog ib qho qub thiab tempered chromium-molybdenum (Cr-Mo) alloy steel phaj tshwj xeeb tsim los rau kev tsim kho cov hlab ntsha siab thiab siab -kub cov khoom hauv kev xav tau kev pabcuam.
Qhov ze tshaj plaws thiab feem ntau lees txais European sib npaug rau SA387 Qib 11 Chav Kawm 2 yog 13CrMo4-5 (Cov Khoom Naj Npawb 1.7335) raws li tau teev tseg hauv tus qauv EN 10028-2: Cov khoom tiaj tus ua los ntawm cov hlau rau lub hom phiaj siab.
Cov ntsiab lus tseem ceeb ntawm qhov sib npaug:
| Feature | SA387 Qib 11 Chav Kawm 2 | European sib npaug: 13CrMo4-5 (1.7335) |
|---|---|---|
| Txuj | ASME SA387 / ASTM A387 Cov Lus Qhia | TS EN 10028-2 |
| Main Alloying | 1.25% Chromium, 0.5% Molybdenum | ~ 1.0-1.5% Chromium, 0.5-0.7% Molybdenum |
| Hom Mob | Normalized thiab Tempered (N&T) | Normalized thiab Tempered lossis Normalized (+ N lossis + NT) |
| Daim ntawv thov tseem ceeb | Siab -kub siab cov hlab ntsha | Siab -kub siab cov hlab ntsha & cov khoom |
Kev txiav txim siab tseem ceeb rau kev sib npaug ncaj qha:
1. Kev kho cua sov yog qhov tseem ceeb:
SA387 Qib 11 Chav Kawm 2 yog muab rau hauv cov xwm txheej zoo li qub thiab Tempered. Yuav kom sib npaug tag nrho, European 13CrMo4-5 phaj yuav tsum tau txiav txim nyob rau hauv lub normalized thiab tempered (+ NT) tus me nyuam. Nws yog feem ntau muab los ntawm txoj kev no, tab sis kev txheeb xyuas ntawm cov ntaub ntawv pov thawj yog qhov tseem ceeb.
2.Tsis yog 100% Zoo sib xws:
Thaum cov tshuaj muaj pes tsawg leeg thiab daim ntawv thov nyob ze heev, cov kev teev tseg rau cov ntsiab lus xws li Chromium, Molybdenum, thiab tensile lub zog tsis zoo ib yam. Rau ASME code kev tsim kho, cov khoom siv SA387 ib txwm yog cov kev cai tswjfwm . 13CrMo4-5 yog siv los ua qhov sib npaug nkaus xwb yog tias nws tau ntawv pov thawj kom ua tau raws li tag nrho cov kev cai ntawm SA387 Qib 11 Chav Kawm 2.
3. Cov ntaub ntawv pov thawj:
Rau lub nkoj siab ua rau ASME cov cai, lub phaj yuav tsum tau ntawv pov thawj thaum kawg raws li SA387. Daim ntawv pov thawj zeb xeem (MTC) rau 13CrMo4-5 rau EN 10204 3.1 lossis 3.2 yuav tsum tau tshuaj xyuas los ntawm tus kws tsim khoom thiab tus Kws Tshuaj Xyuas Tso Cai kom paub meej tias nws ua tau raws li tag nrho cov kev cai SA387.
Lwm Yam Khoom Siv Hauv Tebchaws Europe:
TS EN 10222-2 (Forgings): Qhov sib npaug forging specification yog 13CrMo4-5.
TS EN 10216-2 Cov kav dej sib npaug sib npaug seamless yeeb nkab specification yog 13CrMo4-5.
Tswv yim pom zoo:
Thaum muab cov khoom siv rau lub nkoj siab ASME, txoj kev nyab xeeb tshaj plaws yog qhia:
"SA387 Qib 11 Chav Kawm 2 rau ASME Tshooj II, Ntu A, lossis sib npaug European qib 13CrMo4-5 muab rau hauv cov xwm txheej zoo li qub thiab kub hnyiab thiab tau lees paub kom ua tau raws li txhua qhov kev xav tau ntawm SA387 Gr.11 Cl.2."
Qhov no ua kom tus neeg muag khoom nkag siab txog qhov yuav tsum tau muaj kev sib luag.
Hauv cov ntsiab lus
rau engineering thiab kev yuav khoom hauv teb chaws Europe, 13CrMo4-5 (1.7335) nyob rau hauv lub normalized thiab tempered mob yog suav hais tias yog tus ncaj haumxeeb sib npaug ntawm SA387 Qib 11 Chav Kawm 2 rau siab hlab ntsha daim ntaub ntawv.
1. SA387 Qib 11 Chav Kawm 2 yog dab tsi?
SA387 Qib 11 Chav Kawm 2 yog ib qho qub thiab tempered chromium-molybdenum (1¼Cr-½Mo) alloy steel phaj tsim los rau siab -kub siab cov hlab ntsha, muab lub zog siab dua li Chav Kawm 1 thaum tswj kev zoo weldability thiab creep kuj nyob rau hauv refinery kev pab cuam.
2. Cov khoom siv kho tshuab ntawm SA387 Qib 11 Chav Kawm 2 yog dab tsi?
Nyob rau hauv nws qhov normalized thiab tempered mob, SA387 Qib 11 Chav Kawm 2 muab lub zog tensile ntawm 485–620 MPa (70–90 ksi) thiab qhov tsawg kawg nkaus tawm lub zog ntawm 275 MPa (40 ksi), ua rau nws haum rau siab - kev nyuaj siab, elevated - kub tsim
3. SA387 Qib 11 Chav Kawm 2 txawv li cas ntawm Chav Kawm 1?
Class 2 yog normalized thiab tempered rau siab dua li -suplied zog, thaum Class 1 yog annealed rau siab tshaj formability; ob leeg sib koom tib yam tshuaj muaj pes tsawg leeg tab sis raug xaiv raws li fabrication xav tau kev pab thiab tsim kom muaj kev ntxhov siab.
4. Qhov kev pabcuam siab tshaj plaws rau SA387 Qib 11 Chav Kawm 2 yog dab tsi?
SA387 Qib 11 Chav Kawm 2 feem ntau yog siv hauv kev pabcuam txuas ntxiv mus txog 595℃(1100℃F), qhov twg nws cov ntsiab lus chromium thiab molybdenum muab kev tiv thaiv zoo rau oxidation thiab hydrogen nres.
5. Dab tsi yog cov ntawv thov rau SA387 Qib 11 Chav Kawm 2 daim hlau?
Qib no yog siv dav hauv hydrotreaters, hydrocrackers, heat exchangers, thiab lwm yam siab -kub siab cov hlab ntsha hauv petrochemical refineries thiab fais fab - tiam.
6. Cov txheej txheem vuam dab tsi yuav tsum tau ua rau SA387 Qib 11 Chav Kawm 2?
Vuam yuav tsum tau qis -hydrogen electrodes, preheating (150–205℃/ 300–400℃F), thiab yuav tsum tau post-weld heat treatment (PWHT) nyob ib ncig ntawm 620–690℃(1150–1275℃F) los tiv thaiv kev tawg thiab rov ua kom corrosion.
7. Qhov sib npaug European qib rau SA387 Qib 11 Chav Kawm 2 yog dab tsi?
Qhov sib npaug nyob sab Europe zoo tshaj plaws yog 13CrMo4-5 (1.7335) raws li EN 10028-2, uas muaj cov ntsiab lus zoo sib xws thiab feem ntau muab nkag rau hauv ib qho xwm txheej thiab tempered.
8. SA387 Qib 11 Chav Kawm 2 piv rau Qib 22 li cas?
Qib 11 (1.25Cr-0.5Mo) muaj qis dua - qhov kub thiab txias zog thiab hydrogen tsis kam tshaj Qib 22 (2.25Cr-1Mo), ua rau nws muaj txiaj ntsig zoo rau kev pab cuam nruab nrab hauv kev ua kom zoo thiab cov txheej txheem tshuaj lom neeg.
9. Charpy cuam tshuam dab tsi rau SA387 Qib 11 Chav Kawm 2 yog dab tsi?
Charpy V-notch impact test feem ntau teev los ntawm cov neeg yuav khoom; Cov kev xav tau ntau tshaj yog 20 J (15 ft-lb) qhov nruab nrab qhov nruab nrab ntawm qhov kub ntawm +10℃F thiab -20℃F (–12℃txog -29 degree) rau kev siv lub nkoj siab.
10. Qhov txawv ntawm SA387 Qib 11 Chav Kawm 2 thiab AISI 4130 yog dab tsi?
Thaum ob qho tib si yog Cr-Mo steels, SA387 Qib 11 Chav Kawm 2 yog cov khoom siv phaj rau cov hlab ntsha siab nrog cov kev cai nruj thiab kev sim, qhov AISI 4130 yog lub hom phiaj dav dav / bar alloy nrog cov khoom sib txawv thiab kev siv.
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.
