Dab tsi yuav tsum tau ceev faj thaum vuam ASME SA387 Qib 22 Chav Kawm 2?
Thaum vuamASME SA387 Qib 22 Chav Kawm 2, cov kev ceev faj tseem ceeb suav nrogtswj cov khoom siv hluav taws xob (preheat, interpass temps, qis cua sov), xaiv qhov tsim nyog qis - hydrogen muab tub lim hlau (xws li npib tsib xee-raws li cov pob qij txha sib txawv), xyuas kom huv, tswj cov hlaws geometry, thiab ua haujlwm tom qab-weld heat treatment (PWHT) los tiv thaiv kev tawg, nrog rau cov qauv kev nyab xeeb PW.
Peb muab ASME SA387 Qib 22 Chav Kawm 2 daim hlau rau cov neeg tsim khoom ua haujlwm rau kev lag luam roj, roj thiab petrochemical. Cov kev lag luam no xav tau lub siab lub nkoj qib steel uas ua haujlwm zoo hauv qhov kub thiab txias thiab peb cov khoom siv rau lub hom phiaj no zoo. Thiab nrog zoo corrosion thiab oxidation kuj, SA387 Qib 22 Class 2 daim hlau yog ib qho kev xaiv zoo.
ASME SA 387 Gr . 22yog ib qho chromium-molybdenum alloy uas yog tsim los siv rau hauv cov ntawv thov kub.SA 387 Gr. 22 Cl . 2kuj yog lub siab hlab ntsha qib steel uas yog tsim los ua haujlwm hauv qhov kub thiab txias. Qhov zoo tshaj plaws corrosion thiab oxidation tsis kam uas nwsSA 387 Qib 22tso cai rau nws siv tau hauv kev lag luam roj, roj thiab petrochemical. Cov ntsiab lus molybdenum nyob rau hauv cov alloy pab ua kom cov alloys tensile lub zog ntawm siab kub. Cov Hlau hom bears ntau dua kub tsis kam thaum piv rau lwm cov carbon steels.
Cov yam ntxwv tseem ceeb
Hom khoom: Chromium-Molybdenum (Cr-Mo) Alloy Steel.
Daim ntawv thov: Feem ntau rau cov welded boilers, cov hlab ntsha siab, thiab cov kav dej hauv qhov kev pabcuam kub siab.
Qib 22: Qhia meej txog cov ntsiab lus chromium (Cr), feem ntau 2.00-2.50%.
Chav kawm 2: Qhia txog cov khoom siv dag zog ntau dua piv rau Chav Kawm 1.
Cov txiaj ntsig: Zoo siab - kub ua haujlwm, corrosion kuj, oxidation kuj, thiab weldability.
Chemical Composition (Tswj)
Carbon (C): 0.05 - 0.15%
Manganese (Mn): 0.30 - 0.60%
Chromium (Cr): 2.00 - 2.50%
Molybdenum (Mo): 0.90 - 1.10%
Phosphorus (P) & Sulfur (S): Max 0.025% txhua.
Kev siv kev lag luam
Qib no yog qhov tseem ceeb hauv cov roj thiab roj, tshuaj, thiab petrochemical kev lag luam, qhov twg cov cuab yeej yuav tsum tiv taus qhov kub thiab txias, feem ntau nyob rau hauv qaub (H₂S) roj ib puag ncig.
ASME SA387 GR 22 CLASS 2 Phaj Specification
Qib: ASTM A387 Gr 22 CL.2 Alloy Steel Phaj
TxujQauv: ASTM A387 / ASME SA387
DavNtev: 1000mm-4500mm
ThicknessLoj: 5mm-150mm
NtevNtev: 3000mm-18000mm
Impact kuajKub: -52 ° C
Txheej txheem: Kub-Rolled (HR)
Puas yog ASME SA387 Qib 22 Qib 2 carbon steel?
Tsis yog, ASME SA387 Qib 22 Chav Kawm 2 tsis yog carbon hlau; nws yog chromium-molybdenum (Cr-}Mo) alloy steel, hom carbon alloy steel, tshwj xeeb yog tsim los rau siab - qhov kub thiab txias kev pabcuam hauv cov hlab ntsha thiab boilers vim nws txhim kho corrosion kuj thiab lub zog ntawm qhov kub siab. Thaum nws yog raws li cov pa roj carbon steel, qhov sib ntxiv ntawm chromium (nyob ib ncig ntawm 2.00-2.50%) thiab molybdenum (0.90-1.10%) ua rau nws cov qib alloy sib txawv rau kev thov kev lag luam xws li roj, roj, thiab cov nroj tsuag petrochemical.
Dab tsi yog daim ntawv thov kev lag luam ntawm ASME SA387 Qib 22 Chav Kawm 2?
ASME SA387 Qib 22 Chav Kawm 2 steel yog chromium-molybdenum alloy feem ntau siv hauv cov hlab ntsha siab, boilers, thiab cov cua kub sib txawv hauv cov roj & roj, petrochemical, thiab hluav taws xob tsim kev lag luam vim nws lub zog zoo heev, ductility, thiab tsis kam mus rau kub thiab corrosion, nrog rau hauv cov roj qaub ib puag ncig. Cov ntawv thov tseem ceeb suav nrog cov reactors, kav dej, turbines, thiab lwm yam khoom siv uas xav tau kev ua tau zoo hauv qab siab siab thiab thermal stress.
ASME SA387 Qib 22 Chav Kawm 2 yog dab tsi?
ASME SA387 Qib 22 Chav Kawm 2 yog chromium-molybdenum (Cr-Mo) alloy steel phaj rau siab- qhov kub thiab txias kev pabcuam, feem ntau rau cov hlab ntsha siab thiab boilers hauv cov roj, roj, thiab tshuaj lom neeg kev lag luam, muab cov cua sov zoo heev, corrosion resistance, thiab weldability 5%. thiab kev kho cua sov (normalized & tempered) yuav tsum tau ua kom muaj zog thiab kav ntev.
Sib npaug rau ASME SA387 Qib 22 Alloy Steel Phaj
| BS | EN | ASTM / ASME | DIN |
| 622-515B | 10 ZPO 910 | SA387-22-2 | 10 ZPO 910 |
Specifications rau ASME SA387 Qib 22 Alloy Steel Phaj
| Lub npe | Nominal Chromium Cov ntsiab lus (%) |
Nominal Molybdenum Cov ntsiab lus (%) |
| SA387 Qib 22 | 2.25% | 1.00% |
| Lub npe | Nominal Chromium Cov ntsiab lus (%) | Nominal Molybdenum Cov ntsiab lus (%) |
|---|---|---|
| A387 Qib 22 | 2.25% | 1.00% |
ASME A387 GR 22 CLASS 2 Tshuaj muaj pes tsawg leeg
| Qib | C | Mn | P | S | Si | Cr | Mo |
| A387 Gr.22 | 0.05-0.15 | 0.30-0.60 | 0.035 | 0.035 | 0.50 max | 2.00-2.50 | 0.90-1.10 |
Tensile Requirements rau ASME SA387 Qib 22 Alloy Steel Phaj Chav Kawm 2 Phaj
| Lub npe: | Yuav tsum muaj: | Qib 22 |
| SA387 Qib 22 | Tensile zog, ksi [MPA] | 75 txog 100 [515 rau 690] |
| Yield zog, min, ksi [MPa] / (0.2% offset) | 45 [310] | |
| Elongation hauv 8 nti. [200mm], min % | ... | |
| Elongation hauv 2 nti [50mm], min, % | 18 | |
| Txo thaj tsam, min% | 45 ( ntsuas ntawm cov qauv puag ncig) 40 ( ntsuas ntawm cov qauv tiaj tus) |
1. ASME SA387 Qib 22 Chav Kawm 2 sib npaug li cas?
ASME SA387 Qib 22 Chav Kawm 2 yog sib npaug rau ASTM A387 Qib 22 Chav Kawm 2, thiab thoob ntiaj teb, nws qhov kev sib tw ze tshaj plaws yog EN 10CrMo9-10, nrog rau lwm qhov sib npaug suav nrog BS 622-515B thiab Fabkis 10mobdenlyium alloy steel 10mobdenium alloy. high-temperature siab hlab ntsha thiab boilers.
2. Qhov txawv ntawm ASME SA387 Qib 22 Chav Kawm thiab ASME SA387 Qib 22 Chav Kawm 1 yog dab tsi?
ASME SA387 Qib 22 Chav Kawm 1 thiab Chav Kawm 2 yog ob qho tib si chromium-molybdenum alloy steels rau qhov kub siab, tab sis qhov sib txawv tseem ceeb nyob hauv lawv cov khoom siv kho tshuab (lub zog); Chav Kawm 2 muaj zog tensile ntau dua (75-100 ksi vs. 60-85 ksi) thiab tawm lub zog (45 ksi vs . 30 ksi) piv rau Chav Kawm 1, thaum tuav cov elongation zoo sib xws, ua rau Chav Kawm 2 haum rau kev xav tau ntau dua - qhov kub thiab txias, kev siv siab.
3. Dab tsi yog daim ntawv thov ntawm ASME SA387 Qib 22 Chav Kawm 2?
ASME SA387 Qib 22 Chav Kawm 2 steel yog chromium-molybdenum alloy feem ntau siv hauv cov hlab ntsha siab, boilers, thiab cov cua kub sib txawv hauv cov roj & roj, petrochemical, thiab hluav taws xob tsim kev lag luam vim nws lub zog zoo heev, ductility, thiab tsis kam mus rau kub thiab corrosion, nrog rau hauv cov roj qaub ib puag ncig. Cov ntawv thov tseem ceeb suav nrog cov reactors, kav dej, turbines, thiab lwm yam khoom siv uas xav tau kev ua tau zoo hauv qab siab siab thiab thermal stress.
4. Dab tsi yog qhov nyuaj ntawm ASME SA387 Qib 22 Chav Kawm 2?
ASME SA387 Qib 22 Chav Kawm 2 tsis muaj qhov yuav tsum tau ua kom nruj yam tsawg kawg nkaus hauv thawj ASME / ASTM specification tab sis feem ntau ntog nyob rau hauv thaj tsam ntawm 130 txog 170 Brinell (HB) tom qab kev kho cua sov, muab lub zog tensile zoo (75-100 ksi) thiab yam tsawg kawg nkaus yield zog (45 ksi, nrog rau kev siv zog kawg ntawm cov txheej txheem siab) tempering.
5. Tus lej P ntawm ASME SA387 Qib 22 yog dab tsi?
Rau ASME SA387 Qib 22 alloy hlau, P-Tus lej yog P5A, vim nws yog chromium-molybdenum steel (ze li 2.25% Cr, 1% Mo) cais raws li ASME Tshooj IX rau vuam, nrog rau "A" qhia tias nws yog ferritic / ferritic pawg ntau hom nkoj steels.
6. ASME SA387 Qib 22 Chav Kawm 2 kev kub ceev hlau yog dab tsi?
ASME SA387 Qib 22 Chav Kawm 2 yog chromium-molybdenum alloy steel phaj tsim rau siab- kev pabcuam kub hauv cov hlab ntsha thiab cov boilers, muab cov cua sov ua haujlwm zoo, oxidation, thiab corrosion kuj vim nws cov ntsiab lus chromium thiab molybdenum, nrog rau 'Class 2' qhia tias muaj zog ntau dua (10 kield, 4 kW) dua li Chav Kawm 1. Nws yog cov khoom siv zoo rau cov roj, roj, thiab tshuaj lom neeg kev lag luam, paub txog qhov zoo weldability thiab kev ua tau zoo nyob rau hauv kev ntxhov siab.
7. Dab tsi vuam pas nrig rau ASME SA387 Qib 22 Chav Kawm 2?
Rau vuam ASME SA387 Qib 22 Chav Kawm 2, koj xav tau qis- alloy muab tub lim hlau sib piv cov hlau hauv paus 2.25% Chromium, 1% Molybdenum muaj pes tsawg leeg, nrog rau cov kev xaiv ntau xws li E9018-B3 (SMAW), ER90S-BENSAW3 (GMAW), Tshaj tawm -Weld Heat Treatment (PWHT) zoo li kev ntxhov siab, vim tias cov Cr-Mo steel no ua rau tawg.
Yog xav paub ntxiv txog GNEE cov khoom siv hlau, tiv tauj peb ntawm info@gneesteels.com . Peb tos ntsoov yuav ua haujlwm nrog koj.
