ASME SA387 Gr.22 Hlau Phaj Taw Qhia
ASME SA387 Qib 22 yog chromium-molybdenum (Cr-Mo) alloy siab nkoj steel phaj tsim raws li ASME SA387 specification. Nrog rau cov nominal alloy muaj pes tsawg leeg ntawm 2.25% Chromium thiab 1.0% Molybdenum, nws nthuav tawm tshwj xeeb nce siab -kub lub zog, creep tsis kam, oxidation tsis kam, thiab superior tsis kam mus rau High -Temperature Hydrogen Attack (HTHA) piv rau cov qauv carbon steel daim hlau. Cov khoom no ua rau nws cov khoom siv zoo tshaj plaws rau cov khoom siv ua haujlwm ntawm qhov kub txog li 600 degree.
Txawm li cas los xij, tsis muaj tus nqi lag luam ruaj khov rau SA387 Gr. 22 steel daim hlau. Qhov kawg ntawm ib-tuj lossis ib-kilogram tus nqi nyob ntawm ntau qhov sib txawv, suav nrog cov phaj tuab, kev xa khoom-tshwj xeeb yog tias muab raws li -Rolled lossis nyob rau hauv Normalized thiab Tempered (N+T) condition- kuaj ultrasonic (UT), qhov yuav tsum tau ua, thib peb -TPI), kev tshuaj xyuas qhov ntim, qhov kev txiav txim thib peb, thiab export lub hom phiaj. Kev nkag siab txog tus nqi tsav tsheb no tso cai rau cov neeg yuav khoom los ntsuas cov lus hais kom raug thiab ua tiav qhov kev sib npaug ntawm kev ua tau zoo, kev ua tau zoo, thiab kev siv nyiaj txiag.
Nrhiav qhov tseeb hais? Tsuas xa tuaj rau peb qhov koj xav tau specifications, qhov ntev, kom muaj nuj nqis, thiab qhov chaw nres nkoj. Peb pab neeg ua haujlwm engineering tuaj yeem muab cov ncauj lus kom ntxaws hauv 12 teev, nrog rau cov lus pom zoo thiab tus nqi tshaj - cov khoom siv tau zoo.
ASME SA387 Gr.22 Steel Phaj Nqe
| Specification | FOB Nqe (USD / ton) | Tus nqi sib npaug (USD / kg) |
|---|---|---|
| Kub- Rolled Phaj (6–40 mm), Normalized & Tempered (N + T) | $850–$1,100 | $0.85–$1.10 |
| Medium & Heavy Phaj (40-150 mm), nrog Ultrasonic Testing (UT) | $950–$1,450 | $0.95–$1.45 |
| Txiav- mus rau -Size Phaj (Nplaim lossis CNC txiav) | $1,150–$1,650 | $1.15–$1.65 |
| Post Weld Thaum tshav kub kub kho (PWHT) phaj | $1,250–$1,650 | $1.25–$1.65 |
| Customized High -Specification Plate (piv txwv li, HIC Tested) | Mus txog $1,700 | Mus txog $1.70 |
Dab tsi cuam tshuam rau tus nqi ntawm ASME SA387 Gr.22 Steel Phaj?
| Qhov xwm txheej | Kev cuam tshuam rau tus nqi |
|---|---|
| Tus nqi raw khoom | Kev hloov pauv hauv chromium thiab molybdenum tus nqi ncaj qha cuam tshuam rau cov nqi hlau hlau ntau lawm. |
| Phaj Thickness | Cov phaj tuab xav tau lub sijhawm dov ntev dua, cov khoom siv hlau ntau dua, thiab cov nqi ua haujlwm ntau ntxiv. |
| Kev kho cua sov | Normalizing thiab Tempering (N + T) nce lub sij hawm ntawm lub cub tawg, kev siv hluav taws xob, thiab cov nqi tshuaj xyuas. |
| NDT Requirements | Ultrasonic Testing (ASTM A578), PMI, thiab kev ntsuam xyuas feem ntau ntxiv2–5%rau cov nqi tsim khoom, nyob ntawm qib tshuaj ntsuam thiab qhov project yuav tsum tau ua. |
| Thib peb-Kev soj ntsuam tog | Kev lees paub los ntawm SGS, BV, DNV, ABS, LR, lossis TÜV ntxiv cov nqi tshuaj xyuas thiab cov ntaub ntawv. |
| Cov ntsiab lus xa khoom | FOB, CIF, thiab DDP cov lus hais txawv vim kev thauj khoom, kev pov hwm, kev lis kev cai, thiab cov nqi xa mus. |
Vim li cas ASME SA387 Gr. 22 Tsim nyog tus nqi siab dua?
Txawm hais tias ASME SA387 Qib 22muaj tus nqi pib yuav ntau dua li cov pa roj carbon steel phaj xws li ASTM A516 Qib 70, nws qhov kev ua tau zoo tshaj plaws nyob rau hauv siab -kub siab lub nkojcov ntawv thov xa cov txiaj ntsig ntev dua - lub sij hawm.
- Superior Elevated -Temperature Strength:Nrog rau 2.25% Cr-1.0% Moalloy muaj pes tsawg leeg, SA387 Gr. 22 khaws cia zoo heev txhua yam muaj zog thiab creep kujntawm qhov kub thiab txias. Nws yog dav teev rau cov hlab ntsha siab ua haujlwm ntawm kwv yees li 540-580 degree, qhov kub thiab txias qhov twg cov pa roj carbon steels muaj kev cuam tshuam sai ntawm microstructural degradation thiab txo qhov kev ntxhov siab loj.
- Txhim khu kev tiv thaiv kom siab -Tub kub Hydrogen Attack (HTHA): Qhov no chromium-molybdenum alloy chemistry muab kev tiv thaiv tseem ceeb rau High-Tub kub Hydrogen Attack (HTHA). Qhov no ua rau SA387 Gr. 22 tus qauv nyiam cov khoom siv rau kev pabcuam hydrogen, hydroprocessing units, hydrocrackers, thiab lwm yam khoom siv refinery raug rau siab - kub, siab - siab hydrogen ib puag ncig hauv kev ua raws li API RP 941..
- Extended Equipment Service Lub neej: Thaum tsim kom raug, tsim, thiab cua sov- kho, cov hlab ntsha siab tsim nrog SA387 Gr. 22 muab qhov tsis sib xws ntev - lub sijhawm kev ntseeg siab nyob rau hauv kev ua haujlwm hnyav. Nws superior thermal stability drastic txo cov khoom degradation, txo cov nqi lifecycle tshaj tag nrho cov tsim lub neej ntawm cov khoom.
- Txo cov nqi tu thiab ua haujlwm tsawg:Piv nrog cov pa roj carbon steel daim hlau, siv SA387 Gr. 22 txo qis:
- Creep deformation thaum lub sij hawm ntev - lub sij hawm, elevated - kub kev pab cuam
- Cov khoom degradation thiab embrittlement tshwm sim los ntawm kev raug thermal ntev
- Unplanned shutdowns thiab ua hauj lwm txij nkawm zaus
- Kho, hloov kho, thiab hloov cov nqi rau cov cuab yeej siv siab
ASME SA387 Gr.22 Steel Phaj Specification
| Yam khoom | Specification |
|---|---|
| Khoom Txheem | ASME SA387 / ASTM A387 Cov Lus Qhia |
| Qib Steel | SA387 Qib 22 Chav Kawm 1 / Chav Kawm 2 |
| Thickness | 6-250 hli |
| Dav | 1,000–4,000 mm |
| Ntev | 3,000–18,000 mm |
| Kev Xa Khoom | Raws li Rolled (AR), Normalized (N), Normalized & Tempered (N + T)(raws li qib / chav kawm thiab cov neeg siv khoom xav tau) |
| Mill Test Certificate | EN 10204 Hom 3.1 / Hom 3.2 |
| Thib peb-Kev soj ntsuam tog | SGS, BV, DNV, TÜV, ABS, LR, thiab lwm lub koom haum soj ntsuam tau tso cai |
| Txiav Service | Nplaim txiav, Plasma txiav, CNC txiav |
| Fabrication Service | Beveling, Drilling, Ntug Milling, Rolling, Forming |
ASME SA387 Gr.22 Steel Phaj Chemical Composition
| Qib | C | Mn | P | S | Si | Cr | Mo |
| A 387 gr . 22 | 0.04 – 0.15 | 0.25 – 0.66 | 0.035 | 0.035 | 0.5 max | 1.88 – 2.62 | 0.85 – 1.15 |
ASME SA387 Gr.22 Steel Phaj Mechanical Property
| A387 / SA387 Qib 22 | Chav Kawm 1 | Chav kawm 2 |
| Tensile zog (ksi) | 60-85 | 75-100 |
| Tensile zog (MPa) | 415-585 | 515-690 |
| Yield zog (ksi) | 30 | 45 |
| Yield zog (MPa) | 205 | 310 |
| Elongation hauv 200mm (%) | – | – |
| Elongation hauv 50mm (%) | 18 | 18 |
| Txo thaj tsam hauv% | 45 | 45 |
ASME SA387 Gr.22 Hlau Phaj Cov Ntawv Thov
Petrochemicals: Hydroprocessing reactors, siab -pressure heat exchangers, coking towers
Acid gas processing: Cov khoom siv desulfurization, acid gas pabcuam nkoj
Kev lag luam fais fab: Thermal power plant boilers, steam drums, high -kub headers
Offshore engineering: Siab- cov khoom siv siab rau cov chaw ua haujlwm sab nrauv
Cov khoom tseem ceeb: High-kub li qub, flanges, thiab yeeb nkab fittings
Hais txog GNEE Steel
GNEE Steel yog tus kws tshaj lij ntawm cov khoom siv steel nrog ntau tshaj 18 xyoo ntawm kev lag luam kev lag luam, headquartered hauv Tianjin, Suav. Peb tshwj xeeb hauv kev muab thiab ua cov hlau phaj rau boilers thiab cov hlab ntsha siab, pab 600+ cov neeg siv khoom thoob plaws 100+ lub teb chaws thoob ntiaj teb.
- Ex-Tshuag Supply:Peb muab kev xa sai sai ntawm cov hlab ntsha steel phaj los ntawm cov khoom lag luam rau cov neeg siv khoom nyob rau sab hnub tuaj Asia thiab thoob plaws ntiaj teb, txo cov sij hawm xa khoom.
- Custom processing:Peb muab laser, plasma, thiab CNC txiav, nrog rau kev tsim cov kev pabcuam, kom txo cov khoom pov tseg rau peb cov neeg siv khoom.
- Quality Assurance:Txhua pawg ntawm cov hlau phaj tuaj nrog EN 10204 3.1/3.2 daim ntawv pov thawj cov ntaub ntawv thiab txhawb nqa thib peb-kev tshuaj ntsuam xyuas (piv txwv li, SGS).
- Kev pab txhawb nqa:Peb pab pawg kws tshaj lij engineers muab cov lus qhia txog kev xaiv cov khoom siv, cov lus pom zoo tshwj xeeb, thiab kev sib tham txog kev daws teeb meem.
- Cov qauv dawb:Peb muab cov qauv khoom siv rau cov neeg siv khoom kuaj thiab kuaj xyuas.
Nrhiav kev txiav- rau- loj SA387 Qib 22 daim hlau rau kev tsim cov hlab ntsha siab? GNEE muab kev cai txiav, beveling, machining, UT xeem, thiab export ntim los pab txo cov sij hawm fabrication thiab tag nrho cov nqi yuav khoom.
FAQ
Q: Qhov txawv ntawm ASME SA387 Qib 22 Chav Kawm 2 thiab Qib 91 Chav Kawm 2 yog dab tsi?
A: ASME SA387 Qib 22 Chav Kawm 2 thiab Qib 91 Chav Kawm 2 yog ob qho tib si chromium-molybdenum alloy steel phaj siv rau siab -kub siab cov hlab ntsha. Qhov sib txawv tseem ceeb yog lawv cov tshuaj muaj pes tsawg leeg thiab lub zog: Qib 91 muaj cov carbide muaj zog dua - tsim cov ntsiab lus (vanadium thiab niobium) thiab muab cov txiaj ntsig zoo dua thiab lub zog tensile rau qhov kub thiab txias.
Q: Puas yog SA387 Qib 22 Chav Kawm 2 muaj zog dua Qib 5 Chav Kawm 2?
A: Tsis yog, lawv muaj lub zog tib yam nkaus xwb. Ob leeg ASME / ASTM SA387 Qib 22 Chav Kawm 2 thiab SA387 Qib 5 Chav Kawm 2 yog tsim los ua haujlwm hnyav -cov ntawv thov lub nkoj siab thiab sib faib cov kev xav tau ntawm lub zog zoo ib yam.
Q: Puas yog SA387 Qib 22 Chav Kawm 2 raug nqi ntau dua li Chav Kawm 1?
A: Yog lawm, SA387 Qib 22 Chav Kawm 2 feem ntau raug nqi ntau dua Chav Kawm 1. Thaum ob qho tib si sib xyaw cov tshuaj muaj pes tsawg leeg, Chav Kawm 2 cov phaj tau txais kev kho cua sov ntxiv (xws li normalizing thiab tempering lossis quenching thiab tempering) kom ua tiav siab dua tensile thiab yield zog, uas ua rau cov nqi ntau lawm.
Q: Puas SA387 Qib 22 hloov Qib 11?
A: Yog lawm, SA387 Qib 22 feem ntau yog qhov tsim nyog thiab feem ntau zoo dua rau Qib 11, vim nws muaj cov feem pua ntawm chromium thiab molybdenum ntau dua. Qhov no tso cai rau nws los tswj qhov kub thiab txias dua. Txawm li cas los xij, kev hloov pauv tsis siv neeg thiab nyob ntawm cov qauv tsim tshwj xeeb.
Q: Cov kev lag luam twg nyiam SA387 Qib 22 Chav Kawm 2 dhau Chav Kawm 1?
A: Kev lag luam xws li roj thiab roj, petrochemicals, thiab lub zog tsim hluav taws xob nyiam SA387 Qib 22 Chav Kawm 2 dhau Chav Kawm 1. Vim tias Chav Kawm 2 cov ntaub ntawv muaj cua sov- kho kom muaj zog tensile ntau dua (txog 690 MPa piv rau Chav Kawm 1's 585 MPa), lawv zoo dua los daws cov thermal corrosive } ib puag ncig muaj zog, siab thiab {9} reactors. boilers.
