Raws li ib tug ntev - sawv ntsug tus neeg muag khoom tshwj xeeb nyob rau hauv lub siab lub nkoj steel phaj lag luam, GNEE Steel tau pom qhov tsis tu ncua nce kev thov rau siab - cov ntaub ntawv ua tau zoo thoob plaws ntiaj teb petrochemical, roj ua, thiab refining industries. Nyob rau hauv ib puag ncig uas muaj qhov kub thiab txias, siab siab, thiab cov xov xwm corrosive heev- xws li cov kev pabcuam hydrogen thiab cov pa roj cua uas muaj hydrogen sulfide (H2S)-ASME SA387 chromium-molybdenum alloy steel daim hlau tseem yog qhov tseem ceeb, cov khoom siv raws li kev xaiv rau fabricating welded siab hlab ntsha thiab muaj boilers. Raws li kev sib npaug ntawm cov chromium (Cr) thiab molybdenum (Mo), cov ntawv hlau no nthuav tawm tshwj xeeb nce siab -kub tensile lub zog, superior creep- kev ua haujlwm tawg, thiab ua haujlwm zoo rau ob qho tib si oxidation thiab hydrogen nres nyob rau hauv 400℃mus rau 600℃qhov kub thiab txias.
ASME SA387 Gr . 5 Hlau Phaj yog dab tsi?
ASME SA387 Gr. 5 steel phaj yog 5Cr-0.5Mo chromium-molybdenum alloy siab nkoj steel tsim tshwj xeeb rau cov khoom siv petrochemical ua haujlwm nyob rau hauv siab - kub thiab corrosive. Muab piv rau qis dua - qib chromium, nws cov ntsiab lus chromium siab dua muab kev tiv thaiv zoo tshaj rau oxidation thiab kub-kub sulfidation atmospheres, ua rau nws zoo tagnrho rau cov furnaces, reactors, heat exchangers, thiab refinery processing units.
ASME SA387 Gr . 11 Hlau Phaj yog dab tsi?
ASME SA387 Gr. 11 steel phaj yog 1.25Cr-0.5Mo alloy steel, sawv cev rau ib qho ntawm cov chromium siv dav tshaj plaws- qib molybdenum hauv kev lag luam petrochemical thiab lub zog tsim hluav taws xob. Muab qhov sib npaug zoo heev ntawm siab - qhov kub thiab txias, weldability, thiab formability, nws ua tus nqi - kev xaiv zoo rau nruab nrab - rau - cov hlab ntsha kub siab.
ASME SA387 Gr . 22 Hlau Phaj yog dab tsi?
ASME SA387 Gr. 22 steel phaj yog 2.25Cr-1Mo chromium-molybdenum alloy steel tshwj xeeb tsim los rau cov hlab ntsha siab ua haujlwm nyob rau hauv qhov hnyav dua - kub thiab hydrogen kev pabcuam ib puag ncig. Nws cov ntsiab lus chromium thiab molybdenum nce ntxiv txhim kho kev nkag siab tsis kam, oxidation tsis kam, thiab nce siab - qhov kub thiab txias, ua rau nws nyiam cov khoom siv rau hydrotreating thiab hydrogen-refining units.
ASME SA387 Gr.5, 11, 22 Petrochemical Equipment Steel Phaj Specification
| Yam khoom | Specification |
|---|---|
| Khoom npe | ASME SA387 Gr.5, Gr.11 & Gr.22 Petrochemical Equipment Steel Phaj |
| Txuj | ASME SA387 / ASTM A387 Cov Lus Qhia |
| Qib Steel | Gr.5 (5Cr-0.5Mo), Gr.11 (1.25Cr-0.5Mo), Gr.22 (2.25Cr-1Mo) |
| Chav kawm | Chav Kawm 1, Chav Kawm 2 |
| Thickness Ntau | 6-250 hli |
| Dav Ntau | 1,500–4,000 mm |
| Ntev Ntau | 3,000–18,000 mm |
| Kev Tshawb Fawb & Kev Xeem | Tshuaj ntsuam xyuas, Tensile Test, Ultrasonic Test (UT), Dimensional Inspection, Visual Inspection |
| Kev soj ntsuam daim ntawv pov thawj | EN 10204 3.1; EN 10204 3.2 muaj nyob rau thaum thov |
| Thib peb-Kev soj ntsuam tog | SGS, BV, TÜV, Lloyd's Register, DNV thiab lwm yam raws li kev thov |
ASME SA387 Gr.5 vs Gr.11 vs Gr.22: Tshuaj muaj pes tsawg leeg
| Lub ntsiab | Hom kev tsom xam | Qib 5 | Qib 11 | Qib 22 |
|---|---|---|---|---|
| Cov pa roj carbon (C) | Kev Ntsuas Kub | Tsawg dua los yog sib npaug li 0.15 | 0.05–0.17 | 0.05–0.15 |
| Kev tshuaj xyuas khoom | Tsawg dua los yog sib npaug li 0.15 | 0.04–0.17 | 0.04–0.15 | |
| Manganese (Mn) | Kev Ntsuas Kub | 0.30–0.60 | 0.40–0.65 | 0.30–0.60 |
| Kev tshuaj xyuas khoom | 0.25–0.66 | 0.35–0.73 | 0.25–0.66 | |
| Phosphorus (P) | Kev Ntsuas Kub | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 |
| Kev tshuaj xyuas khoom | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 | |
| Sulfur (S) | Kev Ntsuas Kub | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 |
| Kev tshuaj xyuas khoom | Tsawg dua lossis sib npaug li 0.030 | Tsawg dua lossis sib npaug li 0.035 | Tsawg dua lossis sib npaug li 0.035 | |
| Silicon (Si) | Kev Ntsuas Kub | Tsawg dua los yog sib npaug li 0.50 | 0.50–0.80 | Tsawg dua los yog sib npaug li 0.50 |
| Kev tshuaj xyuas khoom | Tsawg dua los yog sib npaug li 0.55 | 0.44–0.86 | Tsawg dua los yog sib npaug li 0.50 | |
| Chromium (Cr) | Kev Ntsuas Kub | 4.00–6.00 | 1.00–1.50 | 2.00–2.50 |
| Kev tshuaj xyuas khoom | 3.90–6.10 | 0.94–1.56 | 1.88–2.62 | |
| Molybdenum (hli) | Kev Ntsuas Kub | 0.45–0.65 | 0.45–0.65 | 0.90–1.10 |
| Kev tshuaj xyuas khoom | 0.40–0.70 | 0.40–0.70 | 0.85–1.15 |
ASME SA387 Gr.5 vs Gr.11 vs Gr.22: Mechanical Property
| Mechanical Property | Qib 5 | Qib 11 | Qib 22 | |||
|---|---|---|---|---|---|---|
|
Chav Kawm 1 |
Chav kawm 2 |
Chav Kawm 1 |
Chav kawm 2 |
Chav Kawm 1 |
Chav kawm 2 |
|
| Tensile zog (ksi) | 60–85 | 75–100 | 60–85 | 70–90 | 60–85 | 75–100 |
| Tensile zog (MPa) | 415–585 | 515–690 | 415–585 | 485–620 | 415–585 | 515–690 |
| Yield zog (ksi) | Ntau tshaj los yog sib npaug rau 30 | Ntau dua lossis sib npaug li 45 | Ntau dua lossis sib npaug li 35 | Ntau dua lossis sib npaug li 45 | Ntau tshaj los yog sib npaug rau 30 | Ntau dua lossis sib npaug li 45 |
| Yield zog (MPa) | Ntau dua lossis sib npaug li 205 | Ntau dua lossis sib npaug rau 310 | Ntau dua lossis sib npaug li 240 | Ntau dua lossis sib npaug rau 310 | Ntau dua lossis sib npaug li 205 | Ntau dua lossis sib npaug rau 310 |
| Elongation hauv 200 mm (%) | 19 | 18 | 19 | 18 | 19 | 18 |
| Elongation hauv 50 mm (%) | 18 | 18 | 22 | 22 | 18 | 18 |
| Txo thaj tsam (%) | Ntau dua lossis sib npaug li 45 | Ntau dua lossis sib npaug li 45 | Ntau dua lossis sib npaug li 45 | Ntau dua lossis sib npaug li 45 | Ntau dua lossis sib npaug li 45 | Ntau dua lossis sib npaug li 45 |
Xav tau kev pab xaiv ntawm Gr.5, Gr.11 thiab Gr.22? Peb pab pawg neeg tsim khoom tuaj yeem pom zoo tus nqi tshaj plaws - qib zoo raws li koj qhov kev tsim kub, siab thiab kev tsim khoom.
Kev sib piv tseem ceeb: ASME SA387 Gr.5 vs Gr.11 vs Gr.22
ASME SA387 Qib 5
Superior oxidation & corrosion kuj
Qhov zoo tshaj plaws rau kev txhoj puab heev corrosive ib puag ncig
Lower Mo txhais tau hais tias muaj zog nkag siab
ASME SA387 Qib 11
Cov ntsiab lus Cr qis tshaj - kev xaiv nyiaj txiag
Qhov siab tshaj plaws elongation (Ntau dua lossis sib npaug li 22%) - ductility zoo heev
Siv dav hauv nruab nrab -kev pabcuam kub
ASME SA387 Qib 22
Qhov zoo tshaj plaws creep kuj & HTHA kuj
Cov khoom siv rau cov kev pabcuam hydrogen reactors
Ntev - kev pabcuam ntev txog ~ 595℃(1100℃F)
Vim li cas ASME SA387 Gr. 5 Muab Superior High -Temperature Corrosion Resistance?
Piv rau ASME SA387 Gr. 11 thiab Gr. 22, SA387 Gr. 5 muaj cov ntsiab lus chromium siab tshaj plaws (5.00% Cr), uas ua rau nws muaj zog tiv taus siab rau siab - kub oxidation thiab sulfidation hauv refining thiab petrochemical ua ib puag ncig. Ntawm qhov kub siab, chromium reacts nrog oxygen los tsim kom muaj qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom chromium oxide Cr.2O3nplai. Qhov txheej txheej passivation retards ntxiv oxidation thiab minimizes scaling.
Nws yog ib qho tseem ceeb uas yuav tsum nco ntsoov tias SA387 Gr. 5 tsis yog los hloov cov hlau tsis muaj steel lossis npib tsib xee alloys hauv cov dej los yog chloride-induced corrosive ib puag ncig. Nws qhov zoo ntawm corrosion kuj yog feem ntau pom tau hais tias nyob rau hauv siab - qhov kub thiab txias, qhov twg cov ntsiab lus chromium txhim kho qhov chaw ruaj khov thiab txuas ntxiv kev ntseeg tau.
Kev kho cua sov: ASME SA387 Gr.5 vs Gr.11 vs Gr.22
ASME SA387 Gr.5
Chav Kawm 1: Annealed (Ntau dua lossis sib npaug ntawm 845℃/ 1550℃F) lossis raws li kev pom zoo
Chav Kawm 2: Normalize + Temper lossis Quench + Temper
Min. Tempering Kub:Ntau dua lossis sib npaug rau 705℃(1300℃F)
ASME SA387 Gr.11
Chav Kawm 1: Annealed (Ntau dua lossis sib npaug ntawm 845℃/ 1550℃F) lossis raws li kev pom zoo
Chav Kawm 2: Normalize + Temper lossis Quench + Temper
Min. Tempering Kub:Ntau dua lossis sib npaug rau 620℃(1150℃F)
ASME SA387 Gr.22
Chav Kawm 1: Annealed (Ntau dua lossis sib npaug ntawm 845℃/ 1550℃F) lossis raws li kev pom zoo
Chav Kawm 2: Normalize + Temper lossis Quench + Temper
Min. Tempering Kub:Ntau dua lossis sib npaug rau 675℃(1250℃F)
ASME SA387 Gr.5, 11, 22 Petrochemical Equipment Steel Phaj Hom Daim Ntawv Thov
ASME SA387 Gr.5
- Siab -kub siab cov hlab ntsha & boilers
- Cov txheej txheem ntawm cov khoom siv hluav taws xob nrog cov xov xwm corrosive aggressive
- Roj & roj ua yuav tsum tau oxidation zoo dua
ASME SA387 Gr.11
- Roj & roj kev lag luam siab hlab ntsha
- Cov khoom siv roj qaub (H₂S) cov khoom siv
- Boiler nruas thiab chav generators
- Thaum tshav kub kub exchangers nyob rau hauv nruab nrab - kub kev pab cuam
ASME SA387 Gr.22
- Hydrocracking reactors (tus qauv xaiv)
- Hydrodesulfurization (HDS) cov hlab ntsha
- High -siab sib cais & cov cua kub exchangers
- Ammonia synthesis & methanol reactor plhaub
- Coal gasification & hloov pauv khoom siv
GNEE Steel - Koj Trusted SA387 Steel Phaj Tus khub
Nrog ntau tshaj 18 xyoo ntawm kev paub hauv kev lag luam steel, GNEE Steel (Tianjin) Co., Ltd. Peb pabcuam EPC cov neeg cog lus, cov khoom siv hluav taws xob siab, thiab cov khoom siv hluav taws xob thoob ntiaj teb.
Xyoo Ntawm Kev Paub
export lub teb chaws
Cov koom tes thoob ntiaj teb
pab neeg tshaj lij
Peb Cov Peev Xwm Txheej Txheem thiab Kev Pabcuam
Professional Metallurgical & Technical Consulting:Peb pab neeg ua haujlwm ntawm cov hlau alloy steel pab cov neeg siv khoom xaiv cov khoom siv, kev kuaj xyuas kev kho cua sov, thiab thib peb -cov ntaub ntawv txheeb xyuas. Peb kuj muab cov kev pom zoo welding tsis rau SA387 Chromium-Molybdenum (Cr-Mo) steel daim hlau.
Cov khoom lag luam nthuav dav & yoog raws MOQ:Gr. 5 / Gr. 11 / Gr. 22 Chav Kawm 2 daim hlau muaj xws li - Tshuag rau kev xa khoom sai. Peb lees txais me me -tonnage trial orders nrog rau cov kev txiav txim loj loj, txhawb cov khoom ruaj khov nyob rau hauv ntev - cov ntawv cog lus ua haujlwm ntev.
Custom Fabrication & Processing Services:Nruab nrog CNC oxy- roj txiav, plasma txiav, 4- yob phaj dabtsi yog khoov, automated beveling, sandblasting, thiab primer txheej machinery. Peb txheej txheem steel phaj raws li tus neeg siv khoom kos duab thiab ua ntej ua cov reactor plhaub ntu kom luv lub sijhawm ua haujlwm ntawm qhov chaw tsim khoom.
Comprehensive Documentation & Certification:Txhua qhov khoom xa tuaj yog nrog rau daim ntawv pov thawj Mill Test Certificate (MTC), cov ntaub ntawv kho cua sov, UT/PMI/mechanical test reports, thiab NACE cov ntawv pov thawj (yog muaj), ua raws li ASME, API, kev lis kev cai thoob ntiaj teb, thiab thib peb-kev soj ntsuam tog (SGS, BV, TÜV) cov qauv.
Ntiaj teb no Logistics & Performance Guarantees:Rov qab los ntawm qhov ntev -kev koom tes nrog cov neeg xa khoom xa tuaj, peb xa raws li FOB, CIF, lossis DDP cov ntsiab lus rau thaj chaw petrochemical loj thoob ntiaj teb. Yog tias thib peb- kev tshuaj xyuas ib tog qhia pom cov khoom siv sib txawv ntawm ASME cov qauv, peb yuav muab kev hloov pauv dawb thiab them tag nrho cov nqi thauj khoom.
FAQ
Q: SA387 qib twg muaj kev tiv thaiv oxidation zoo dua?
A: Hauv ASME SA387 specification, Qib 91 muaj qhov zoo tshaj plaws oxidation thiab corrosion kuj. Oxidation kuj nyob rau hauv chrome-moly steel nplai ncaj qha nrog nws cov ntsiab lus chromium. Qib 91 muaj kwv yees li 9% chromium, ua rau nws tiv taus ntau dua rau siab -kub oxidation thiab scaling dua qis dua - alloy qib xws li Qib 11 (~ 1% Cr), Qib 12 (~ 1% Cr), lossis Qib 22 (~ 2.25% Cr).
Q: Puas tuaj yeem Gr.22 hloov Gr.11?
A: Txawm tias Qib 22 tuaj yeem hloov qib 11 (feem ntau xa mus rau Chrome-Moly alloy steels zoo li ASTM A387 / ASME SA387) nyob ntawm koj daim ntawv thov, tab sis feem ntau, kev hloov ncaj qha tsis pom zoo yam tsis muaj kev pom zoo engineering.
Q: Qhov txawv ntawm SA387 Gr.5 thiab Gr.11 yog dab tsi?
A: ASME SA387 Gr. 5 thiab Gr. 11 yog ob qho tib si chromium-molybdenum (Cr-}Mo) alloy steel daim hlau siv rau boilers thiab cov hlab ntsha siab ntawm qhov kub siab. Lawv lub ntsiab sib txawv yog nyob rau hauv cov tshuaj muaj pes tsawg leeg, kub kuj, thiab mechanical zog.
Q: Dab tsi yog qhov tshwj xeeb yuav tsum tau rau vuam SA387 steel daim hlau?
A: Vuam ASME SA387 steel daim hlau (chromium-molybdenum alloy) yuav tsum muaj kev tswj xyuas nruj heev. Cov kev cai tseem ceeb suav nrog qhov yuav tsum tau ua kom sov siab ua ntej (150℃txog 260 degree), tswj qhov kub thiab txias interpass, thiab ua haujlwm tom qab-Weld Heat Treatment (PWHT) los tiv thaiv hydrogen-induced cracking thiab restore material ductility.
