SA 387 Gr. 22 Cl . 2yog ib qho chromium-molybdenum alloy steel phaj, teev los ntawm ASTM / ASME cov qauv, tsim los rau siab - kev pabcuam kub hauv boilers, siab hlab ntsha, thiab cov cua kub exchangers, muab superior zog, weldability, thiab tsis kam mus nkag thiab oxidation, nrog rau chav kawm 2 qhia siab tensile zog dua Class 1. Nws muaj pes tsawg leeg muaj xws li chromden% 2 thiab %2. normalization thiab tempering rau kev pom kev ua tau zoo hauv kev xav tau kev lag luam ib puag ncig xws li petrochemical thiab hluav taws xob tsim.
Cov ntawv thov tseem ceeb thiab kev lag luam tso siab rau SA 387 Qib 22 Chav Kawm 2
Kev lag luam siab Vessel
Cov ntawv thov tseem ceeb: Cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, cov hlab ntsha siab thiab siab -kub nruab nrab cia cov hlab ntsha.
Lub hom phiaj Sectors: Tshuaj, petrochemical thiab roj refining kev lag luam.
Adaptability Vim li cas: Withstands 593℃kev pabcuam tas mus li, tiv thaiv kev deformation nyob rau hauv ntev -lub sij hawm kub thiab siab, kom ntseeg tau siab - bearing khoom ruaj ntseg.
Boiler thiab Heat Exchanger Kev Lag Luam
Daim ntawv thov tseem ceeb: Boiler nruas, lub taub hau lub taub hau, cov ntaub ntawv kub hloov pauv thiab lwm yam khoom siv.
Lub Hom Phiaj Sectors: Thermal fais fab, muaj boiler thiab txheej txheem cua sov industries.
Adaptability Yog vim li cas: Sib npaug thermal conductivity, oxidation thiab thermal qaug zog tiv thaiv rau kev ruaj ntseg kev pab cuam nyob rau hauv cyclic siab -kub ib puag ncig.
Kev lag luam tsim hluav taws xob
Cov ntawv thov tseem ceeb: Chav headers, turbine casings, chav kav dej thiab siab -kub auxiliaries.
Lub hom phiaj Sectors: Pa thermal fais fab, ua ke lub voj voog fais fab nroj tsuag thiab cov chaw ua haujlwm siab heev.
Adaptability Yog vim li cas: Resistant siab -sab thermal stress, tswj cov khoom ruaj khov rau ntev - lub sij hawm txhim khu kev qha.
Kev lag luam roj thiab roj
Cov ntawv thov tseem ceeb: Reformer furnaces, hydroprocessing reactors, siab -kub pipelines thiab offshore/onshore txheej txheem khoom.
Lub hom phiaj Sectors: Onshore roj refining, offshore roj & roj kev loj hlob thiab natural gas processing.
Adaptability Yog vim li cas: Resistant hydrogen nres thiab siab -kub corrosion, adapting rau hnyav offshore thiab hydrogenation tej yam kev mob.
Kev Lag Luam Kev Lag Luam
Cov ntawv thov tseem ceeb: Catalytic reactors, txheej txheem nkoj thiab tshuaj lom neeg nruab nrab thauj pipelines.
Lub hom phiaj Sectors: Fine chemical, organic chemical thiab industrial synthesis industries.
Adaptability Yog vim li cas: Resistant organic / inorganic media corrosion, tswj kev ncaj ncees nyob rau hauv siab -kub tshuaj tiv thaiv.
Sib piv SA 387 Qib 22 Chav Kawm 2 nrog Lwm Cov Hlau Alloy
SA 387 Qib 22 Chav Kawm 2 yog 2.25Cr-1Mo siab lub nkoj hlau paub txog nws qhov zoo heev - kub nkag lub zog thiab zoo weldability. Piv nrog rau SA 387 Qib 11 Chav Kawm 2 (1.25Cr-0.5Mo), nws muab ntau dua creep thiab tawg lub zog vim nws cov ntsiab lus chromium thiab molybdenum ntau dua, ua rau nws tsim nyog rau lub sijhawm ntev -kev pabcuam ntawm qhov kub siab, txawm hais tias nws yuav tsum tau nruj dua preheat thiab tom qab kev kho cua sov{{31}. Thaum piv rau SA 387 Qib 5 (0.5Mo), Qib 22 Chav Kawm 2 muaj kev ua haujlwm siab tshaj -kub, thaum piv rau Qib 9 (9Cr-1Mo), nws muaj cov ntaub ntawv zoo dua thiab muaj kev pheej hmoo tsawg dua embrittlement. Cov txheeb ze rau carbon steels xws li SA 516 Qib 70, nws nthuav tawm ntau zog creep thiab oxidation tsis kam ntawm qhov kub thiab txias, thiab piv rau cov hlau tsis muaj steel, nws muaj tus nqi qis dua thiab siab dua thermal conductivity tab sis tsawg corrosion kuj. Zuag qhia tag nrho, SA 387 Qib 22 Chav Kawm 2 yog ib qho sib npaug Cr-Mo alloy hlau uas ua tau raws li qhov xav tau ntawm ntau qhov kub thiab txias, kev siv lub nkoj siab siab.
Kev ntsuam xyuas daim hlau ntawm SA 387 Qib 22 Chav Kawm 2
Ntau yam kev ntsuam xyuas yog qhov tseem ceeb tshaj qhov tseem ceeb los ntawm cov neeg tsim khoom txhawm rau kom paub tseeb tias cov phaj muab khoom tsis muaj qhov yuam kev. Kev ntsuam xyuas yog ua los ntawm cov kws tshaj lij los ntawm kev siv cov cuab yeej tshiab thiab niaj hnub no. Cov kev ntsuam xyuas ua tiav yog cov khoom siv txheeb xyuas qhov zoo, ntsuas qhov nyuaj, ntsuas kev sib xyaw ua ke, kev sib tw / flaring, macro / micro test, tshuaj ntsuam xyuas, pitting resistance test thiab mechanical test.
Tshuaj muaj pes tsawg leeg ntawm SA387 GR.22 CL.2 Phaj
| C | Mn | P | S | Si | Cr | Mo |
| 0.04 - 0.15 | 0.25 - 0.66 | 0.035 | 0.035 | 0.5 max | 1.88 - 2.62 | 0.85 - 1.15 |
Mechanical Properties ntawm SA 387 GR.22 CL.2 Phaj
| Tensile zog | Yield zog | Elongationin 50mm (%) | Txo thaj tsam hauv% |
| 75-100 ksi, 515-690 MPa | 45 Ksi, 310 MPa | 18 | 45 |
Vim li cas thiaj xaiv peb:
Koj tuaj yeem tau txais cov khoom zoo meej raws li qhov koj xav tau ntawm tus nqi tsawg kawg nkaus.
Peb kuj muab Reworks, FOB, CFR, CIF, thiab qhov rooj rau qhov rooj tus nqi xa khoom. Peb xav kom koj ua deal rau shipping uas yuav zoo heev.
Cov ntaub ntawv uas peb muab yog muaj tseeb tiag, txoj cai los ntawm raw cov ntaub ntawv xeem daim ntawv pov thawj mus rau qhov kawg dimensional nqe lus.
Peb lav muab cov lus teb tsis pub dhau 24 teev (feem ntau hauv tib lub sijhawm)
Koj tuaj yeem tau txais cov khoom hloov pauv, zeb xa khoom nrog txo lub sijhawm tsim khoom.
Peb tau mob siab rau peb cov neeg siv khoom. Yog tias nws yuav tsis tuaj yeem ua tau raws li koj cov kev xav tau tom qab kuaj xyuas tag nrho cov kev xaiv, peb yuav tsis ntxias koj los ntawm kev cog lus tsis tseeb uas yuav tsim kev sib raug zoo rau cov neeg siv khoom.
Tiv tauj peb ntawm beam@gneesteelgroup.com rau tus nqi, kev txhawb nqa, lossis kev daws teeb meem. Peb yeej ib txwm npaj los txhawb koj qhov project.
Lub zog creep ntawm SA 387 Gr . 22 Cl . 2 yog dab tsi?
Nws muaj kev nkag siab zoo ntawm qhov kub siab, feem ntau siv rau hauv daim ntawv thov txog li 593℃(1100℃F), ua rau nws haum rau siab -kub siab cov hlab ntsha.
Dab tsi yog cov kev siv ntawm SA 387 Gr. 22 Cl. 2?
Nws yog dav siv nyob rau hauv cov khoom siv refinery, petrochemical reactors, boilers, tshav kub exchangers, thiab lwm yam siab hlab ntsha ua hauj lwm nyob rau hauv high kub thiab pressures.
Puas yog SA 387 Gr. 22 Cl. 2 haum rau vuam?
Yog lawm, nws yooj yim weldable siv cov txheej txheem vuam xws li SMAW, GMAW, FCAW, thiab SAW. Preheating thiab post-weld heat treatment (PWHT) raug pom zoo kom tiv thaiv kev tawg.
Preheating qhov kub thiab txias tau pom zoo rau vuam SA 387 Gr. 22 Cl. 2?
Preheat kub feem ntau yog li ntawm 200-300 degree, nyob ntawm lub phaj thickness thiab txheej txheem vuam. Cov phaj tuab yuav xav tau ntau dua preheat kom txo cov hydrogen-induced cracking.
PWHT dab tsi yuav tsum tau tom qab vuam SA 387 Gr. 22 Cl. 2?
Ib qho kev tshaj tawm -weld kev kho cua sov ntawm ib puag ncig 620-680℃rau lub sijhawm txaus yog feem ntau siv los txo cov kev ntxhov siab uas seem thiab txhim kho toughness thiab creep zog.
SA 387 Qib 22 Chav Kawm 2 yog dab tsi?
SA 387 Qib 22 Chav Kawm 2 yog chromium-molybdenum alloy steel phaj teev nyob rau hauv ASTM A387/A387M, feem ntau yog siv rau lub nkoj siab thiab boiler daim ntaub ntawv uas yuav tsum tau zoo creep zog thiab kub kuj.
Dab tsi yog cov tshuaj muaj pes tsawg leeg ntawm SA 387 Gr. 22 Cl. 2?
Nws feem ntau muaj nyob ib ncig ntawm 2.00% chromium, 1.00% molybdenum, nrog rau kev tswj hwm ntawm carbon, manganese, silicon, phosphorus, thiab sulfur. Qhov muaj pes tsawg leeg yuav tsum ua raws li cov kev txwv hauv ASTM A387 / A387M.
Dab tsi yog cov yam ntxwv ntawm SA 387 Gr. 22 Cl . 2?
Cov khoom muaj xws li lub zog tensile yam tsawg kawg nkaus ntawm 415-585 MPa, qhov tsawg kawg nkaus yield zog ntawm 205 MPa, thiab elongation ntawm 22% yam tsawg kawg nkaus. Chav Kawm 2 yuav tsum muaj kev ntsuam xyuas ntxiv ntawm qhov ntsuas kub qis dua piv rau Chav Kawm 1.
Dab tsi yog qhov txawv ntawm SA 387 Gr. 22 Chav Kawm 1 thiab Chav Kawm 2?
Lub ntsiab sib txawv yog nyob rau hauv tej yam toughness yuav tsum tau. Chav Kawm 2 yuav tsum tau Charpy V- ntsuas qhov cuam tshuam ntawm qhov ntsuas kub qis (feem ntau yog 0℃F lossis -18 degree), kom ntseeg tau tias muaj zog dua rau kev thov ntau dua.
Qhov siab tshaj plaws thickness rau SA 387 Gr. 22 Cl. 2 daim hlau yog dab tsi?
Tus qauv tso cai rau ntau qhov tuab, tab sis qhov siab tshaj plaws yog nyob ib puag ncig 150 mm lossis ntau dua, nyob ntawm qhov chaw tsim khoom muaj peev xwm thiab kev kho cua sov.
SA 387 Gr. 22 Cl. 2 txawv ntawm SA 387 Gr. 11 Cl. 2 li cas?
SA 387 Gr. 22 Cl. 2 yog 2.25Cr-1Mo steel, hos SA 387 Gr. 11 Cl. 2 yog 1.25Cr-0.5Mo steel. Cov ntsiab lus chromium thiab molybdenum siab dua hauv Gr. 22 muab qhov zoo dua siab dua -kub lub zog, nkag siab, thiab oxidation kuj, tshwj xeeb tshaj yog nyob rau hauv kev pab ntev tshaj 500℃. Qhov no ua rau Gr. 22 zoo dua rau refinery heaters, transformers, thiab high-temperature reactors, whereas Gr. 11 feem ntau yog siv nyob rau hauv tsawg heev kub tej yam kev mob. Tsis tas li ntawd, Gr. 22 feem ntau yuav tsum tau preheat ntau dua thiab PWHT thaum vuam vim nws hardenability ntau dua.