Incoloy 800 Hyog nickel-hlau-chromium alloy tsim los rau siab - qhov kub thiab txias. Nws lub npe UNS yog N08810, German Werkstoff tus lej yog 1.4958, thiab Suav GB qib sib npaug yog NS112.
Qhov luv luv ntawm vim li cas nws tshwm sim: tus qauv Incoloy 800 ua haujlwm zoo hauv qab li 600 degrees C. Tab sis ib zaug koj mus rau saum toj ntawd, tshwj xeeb tshaj yog nyob rau hauv cov ntawv thov uas cov yeeb nkab nyob rau hauv kev ntxhov siab (siab piping, furnace tubes, reformer outlet kab), tsis tu ncua 800 pib nkag. Cov nplej hla dhau ib leeg, cov yeeb nkab deforms, thiab thaum kawg nws ua tsis tiav.
800H kho qhov no los ntawm kev ntxiv cov pa roj carbon tswj hauv pem teb. Cov spec hais tias 0.05 txog 0.10 feem pua carbon, uas suab zoo li ib tug me me tab sis qhov tseeb yog tag nrho cov ntsiab lus ntawm qib. Cov pa roj carbon monoxide no, ua ke nrog lub siab -kub tshuaj anneal ntawm ib ncig ntawm 1150 ° C, ua rau cov pob zeb ntxhib (ASTM 5 lossis coarser). Cov nplej ntxhib txhais tau tias tsawg dua cov ciam teb rau ib chav tsev ntim, uas txhais tau tias tsawg dua. Qhov tshwm sim: kwv yees li ob npaug ntawm qhov creep- tawg lub neej ntawm tus qauv 800 ntawm 700 degrees C.
Kuj tseem muaj 800HT (UNS N08811), uas ntxiv cov aluminium ntau dua ntxiv rau titanium cov ntsiab lus rau nag lossis daus ntxiv . 800HT tus nqi tej zaum 10 mus rau 15 feem pua ntau tshaj 800H thiab yog qhov tsim nyog thaum koj khiav saum toj 900 ° C. Tab sis feem ntau cov roj thiab roj, petrochemical, thiab cov khoom siv hluav taws xob hauv nruab nrab sab hnub tuaj yog 800H. Kuv yuav hais txog cov txheej txheem xaiv kom ntxaws ntxiv tom qab.
Cov Khoom Muag Khoom
Bar & Rod
Phaj & Ntawv
Coil & Sawb
Tube & Tube
Haum: Flange, Tee, Luj Tshib, Reducer thiab lwm yam.
Forging: Nplhaib, Ncej, Vajvoog, Thaiv thiab lwm yam.
Qhov twg 800H Yeeb Nkab Tau Siv Tau
Feem ntau cov chaw muag khoom lub vev xaib yuav muab rau koj cov npe ntawm cov mos txwv: "kev ua tshuaj lom neeg, cov chaw tsim hluav taws xob, cov khoom siv hluav taws xob sib txawv." Qhov ntawd tsis qhia koj ntau. Ntawm no yog dab tsi cov ntawv thov tiag tiag zoo li hauv av.
Ethylene tawg rauv.Qhov no yog cov neeg siv khoom loj tshaj plaws ntawm 800H yeeb nkab los ntawm ntim. Nyob rau hauv ib lub cracker, hydrocarbon feedstock tau rhuab mus rau 800 mus rau 850 degrees C nyob rau hauv radiant coils. Cov yeeb nkab phab ntsa pom tias qhov kub thiab txias ntxiv rau sab hauv siab ntxiv rau qhov chaw carburizing. Standard stainless qib carburize thiab embrittle nyob rau hauv ob peb xyoos.
800H tiv thaiv cov pa roj carbon monoxide vim tias nws cov ntsiab lus nickel siab (30 mus rau 35 feem pua), thiab cov qauv lis ntxhib tuav cov kev ntxhov siab los ntawm kev ua haujlwm ruaj khov. Saudi Arabia ib leeg muaj ntau lub ntiaj teb- nplai crackers: SABIC cov chaw hauv Jubail thiab Yanbu, SATORP refinery, Petro Rabigh. Txhua lub voj voog hloov pauv, lawv tab tom yuav hloov cov raj cua sov.
Chav methane hloov pauv.Hauv hydrogen ntau lawm thiab ammonia nroj tsuag, hloov kho qhov hluav taws xob pigtails thiab hloov kab khiav ntawm 750 mus rau 900 degrees C. Cov no yog cov me me - txoj kab uas hla (feem ntau yog 1 mus rau 4 ntiv tes) tab sis qhov kev ntxhov siab yog siab thiab cov hydrogen ib nrab siab accelerates embrittlement nyob rau hauv cov ntaub ntawv tsis ncaj ncees lawm . 800H yog tus qauv spec rau cov khoom siv sab hnub tuaj.
Thaum tshav kub kub exchangers nyob rau hauv siab - kub kev pab cuam.Thaum koj muaj lub raj - sab kub siab tshaj 600 ° C thiab plhaub - sab raug cov pa roj los yog cov txheej txheem roj, 800H cov hlab ua tau zoo tshaj 304H thiab 316H stainless ntawm ob qho tib si oxidation tsis kam thiab creep lub neej. Feem ntau nyob rau hauv refinery raug rho tawm cua sov thiab pov tseg cov cua sov rov qab units.
Nuclear applications. Incoloy 800H (thiab nws cov kwv tij 800)muaj keeb kwm ntev hauv lub tshuab hluav taws xob nuclear tubing, tshwj xeeb hauv CANDU thiab qee qhov PWR tsim. Lub alloy tiv thaiv chloride kev nyuaj siab corrosion cracking nyob rau hauv lub thib ob voj dej chemistry, uas yog dab tsi tua ntau ntawm 304 stainless tubing rov qab rau xyoo 1970s. Qhov no yog ntau dua ntawm European thiab North American kev ua lag luam, tab sis tsim nyog paub yog tias koj tab tom twv ntawm cov khoom siv nuclear - qib.
Fais fab nroj tsuag superheater thiab reheater tubing.Coal- raug rho tawm haujlwm thiab roj- tua cov nroj tsuag hauv GCC khiav lub qhov hluav taws xob superheater qhov hluav taws xob uas tuaj yeem thawb 800H rau hauv nws qhov muaj txiaj ntsig zoo. Middle East fais fab sector yog ib qho me me tab sis cov neeg siv khoom sib xws.
800 vs 800H vs 800HT: Thaum twg los xaiv qhov twg
Qhov no yog lo lus nug uas kuv tau nug feem ntau los ntawm cov neeg yuav khoom uas tau muab daim ntawv spec thiab hais tias "tau txais daim ntawv tso cai." Ntawm no yog lub hauv paus kev txiav txim siab uas yooj yim dua li kev sib piv cov nkhaus nkhaus.
| Qib | UNS | Cov pa roj carbon | Loj Loj | Kev txwv tsis tu ncua | Tus nqi txheeb ze | Thaum siv |
|---|---|---|---|---|---|---|
| 800 | N08800 | Tsawg dua los yog sib npaug rau 0.10 (tsis muaj yam tsawg kawg nkaus) | Tsis tau teev tseg | ~ 600 degree | Lub hauv paus | Kub exchanger tubing hauv qab 600 degree; kev pabcuam nitric acid; tsis yog- cov khoom siv hluav taws xob |
| 800H | N08810 | 0.05–0.10 | ASTM 5 los yog coarser | ~ 900 degree | +8 mus rau 15% tshaj 800 | Reformer qhov hluav taws xob kab; cracking cub tawg radiant coils; txhua lub kav dej siab tshaj 600 degree |
| 800 HT | N08811 | 0.06–0.10; Al + Ti Ntau dua lossis sib npaug li 0.85% | ASTM 5 los yog coarser | ~ 980 degree | +15 rau 25% tshaj 800 | Ethylene rauv radiant raj; daim ntawv thov saum toj no 900℃qhov twg txhua teev ntawm creep lub neej suav |
Tshuaj muaj pes tsawg leeg (ASTM B407 / ASME SB407)
| Element | 800H (N08810) Xav tau |
|---|---|
| Nickel (Ni) | 30.0 – 35.0% |
| Chromium (Cr) | 19.0 – 23.0% |
| Hlau (Fe) | Ntau dua lossis sib npaug li 39.5% (sib npaug) |
| Cov pa roj carbon (C) | 0.05 – 0.10% |
| Aluminium (Al) | 0.15 – 0.60% |
| Titanium (Ti) | 0.15 – 0.60% |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1.50% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 1.00% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.015% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.030% |
| Copper (Cu) | Tsawg dua lossis sib npaug li 0.75% |
Mechanical Properties
| Khoom | Tus nqi |
|---|---|
| Tensile zog (min) | 520 MPa (75,000 psi) |
| Yield zog, 0.2% offset (min) | 205 MPa (30,000 psi) |
| Elongation (min) | 30% |
| Qhov ntom | 7.94 g / cm³ |
| Melting Range | 1350 - 1400 degree |
Cov qauv thiab ntawv pov thawj uas tseem ceeb rau Middle East Projects
Yog tias koj muab rau Aramco, ANNOC, SABIC, QP, KNPC, lossis ib lub tuam txhab roj av GCC, cov khoom siv tshwj xeeb tsuas yog ib nrab ntawm kev sib ntaus sib tua. Cov ntaub ntawv yog lwm ib nrab. Ntawm no yog qhov tseem ceeb.
Standards Stack
Rauseamless 800H yeeb nkab, tus qauv tseem ceeb yog ASTM B407 (los yog ASME SB407 rau kev siv lub nkoj siab). Rau welded yeeb nkab, nws yog ASTM B514. Feem ntau cov haujlwm hauv Middle East qhia txog B407 seamless.
Cov yeeb nkab qhov ntev ua raws li ASME B36.10M (rau welded thiab seamless wrought steel yeeb nkab) lossis ASME B36.19M (stainless steel yeeb nkab). Yog tias koj qhov kev txiav txim yog nyob rau hauv metric, paub meej tias lub zeb puas muab OD rau B36.19M los yog qhov tseeb metric OD.
Material Test Certificate (MTC)
Aramco tus qauv yuav cov nqe lus yuav luag ib txwm xav tau EN 10204 Hom 3.1 daim ntawv pov thawj tshuaj xyuas yam tsawg kawg nkaus. Qhov no txhais tau tias cov chaw tsim khoom tau lees paub tias cov khoom ua tau raws li qhov kev txiav txim specification, thiab daim ntawv pov thawj tau kos npe los ntawm tus neeg sawv cev zoo ywj pheej ntawm lub tuam tsev tsim khoom. Rau cov kev pabcuam tseem ceeb (kev pabcuam tuag, siab-siab zog, hydrogen), qhov tshwj xeeb yuav xav tau Hom 3.2, uas ntxiv rau thib peb- kev tshuaj xyuas tog los ntawm tus neeg soj ntsuam tau tso cai (feem ntau SGS, TUV, Bureau Veritas, lossis ib tus neeg soj ntsuam Aramco tau xaiv).
MTC yuav tsum qhia:
- Thaum tshav kub kub tooj thiab traceability rau tus thawj yaj
- Tag nrho cov tshuaj muaj pes tsawg leeg (tsis yog "raws li ASTM B407")
- Mechanical test results (tensile, yield, elongation) rau cov cua sov tshwj xeeb
- Hydrostatic test los yog eddy tam sim no kuaj tau yog tias tau teev tseg
- Thaum tshav kub kub kho mob thiab kub
- Kev txiav txim siab loj ntawm cov nplej (qhov no tseem ceeb rau 800H: yog tias cov nplej loj tsis tau tshaj tawm, koj tsis tuaj yeem paub tseeb tias nws yog 800H es tsis yog 800 hnav nrog daim ntawv pov thawj sib txawv)
Cov lus nug nquag
Q: Qhov txawv ntawm Incoloy 800H thiab Incoloy 825 yog dab tsi?
800H (N08810) yog tsim los rau siab -qhov kub thiab txias tsis kam. Nws muaj li ntawm 30 mus rau 35 feem pua nickel, 19 mus rau 23 feem pua chromium, thiab qhov sib npaug yog hlau . 825 (N08825) ntxiv molybdenum thiab tooj liab rau kev tiv thaiv kom tsis txhob muaj cov kua qaub thiab chloride pitting. Nws yog siv rau hauv kev ua tshuaj lom neeg thiab kev siv dej hiav txwv, tsis yog nyob rau hauv qhov cub lossis kev pabcuam hloov kho. Yog tias koj daim ntawv thov suav nrog sulfuric acid lossis dej hiav txwv, koj xav tau 825. Yog tias nws muaj qhov kub siab tshaj 600 degrees C hauv qab siab, koj xav tau 800H.
Q: 800H puas tuaj yeem txuas rau carbon steel?
Yog lawm, tab sis nws yuav tsum muaj cov txheej txheem vuam tsim nyog. Cov hlau muab tub lim raug yog Inconel 182 (rau SMAW) lossis ERNiCr-3 (rau GTAW). Kev kho cua sov tom qab vuam tsis yog ib txwm xav tau rau 800H tshwj tsis yog tias qhov chaw pabcuam ua rau muaj kev ntxhov siab corrosion tawg. Qhov kev txhawj xeeb tseem ceeb yog qhov sib txawv thermal nthuav dav: 800H nthuav dav txog 30 feem pua ntau dua li cov pa roj carbon steel ntawm kev ua haujlwm kub. Cov yeeb nkab txhawb nqa thiab kev nthuav dav loops yuav tsum ua raws li qhov no.
Q: Kuv yuav ua li cas thiaj paub tseeb tias cov yeeb nkab yog 800H thiab tsis yog tus qauv 800?
Txheeb xyuas MTC rau cov ntsiab lus carbon (yuav tsum yog 0.05 mus rau 0.10 feem pua) thiab grain loj (ASTM 5 lossis coarser). Yog tias tsis tau tshaj tawm, cov khoom raug xav tias yog. Rau siab -tus nqi lossis qhov tseem ceeb, thov tus thib peb-PMI ntxiv rau kev tshuaj xyuas cov pa roj carbon monoxide ntawm tus qauv. OES portable (optical emission spectroscopy) unit tuaj yeem txheeb xyuas cov ntsiab lus carbon uas tsis yog - puas tsuaj. PMI nrog XRF ib leeg tsis txaus vim XRF tsis ntsuas cov pa roj carbon kev ntseeg siab.
Q: Lub sijhawm ua haujlwm yog dab tsikev cai 800H yeeb nkabqhov loj?
Mill ntau lawm khiav rau qhov tsis yog- qhov ntau thiab tsawg ntawm cov khoom lag luam feem ntau siv 8 mus rau 16 lub lis piam los ntawm kev lees paub kev txiav txim mus rau ex- ua haujlwm npaj txhij. Ntxiv 3 mus rau 5 lub lis piam rau kev thauj khoom hiav txwv mus rau Middle East. Lub sij hawm txhuas txhuas: kwv yees li 12 txog 20 lub lis piam. Cov khoom lag luam loj thauj khoom hauv 1 mus rau 3 lub lis piam los ntawm cov stockists loj. Yog tias koj qhov project ncua sij hawm nruj, them tus nqi ntawm cov stockist es tsis tos rau lub tshuab khiav.
Q: Puas yog 800H yeeb nkab yuav tsum muaj qhov tshwj xeeb cia lossis tuav?
Tsis tshwj xeeb. Nws tsis xeb, yog li hauv tsev cia khoom zoo tab sis tsis tas yuav tsum tau ua. Qhov tseem ceeb tshaj plaws: khaws cov cim ntsuas kub kom pom tseeb. Yog tias cov cim tau rub tawm thaum thauj lossis khaws cia, koj poob kev taug qab, thiab MTC yuav tsis muaj txiaj ntsig. Peb pom zoo kom steel- stamped markings es tsis yog xim los yog number case rau cov khoom uas yuav zaum nyob rau hauv ib lub vaj sab nraum zoov rau lub hlis.
Q: HS code rau Incoloy 800H yeeb nkab yog dab tsi?
Nickel alloy seamless yeeb nkab feem ntau ntog nyob rau hauv HS code 7304.41 (txias- kos lossis txias- dov) lossis 7304.49 (lwm cov yeeb nkab seamless ntawm stainless lossis hlau alloy). Paub meej nrog koj tus broker kev lis kev cai, raws li kev faib tawm tuaj yeem sib txawv ntawm lub tebchaws thiab seb cov yeeb nkab puas raug cais raws li cov hlau tsis muaj hlau lossis npib tsib xee alloy raws li cov khoom tseem ceeb.
Tau txais Daim Ntawv Tso Cai rau Incoloy 800H Yeeb Nkab
Yog tias koj muab khoom800H cevrau ib qhov project thiab xav tau tus nqi uas suav nrog qhov tseeb specification, kom muaj nuj nqis, chaw nres nkoj xa khoom, thiab ntawv pov thawj, xa koj RFQ rau peb. Peb hais nyob rau hauv ib hnub ua hauj lwm thiab muab ib tug forforma invoice nrog tag nrho cov Incoterms, lub sij hawm xa tuaj, thiab cov ntaub ntawv scope.
