Tuam Tshoj ASTM A53 Gr.B Kub Rolled Carbon Seamless Steel Yeeb Nkab
Lus piav qhia luv luv:
No Alloy Steel Pipe nrog 12cr1MOV Cov Khoom Siv yog cov yeeb nkab steel seamless uas tuaj yeem siv rau hauv roj av, tshuaj, hluav taws xob thiab kev siv boiler.Nws muaj cov yam ntxwv ntawm kev ua haujlwm txias, kub tsis kam thiab corrosion kuj.12Cr1MoV yog ib hom yeeb nkab alloy.Lub hom phiaj tseem ceeb yog ua cov txheej txheem steel hauv lub boiler.
Ua raws li lub hauv paus ntsiab lus ntawm "zoo, kev pabcuam, kev ua haujlwm thiab kev loj hlob", peb tau txais kev ntseeg siab thiab kev qhuas los ntawm cov neeg siv khoom hauv tsev thiab thoob ntiaj teb rau Tuam Tshoj ASTM A53 Gr.B Kub Rolled Carbon Seamless Steel Yeeb Nkab, Rau cov lus nug ntxiv lossis koj yuav tsum muaj lus nug txog peb cov khoom, xyuas kom koj tsis txhob yig hu rau peb.
Ua raws li lub hauv paus ntsiab lus ntawm "kev ua tau zoo, kev pabcuam, kev ua haujlwm thiab kev loj hlob", peb tau txais kev ntseeg siab thiab kev qhuas los ntawm cov neeg siv khoom hauv tsev thiab thoob ntiaj teb rauTuam Tshoj steel yeeb nkab thiab carbon yeeb nkab, Peb tab tom nthuav dav peb cov kev lag luam thoob ntiaj teb raws li cov khoom zoo, kev pabcuam zoo heev, tus nqi tsim nyog thiab xa khoom raws sijhawm.Thov hu rau peb txhua lub sijhawm yog xav paub ntxiv.
Qhov kev pabcuam kub yog 580 ℃, thiab cov phaj hlau yuav tsum muaj qhov kub thiab txias siab zog.Cov hlau phaj yog xa hauv lub xeev normalized thiab tempered.12Cr1MoVG alloy yeeb nkab yog ua raws li cov pa roj carbon zoo, thiab ib lossis ob peb lub ntsiab lus hlau raug tsim nyog ntxiv los txhim kho cov khoom siv kho tshuab, toughness thiab hardenability ntawm cov hlau.Cov khoom ua los ntawm cov hlau no feem ntau xav tau kev kho cua sov (normalizing lossis quenching thiab tempering);Cov khoom thiab cov khoom ua los ntawm lawv feem ntau yuav tsum tau quenching thiab tempering los yog deg tshuaj kho (carburizing, nitriding, thiab lwm yam), nto quenching los yog high-frequency quenching ua ntej siv.Yog li, raws li cov tshuaj sib txawv (feem ntau yog cov ntsiab lus carbon), cov txheej txheem kev kho cua sov thiab kev siv, cov hlau no tuaj yeem muab faib ua carburized, quenched thiab tempered thiab nitrided steels.
Ua ntej, nws tuaj yeem ua 100% rov ua dua tshiab, txuag hluav taws xob thiab kev tiv thaiv ib puag ncig.
Thib ob, nws muaj plasticity siab heev thiab tuaj yeem siv rau kev tsim khoom thiab kev ua haujlwm thib ob.
Thib peb, nws muaj qhov zoo thermal conductivity thiab siab kub creep peev xwm.
Plaub, nws muaj oxidation zoo thiab corrosion kuj.
Thib tsib, nws muaj kev ua haujlwm txias thiab kub ua haujlwm zoo.
12Cr1MoVG yog ib hom chromium molybdenum alloy steel yeeb nkab, nyob rau hauv uas lub ntsiab tshuaj Cheebtsam yog carbon 0.08-0.15, silicon 0.17-0.37, manganese 0.40-0.70, phosphorus tsis ntau tshaj 0.035, sulfur tsis ntau tshaj 0.20.0.0.0.0.0.0. molybdenum 0.25-0.35, alum 0.15-0.30, thiab lwm yam.
Ua ntej, nws yog tsuas yog siv los tsim high-pressure alloy raj rau cua sov qhov chaw ntawm cov dej raj boilers nrog siab siab thiab saum toj no.
Qhov thib ob, nws yog dav siv nyob rau hauv superheaters, headers thiab lub ntsiab chav ducts ntawm domestic high-pressure, ultra-siab siab thiab subcritical fais fab chaw nres tsheb boilers.
Thib peb, txoj kab uas hla loj yog siv los ua headers thiab Main Steam Conduits nrog chav ntsuas hauv qab 565 ℃.
Ua ntej, kub dov (extrusion seamless steel yeeb nkab) txheej txheem ntws:
Round tube billet → cua sov → tho → peb yob cross dov, nruam dov los yog extrusion → yeeb nkab stripping → sizing (los yog txo) → txias → billet → straightening → hydrostatic test (los yog flaw detection) → marking → warehousing.
Thib ob, kos duab txias (dov) seamless steel yeeb nkab txheej txheem ntws:
Round tube billet → cua sov → tho → taub hau → annealing → pickling → roj txheej (tooj liab plating) → multi pass txias drawing (txias dov) → billet raj → tshav kub kho → straightening → hydrostatic test (los yog flaw detection) → marking → warehousing.
| Cov ntsiab lus | Cov ntaub ntawv |
| Cov pa roj carbon | 0.08-0.15 dr hab |
| Silicon | 0.17-0.37 Nws |
| Manganese | 0.40-0.70 Nws |
| Phosphorus (max) | ≤ 0.030 |
| Sulfur (max) | ≤ 0.030 |
| Chromium | 0.90-1.20 Nws |
| Molybdenum | 0.25-0.35 Nws |
| Cuprum (max) | ≤ 0.20 |
| Nickel (max) | ≤ 0.30 |
| Vanadium (max) | 0.15-0.30 Nws |
| Yield zog (Mpa) | 470-640 : kuv |
| Tensile zog (Mpa) | 255 |
| Elongation (%) | 21 |
| WT (S) | Tolerance ntawm WT | |
| <3.5 | + 15% (+ 0.48 hli) | |
| -10% (+ 0.32 hli) | ||
| 3.5-20 | + 15%, -10% | |
| > 20 | D <219 | ± 10% |
| D≥219 | + 12.5%, -10% | |
Ua raws li lub hauv paus ntsiab lus ntawm "zoo, kev pabcuam, kev ua haujlwm thiab kev loj hlob", peb tau txais kev ntseeg siab thiab kev qhuas los ntawm cov neeg siv khoom hauv tsev thiab thoob ntiaj teb rau Tuam Tshoj STM A53 Gr.B Kub Rolled Carbon Seamless Steel Yeeb Nkab, Rau cov lus nug ntxiv lossis koj yuav tsum muaj lus nug txog peb cov khoom, xyuas kom koj tsis txhob yig hu rau peb.
Tuam Tshoj steel yeeb nkab thiab carbon yeeb nkab, Peb tab tom nthuav dav peb cov kev lag luam thoob ntiaj teb raws li cov khoom zoo, kev pabcuam zoo heev, tus nqi tsim nyog thiab xa khoom raws sijhawm.Thov hu rau peb txhua lub sijhawm yog xav paub ntxiv.
