SA210 GrC yog tus qauv tshwj xeeb rau carbon manganese steel qib cov ntaub ntawv siv hauv boilers thiab superheaters. Nws belongs rau ib hom nruab nrab- kub, siab - lub zog carbon steel thiab feem ntau yog siv rau hauv kev tsim cov siab-cov kabmob xws li cov raj superheater thiab cov raj reheater hauv cov fais fab nroj tsuag boilers.
Specification
Hom:Kub-tiav steel yeeb nkab, txias- tiav steel yeeb nkab
Specification:OD: 12.7-127 hli. WT: 0.9-12.7 hli. L.: Ib qho Random, Ob Chav Random & Txiav Ntev
Txheem:ASTM A210, ASME SA210
Qib: A1, C
Xaus:Plain End, Beveled End, Threaded
Ntim:Lub thawv ntoo lossis pob khoom tiv thaiv nrog ntawv yas, thiab tsim nyog tiv thaiv rau hiav txwv - tsim nyog xa lossis raws li thov.
Cov Khoom Siv Tshuaj Rau ASTM A210 Seamless Tubes
| Qib | C (Max) | Mn | Si (Min) | P (Max) | S (Max) |
| C | 0.35 | 0.29~1.06 | 0.10 | 0.035 | 0.035 |
Tensile Requirements rau ASTM A210 Seamless Tubes
| Qib | Tensile zog (Mpa) | Yield zog (Mpa) | Elongation (%) |
| C | Ntau dua lossis sib npaug rau 485 | Ntau dua lossis sib npaug li 275 | Ntau tshaj los yog sib npaug rau 30 |
Cov txheej txheem ntau lawm
1. Steelmaking: Hlau yog smelted siv hluav taws xob arc rauv los yog converter. Kev tswj xyuas meej ntawm smelting kub thiab lub sij hawm ua kom cov tshuaj muaj pes tsawg leeg ntawm cov hlau molten raws li tus qauv yuav tsum tau ua. Thaum lub sij hawm refining, deoxidation thiab alloying ua hauj lwm yog ua los kho cov ntsiab lus ntawm cov ntsiab lus xws li carbon, manganese, thiab silicon.
2. Nruam Casting: Tsim nyog molten steel yog poured rau hauv ib tug crystallizer thiab maj mam solidified rau hauv ib tug steel billet siv ib tug txias system. Tus nqi cua txias yuav tsum tau tswj xyuas thaum lub sij hawm nruam nruam kom tsis txhob muaj qhov tsis xws luag.
3. Piercing: Lub steel billet, rhuab mus rau qhov tsim nyog qhov kub thiab txias, yog muab tso rau hauv ib lub zeb tho thiab tsim rau hauv lub hollow raj billet los ntawm skew dov los yog siab tho. Kev tswj xyuas kom nruj ntawm cov cua kub kub thiab tho qhov ceev yog yuav tsum tau nyob rau hauv cov kauj ruam no.
4. Rolling: Lub raj billet undergoes ntau dov deformations, maj mam txo cov phab ntsa thickness thiab ncua ntev. Tuav qhov tsim nyog qhov kawg dov kub thaum lub sij hawm kub dov kom ntseeg tau cov khoom siv.
5. Kev kho cua sov: Cov yeeb nkab steel dov tau txais kev kho kom zoo, uas suav nrog cov cua sov rau qhov kub thiab txias rau ib lub sijhawm, ua raws li cov cua txias, txhawm rau txhim kho tag nrho cov khoom siv.
6. Kev ua tiav: Cov kav hlau steel tau ua tiav tom qab ua tiav xws li kev ncaj, txiav tawm qhov kawg, thiab ua qauv rau kev tshuaj xyuas kom ntseeg tau tias cov khoom lag luam qhov tseeb thiab qhov chaw zoo raws li qhov yuav tsum tau ua.