Zuag qhia tag nrho
PH 265 GHyog azoo-grained, carbon-manganese hlautshwj xeeb tsim los siv ntawmsiab kub, feem ntau nyob rau hauv kev tsim kho ntawm boilers thiab siab hlab ntsha. Cov kav dej uas tsim los ntawm cov khoom siv no yog siv los nqa chav dej, dej kub, lossis lwm yam siab - cov kua dej kub hauv siab.
Kev tawg ntawm lub npe
Lub npe ua raws li tus qauv EuropeanTS EN 10216(Seamless steel raj rau lub hom phiaj siab).
P: Stands for "Pressure" purpose.
H: Qhia tias cov hlau tsim nyog rau kev siv ntawmKub kub.
265: Qhov no yogqhia qhov tsawg kawg nkaus tawm los zog(ReH) ntawm chav tsev kub, hauv MPa. Yog li, qhov tsawg kawg nkaus tawm lub zog yog 265 MPa.
G: Denotes ib tug yuav tsum tau rau ib tug teevyam tsawg kawg nkaus lub zog(tawv tawv).
H: Ib lub cim ntxiv uas yuav tsum tau muaj, uas nyob rau hauv cov ntsiab lus no lees paub tias nws tsim nyog rau kev ua haujlwm siab - kub.
Cov khoom tseem ceeb
PH265GH yog txhais los ntawm nws cov tshuaj muaj pes tsawg leeg thiab txhua yam khoom, raws li cov qauv zoo liTS EN 10216-2.
1. Chemical Composition (Kwv yees % los ntawm qhov hnyav)
| Element | Cov ntsiab lus (%) | Lub luag haujlwm & Kev cuam tshuam |
|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.20 | Muab lub zog. Tsawg carbon txhim kho weldability. |
| Manganese (Mn) | 0.80 - 1.40 | Ua kom muaj zog thiab toughness. |
| Silicon (Si) | 0.10 - 0.40 | Deoxidizing tus neeg sawv cev, txhim kho lub zog. |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.025 | impurity; khaws cia kom tsawg los tiv thaiv embrittlement. |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.015 | impurity; khaws cia tsawg heev los txhim kho kev ua haujlwm kub thiab toughness. |
| Aluminium (Al) | Ntau dua lossis sib npaug rau 0.020 | grain refiner; tsim cov qauv zoo -grained kom zoo dua toughness. |
Key Takeaway:Cov muaj pes tsawg leeg yog C-Mn steel nrog kev tswj cov impurities thiab cov qauv zoo, ua rau nws muaj zog, tawv, thiab yooj yim weldable.
2. Mechanical Properties (ntawm chav tsev kub)
| Khoom | Tus nqi | Nco tseg |
|---|---|---|
| Yield zog (Rp0.2 Min) | 265 MPa rau | Tus thawj tsim ntawm lub npe. |
| Tensile zog (Rm) | 410 - 530 MPa | Qhov ntau ntawm cov hlau yuav tsum poob rau hauv. |
| Elongation (A) | Ntau dua lossis sib npaug li 24% | Qhia tau zoo ductility. |
| Impact Zog (KV) | Ntau dua lossis sib npaug rau 27 J (ntawm -20℃/ -4℃F) | Paub meej tias zoo toughness ntawm qhov kub thiab txias. |
3. Siab -Tsuas Khoom
Qhov no yog qhov tseem ceeb tshaj plaws ntawm PH265GH. Nws lub zog muaj ntawv pov thawj ntawm qhov kub siab, uas yog qhov tseem ceeb rau kev tsim boiler.
Maximum Tso Cai Kev Pabcuam Kub:Feem ntau mus txog450℃- 500℃(842℃F - 932℃F).
Yam tsawg kawg nkaus Yield Strength ntawm elevated kub:Tus qauv muab qhov tsawg kawg nkaus lub zog muaj nuj nqis ntawm qhov kub thiab txias (piv txwv li, ntawm 300 degree, 350 degree, 400 degree, thiab lwm yam). Cov ntaub ntawv no yog siv los ntawm engineers kom ntseeg tau tias cov yeeb nkab tuaj yeem tiv taus kev ua haujlwm siab yam tsis muaj deforming.
Manufacturing Standards thiab yeeb nkab hom
Cov kav dej ua los ntawm PH265GH yog tsim raws li:
TS EN 10216-2:Seamless steel raj rau lub hom phiaj siab - Kev xa khoom xa tuaj rau cov khoom tsis yog- alloy thiab alloy steel tubes nrog qhov ntsuas kub siab.
Cov kav dej no tuaj yeem yog:
Seamless (S):Hom ntau tshaj plaws rau siab - cov ntawv thov siab, vim lawv tsis muaj qhov ntev ntawm cov vuam seam, uas yog qhov muaj peev xwm tsis muaj zog.
Welded:Tsawg dua rau qhov siab tshaj plaws, tab sis ua tau yog tias lawv ua tau raws li tus qauv yuav tsum tau ua.
Cov ntawv thov siv
PH265GH cov kav dej yog siv nyob qhov twg cov pa roj carbon steel kav yuav tsum tswj kev kub siab thiab kub:
Boiler Tubes:Superheater tubes, reheater tubes, dej phab ntsa raj, thiab economizer tubes nyob rau hauv lub hwj chim chaw nres tsheb thiab industrial boilers.
Pressure Vessel Cheebtsam:Plhaub, headers, thiab lwm yam pressurized qhov chaw.
Chav thiab dej kub Piping:Rau kev thauj cov txheej txheem chav hauv kev lag luam xws li tshuaj lom neeg, petrochemical, thiab kev tsim khoom.
Thaum tshav kub kub Exchanger Tubes:Nyob rau hauv cov tshuab uas qhov nruab nrab yog kub thiab siab.
Qib sib npaug
Nws yog qhov tseem ceeb kom paub tias PH265GH piv rau lwm cov qauv thoob ntiaj teb:
| Txuj | Qib sib npaug | Nco tseg |
|---|---|---|
| ISO 9328-2 | P265GH | Qhov tseem ceeb tib yam. |
| TIAB SA 17175 | 45.8/III | Ib qho zoo sib xws thiab keeb kwm German sib npaug. |
| ASTM A192 / A106 / ASTM A192 / ASTM A192 / TS | Qib B | ASTM A106 Gr. B yog qhov sib npaug tshaj plaws Asmeskas.Txawm hais tias zoo sib xws, cov chemistry thiab lav siab - qhov kub thiab txias tsis zoo ib yam, yog li kev hloov ncaj qha yuav tsum tau tshuaj xyuas engineering. |
Qhov zoo ntawm PH265GH
Zoo Siab -Tsub Muaj Zog:Txhim khu kev ua tau zoo nyob rau hauv kev ua haujlwm tsis tu ncua ntawm kev kub kub.
Weldability zoo heev:Vim nws cov ntsiab lus tswj tau cov pa roj carbon monoxide, nws tuaj yeem yooj yim welded nrog ntau txoj kev yam tsis muaj ua ntej - lossis tom qab - kho cua sov hauv feem ntau thicknesses.
Zoo Toughness:Resistant rau brittle puas.
Tus nqi -zoo:Cov khoom siv ua haujlwm uas muab qhov sib npaug ntawm kev ua tau zoo thiab tus nqi rau ntau daim ntawv thov boiler.
Hauv kev xaus,PH265GH Carbon Steel Boiler Yeeb Nkabyog ib qho zoo -cov khoom zoo, cov qauv tsim tshwj xeeb uas tsim los rau kev nyab xeeb thiab kev ntseeg siab hauv kev xav tau siab - kub thiab siab - ib puag ncig siab.
