15Ch Acloy Hlau Seamless Tube / Yeeb -} Cov Khoom Taw Qhia
23CRMOGPuas yog chromium - molybdenum (cr {}}}} resist edant alloy steel qib teev hauv Suav cov qauvGB 5310Rau Seamless Tubes siv nyob rau hauv high - h siab boilers thiab lwm cov ntawv thov siab.
Nws cov yam ntxwv thoob plaws tau zoo heevntev - lub zog (creep lub zog)thiab zoooxidation tsis kamThaum nce qhov kub siab (feem ntau txog li 550-580 degree). Nws yog cov khoom siv dav rau cov tub rog superheater, thiab header kav dej hauv chaw nres tsheb fais fab thiab petrochemical nroj tsuag.
Cov Nta Tseem Ceeb & Kev Thov
Cov ntawv thov MAIN:Siab - h siab siab boiler superHeater, kev ceev, kev lag luam, thiab cov yeeb nkab tseem ceeb. Kuj tseem siv rau hauv kev hloov cua sov thiab kav dej rau lub petrochemical kev lag luam.
Cov Ntsiab Lus Tseem Ceeb:
Zoo heev cov khoom siv kho tshuab.
Zoo heev rau oxidation thiab scaling ntawm qhov kub.
Siab creep lub zog thiab kev sib xyaw ua kom muaj zog nyob rau hauv ntev ntev - dua li ntawm lub sijhawm ua kom muaj qhov kub siab thiab siab.
Zoo weldability thiab formability.
Tshuaj lom neeg tshuaj lom neeg (GB 5310 cov qauv yuav tsum tau)
Cov lus hauv qab no qhia tau cov tshuaj muaj pes tsawg leeg uas xav tau (feem pua los ntawm qhov hnyav).
| Lub ntsiab | Cov ntsiab lus (%) |
|---|---|
| Carbon (c) | 0.12 ~ 0.18 |
| Silicon (si) | 0.17 ~ 0.37 |
| Manganese (mn) | 0.40 ~ 0.70 |
| Chromium (cr) | 0.80 ~ 1.10 |
| Molybdenum (mo) | 0.45 ~ 0.60 |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.025 |
| Sulphur (s) | Tsawg dua los yog sib npaug rau 0.025 |
| Npib tsib caug (ni) | Tsawg dua los yog sib npaug rau 0.30 |
| Tooj Liab (Cu) | Tsawg dua los yog sib npaug rau 0.20 |
Cov Cuab Yeej Siv Cov Neeg Khoyam (GB 5310 cov qauv yuav tsum tau tom qab kev kho cua sov & tempering sov)
Cov lus hauv qab no qhia txog cov khoom tseem ceeb.
| Ntiag tug | Qhov toob kas | Sau ntawv |
|---|---|---|
| Lub zog tensile (RM) | Ntau dua los yog sib npaug rau 440 MPa | - |
| Yield zog (RP0.2) | Ntau dua los yog sib npaug rau 295 mpa | - |
| Elongation (a) | Ntau dua los yog sib npaug rau 22% | - |
| Kev Cuam Tshuam Lub Zog (KV2) | Ntau dua los yog sib npaug rau 55 j | Ntawm chav tsev kub |
| Kev nyuaj | Tsawg dua los yog sib npaug rau 160 HBW | Lossis lwm yam sib npaug |
Cov lus qhia sab nrauv thiab kev ua kom muaj kev puas tsuaj
15crrmog kav yog tsim los ua txoj hlab uas tsis ntse. Cov kev qhia tshwj xeeb muaj xws li:
Sab nraud inch (OD):Feem ntau ntawm 16 hli rau 630 hli lossis loj dua.
Phab ntsa tuab (wt):Feem ntau ntawm 2 hli rau 80 hli.
Ntev:Feem ntau ntawm 6 meters rau 12 meters, lossis random ntev raws li kev pom zoo.
Qhov ntev ntev pab tau ua raws li GB 5310, uas feem ntau zoo ib yam li cov qauv thoob ntiaj teb xws li en 10216 lossis ASTM A213. Kev thev taus yog:
Od zam:Feem ntau ± 1.0% lossis tshwj xeeb tus nqi raws li txoj kab uas hla thiab kev tsim qauv.
Wt kam rau:Feem ntau hauv cov ntau ntawm ± 10% rau -10% / +12.5}}%, nyob ntawm cov tuab tuab.
Sib piv cov qhab nia rau hauv thoob ntiaj teb
15Cro tau ua haujlwm tau sib npaug rau ob peb qib nyob hauv lwm cov qauv thoob ntiaj teb.NCO TSEG: Cov tshuaj lom neeg muaj tshuaj lom zem heev tsis zoo ib yam, thiab hloov chaw yuav tsum tau ua kom zoo ntawm kev soj ntsuam los ntawm tus kws ua choj.
| Lub hom phiaj | Teem nqi | Lub Npe |
|---|---|---|
| ASTM / ASME (USA) | A213 T11 / A335 P11 | Qib T / P11 |
| Din / en (Tebchaws Europe) | 13cro4-5 (en 10216-2) | 1.7335 |
| JIS (Nyiv) | Stba 22 / STPA 22 | - |
Cov ntsiab lus ntawm 15crmog tsis
| Hom | Cov ntsiab lus |
|---|---|
| Suav Txuj Ci | GB 5310 (Seamless Cov Hlau Hlawv Rau Kev Kub Siab Boilers) |
| Teem nqi | 23CRMOG |
| Ntaus | Cr -}} mo pearlitic tshav kub- tiv taus alloy steel |
| Cov ntawv thov MAIN | High - kub & siab-}} siab teev cov piping (boilers, petrochemical) |
| Cov Khoom Siv Tseem Ceeb | Siab Crep Zog, Zoo Oxidation Resistance (txog ~ 580 Qib) |
| Tus me nyuam | Normized + tempered (n + t) |
| Cov qhab nia sib npaug | ASTM A213 T11, thiab 13CRMO4-5 (1.7335) |
Txog cov haujlwm tshwj xeeb, nws yog qhov tseem ceeb rau kev xa mus rau cov chaw tsim yeeb yaj kiab tiav 5310 thiab tsis muaj kev sim ua kom zoo nkauj (NDT) thiab hydrostatic kev sim tshuaj, tau ntsib.
