Taw qhia rau P460N Carbon Steel Boiler Steel Pipe
Txheej txheem cej luam
P460N yog ib qho zoo li qub - cov pa roj carbon monoxide - manganese steel tshwj xeeb tsim los rau siab - siab boiler thiab siab hlab ntsha daim ntawv thov. Cov khoom no raug cais raws li European cov qauv EN 10216-3 (seamless raj) thiab EN 10217-3 (welded raj) rau lub hom phiaj siab. Lub npe "P460N" qhia:
P: Siab hom phiaj steel
460: Yam tsawg kawg nkaus yield zog ntawm 460 MPa ntawm chav tsev kub
N: Kev kho cua sov zoo li qub
Cov yam ntxwv tseem ceeb thiab kev siv
P460N muaj cov khoom siv kho tshuab zoo dua piv rau qis dua -qib steels zoo li P355NH, ua rau nws tsim nyog rau kev thov ntau dua:
Siab zog - rau - Qhov hnyav piv: Lub zog muaj zog ntau dua tso cai rau cov phab ntsa nyias nyias thaum tswj kev muaj peev xwm tswj tau
Weldability zoo heev: Zoo- cov qauv nplej thiab cov tshuaj chemistry tswj xyuas kom zoo weldability nrog cov txheej txheem kom raug
Txhim kho Toughness: Kev kho li qub muab kev txhim kho kev cuam tshuam ntawm qhov kub thiab txias
Kub Resistance: Tswj cov cuab yeej cuab tam ntawm qhov kub siab txog li 500 degree
Cov ntawv thov tseem ceeb:
Siab - siab boiler Cheebtsam (superheaters, headers, chav kab)
Cov hlab ntsha muaj zog rau kev tsim hluav taws xob
Thaum tshav kub kub exchangers nyob rau hauv xav tau kev pab cuam tej yam kev mob
Petrochemical processing khoom
Cheeb tsam cua sov tshuab nrog kev tsim qauv siab dua
Technical Specifications
Table 1: Tus qauv tshuaj muaj pes tsawg leeg (EN 10216-3 / EN 10217-3)
| Element | Cov ntsiab lus ntau yam (%) | Tus nqi zoo (%) | Lub Hom Phiaj/Cov nyhuv |
|---|---|---|---|
| Cov pa roj carbon (C) | Tsawg dua los yog sib npaug li 0.20 | 0.16-0.20 | Lub zog, hardenability |
| Silicon (Si) | Tsawg dua lossis sib npaug li 0.60 | 0.15-0.35 | Deoxidizer, lub zog |
| Manganese (Mn) | 1.00-1.70 | 1.40-1.60 | Lub zog, hardenability |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.025 | Tsawg dua los yog sib npaug rau 0.020 | Tswj impurity |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.015 | Tsawg dua lossis sib npaug li 0.010 | Tswj impurity |
| Niobium (Nb) | Tsawg dua los yog sib npaug li 0.05 | 0.02-0.04 | grain refinement |
| Vanadium (V) | Tsawg dua lossis sib npaug li 0.12 | 0.05-0.10 | Ua kom dej nag ntxiv |
| Aluminium (Al) | Ntau dua lossis sib npaug rau 0.020 | 0.020-0.050 | grain refinement |
| Nitrogen (N) | Tsawg dua los yog sib npaug rau 0.020 | Tsawg dua lossis sib npaug li 0.015 | Tswj ntxiv |
| Chromium (Cr) | Tsawg dua los yog sib npaug li 0.30 | Tsawg dua lossis sib npaug li 0.25 | Cov khoom seem |
| Molybdenum (hli) | Tsawg dua lossis sib npaug li 0.10 | Tsawg dua lossis sib npaug li 0.08 | Cov khoom seem |
| Nickel (Ni) | Tsawg dua los yog sib npaug li 0.50 | Tsawg dua lossis sib npaug li 0.40 | Cov khoom seem |
| Copper (Cu) | Tsawg dua los yog sib npaug li 0.30 | Tsawg dua lossis sib npaug li 0.25 | Cov khoom seem |
Table 2: Chav Kub Kub Mechanical Properties
| Khoom | Txuj Kev Cai | Hom kab mob | Kev kuaj mob |
|---|---|---|---|
| Yield zog (Rp0.2) | Ntau dua lossis sib npaug li 460 MPa | 460-550 MPa | Raws li normalized |
| Tensile zog (Rm) | 550-720 MPa | 580-680 MPa | Raws li normalized |
| Elongation (A) | Ntau dua lossis sib npaug li 17% | 18-22% | Ntawm 5.65√S₀ qauv |
| Kev txo qis ntawm cheeb tsam (Z) | - | 45-60% | Transverse xeem |
| Impact Zog (KV) | Ntau dua lossis sib npaug rau 40 J avg * | 60-120 J | -20℃lossis -50℃* |
| Hardness | - | 180-220 HB | Brinell hardness |
* Kev ntsuas kub nyob ntawm cov khoom siv (piv txwv li, P460N H1: -20 degree, P460N H2: -50 degree)
Table 3: Cov Cuab Yeej Cuab Yeej Ua Haujlwm Siab (tsawg kawg yield Strength Rp0.2)
| Kub (degree) | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 |
|---|---|---|---|---|---|---|---|---|---|
| Tsawg Rp 0.2 (MPa) | 435 | 415 | 390 | 370 | 345 | 325 | 300 | 275 | 250 |
Table 4: Sib piv nrog lwm cov Boiler Steels
| Khoom | P460N | P355 NH | 16 hmo 3 | A335 P11 |
|---|---|---|---|---|
| Min Yield zog (MPa) | 460 | 355 | 280 | 205 |
| Tensile Range (MPa) | 550-720 | 470-630 | 450-600 | 415-585 |
| Max Service Temp (degree) | ~500 | ~400 | ~525 | ~550 |
| Hom Phab Ntsa Thickness | Nruab nrab | Thicker | Nyias | Nruab nrab |
| Nqi Factor | Siab | Nruab nrab | Nruab nrab-High | Siab |
Kev tsim khoom thiab kev ua haujlwm
Txheej txheem ntau lawm:
Steelmaking: Hluav taws xob arc lossis cov pa hluav taws xob yooj yim nrog kev ua kom zoo dua qub
Nruam Casting: Rau slab los yog paj ntau lawm
Kub Rolling / Piercing: Ua rau hauv seamless yeeb nkab lossis phaj rau welded yeeb nkab
Normalizing Kev kho cua sov: Cua sov rau 880-950℃tom qab cua txias
Kev kuaj thiab tshuaj xyuas: Tag Nrho NDE (UT, RT), mechanical testing, hydrostatic testing
Welding Considerations:
Preheating: Feem ntau 100-150℃nyob ntawm thickness
Cov txheej txheem pom zoo: SMAW, GTAW, SAW, GMAW
Filler metals: Sib piv lossis cov khoom siv tsis zoo (xws li EN ISO 16834-A)
PWHT: Feem ntau tsis xav tau rau cov khoom siv li qub tab sis yuav xav tau rau cov ntu tuab
Tsim thiab xaiv qhov zoo
Cov txiaj ntsig ntawm P460N:
Txo qhov hnyav: Lub zog siab dua tso cai kwv yees li 20-25% qhov hnyav txuag piv rau P355NH rau qhov sib npaug ntawm qhov ntsuas siab
Nqi Efficiency: Cov khoom ntim qis dua tuaj yeem ua rau ntau dua ib -tuj nqi hauv ntau daim ntawv thov
Qhov chaw optimization: Txo cov phab ntsa tuab ua kom cov qauv tsim ntau dua
Txhim khu kev ruaj ntseg Margins: Lub zog muaj zog ntau dua muab kev nyab xeeb ntxiv
Kev sib haum xeeb: Raws li PED (2014/68/EU) cov cai rau cov cuab yeej siv siab
Kev txwv:
Tus nqi siab dua ib kilogram piv rau cov qib qis
Cov txheej txheem vuam nruj dua yuav tsum tau ua
Kev txwv tsis pub muaj nyob hauv qee lub lag luam piv rau cov qib txheem
Tej zaum yuav xav tau ntau cov txheej txheem fabrication
Quality Assurance thiab Standards Compliance
P460N kav dej tau muab nrog cov ntawv pov thawj:
EN 10204 3.1/3.2 cov ntaub ntawv pov thawj
Traceability rau cua sov / ntau ntau
Ua kom tiav cov ntaub ntawv tshuaj ntsuam xyuas thiab tshuab
Tsis yog -cov ntaub ntawv kuaj xyuas kev puas tsuaj (UT, RT raws li muaj)
Daim ntawv pov thawj Hydrostatic Test
CE kos rau kev ua raws li PED
Common Specifications:
TS EN 10216-3: Seamless zoo grain alloy steel hlab
TS EN 10217-3: Welded zoo grain alloy steel hlab
AD 2000-Merkblatt W10: German siab hlab ntsha code
Cov neeg siv khoom - cov lus qhia tshwj xeeb rau kev tsim hluav taws xob
P460N sawv cev rau cov khoom siv qib siab tshaj plaws rau cov khoom siv niaj hnub no siab -kev ua haujlwm boiler tshuab qhov kev ua kom zoo zog, kev ntseeg tau, thiab qhov hnyav hnyav yog qhov tseem ceeb ntawm kev tsim qauv.
