1.5662 Carbon Steel Boiler Steel Pipe - Cov Txheej Txheem Txheej Txheem
1. Taw qhia
1.5662 yog German (DIN / EN) cov ntaub ntawv tus lej tsim amolybdenum- alloyed tshav kub-cov pa roj carbon steel. Nws feem ntau yog siv los tsim cov raj seamless thiab cov kav dej rau boilers, superheaters, heat exchangers, thiab high -kub siab hlab ntsha. Nws cov yam ntxwv tseem ceeb yog txhim kho creep tsis kam thiab lub zog ntawm qhov kub thiab txias piv rau cov pa roj carbon steel.
2. Khoom Specifications & Standard Equivalents
Qib no yog tswj hwm los ntawm European cov qauv rau seamless siab kav.
| Txuj | Lub npe | Daim ntawv khoom | Daim ntawv thov tseem ceeb |
|---|---|---|---|
| TS EN 10216-2 | P235GH | Seamless Tubes | Siab & kub lub hom phiaj |
| TIAB SA 17175 | 15 hmo 3 | Seamless Tubes | Boilers, tshav kub exchangers, piping |
| Khoom Naj Npawb (Werkstoff Nr.) | 1.5662 | - | Universal identifier nyob rau hauv German system |
| Common UNS Approx. | K31509 | - | Zoo ib yam li ASTM A204 Gr. B / A335 P1 |
3. Chemical Composition (Tswj, %)
Qhov sib ntxiv ntawm molybdenum (kwv yees . 0.25-0.35%) muab cov tshuaj muaj zog ntxiv.
| Element | Cov pa roj carbon (C) | Silicon (Si) | Manganese (Mn) | Phosphorus (P) max | Sulfur (S) max | Molybdenum (hli) |
|---|---|---|---|---|---|---|
| Cov ntsiab lus | 0.10 - 0.20 | 0.10 - 0.35 | 0.40 - 0.80 | 0.025 | 0.020 | 0.25 - 0.35 |
4. Mechanical Properties (ntawm chav tsev kub)
Cov cuab yeej tau teev tseg rau qhov normalized lossis normalized & tempered mob.
| Khoom | Yield zog (Rp0.2) min | Tensile zog (Rm) | Elongation (A) min | Impact Zog (KV) min* |
|---|---|---|---|---|
| Tus nqi | Ntau dua lossis sib npaug li 255 MPa | 450 - 600 MPa | Ntau dua lossis sib npaug li 24% | Ntau dua lossis sib npaug li 40 J(ntawm +20 degree) |
| Note: Impact testing is typically required for wall thicknesses >16mm los yog raws li tau teev tseg los ntawm kev txiav txim. |
5. Cov yam ntxwv tseem ceeb & kev siv
High -Tsub Ua Haujlwm: Tsim los rau lub sijhawm ntev - kev pabcuam ntawm qhov kub thiab txias feem ntau mus txog~ 500℃(930℃F). Muaj kev tiv thaiv zoo rau kev nkag mus (qeeb deformation nyob rau hauv kev ntxhov siab thiab kub).
Weldability: Zoo weldability siv ntau txoj kev (SMAW, GTAW, SAW). Preheating thiab post-weld heat treatment (PWHT) tej zaum yuav xav tau rau cov ntu tuab los txo cov kev ntxhov siab.
Cov ntawv thov tseem ceeb:
Seamless boiler raj thiab superheater raj
Siab - kub thiab siab - cov kav dej siab hauv cov chaw tsim hluav taws xob
Kub exchanger tubing
Cheebtsam rau petrochemical thiab txheej txheem kev lag luam
6. Cov Lus Qhia Tseem Ceeb rau Kev Muag Khoom
Kev xeem & ntawv pov thawj: Cov kav dej yog muab nrog a3.1 lossis 3.2 cov ntaub ntawv pov thawjRaws li EN 10204, txheeb xyuas kev ua raws li cov tshuaj thiab cov khoom siv kho tshuab.
Tsis yog -Kev Ntsuas Kev Puas Tsuaj (NDT): Yuav tsum tau ua raws li cov qauv (piv txwv li, kuaj ultrasonic lossis hydrostatic) kom ntseeg tau tias muaj kev ntseeg siab.
Cov khoom siv: Feem ntau muab rau hauvnormalized (+ N)los yognormalized thiab tempered (+ NT)mob kom ua tiav cov txheej txheem microstructure thiab cov khoom.
Tsis yog rau qis-Tsuas siv: Qib no tsis yog npaj rau qis- kub lossis kev pabcuam cryogenic vim nws cov ferritic-pearlitic microstructure.
Hauv cov ntsiab lus,1.5662 (15Mo3 / P235GH)yog ib tug txhim khu kev qha, standardized, thiab dav siv molybdenum steel rau qhov tseem ceeb heev - kub siab cov cuab yeej, muab qhov zoo tshaj plaws tshuav nyiaj li cas ntawm lub zog, manufacturability, thiab tus nqi rau nws npaj kub ntau yam.
