Txheej txheem cej luam ntawm Steel Qib 1.5637
1.5637yog European (feem ntau German DIN / EN) cov ntaub ntawv tus lej rau aMolybdenum{0}} hlau alloysiv nyob rau hauv siab -kub siv. Nws tsis yog ntshiab carbon steel tab sis alow- alloy tshav kub-resistant steel. Nws qhov tseem ceeb yog siv hauv kev tsim cov boilers, cov hlab ntsha siab, thiab cov kav dej uas ua haujlwm ntawm qhov kub thiab txias.
Qhov tseem ceeb alloying ntsiab yogMolybdenum (hli), uas muab lub zog muaj zog ntawm qhov kub siab dua piv rau cov pa roj carbon steels.
Cov ntsiab lus tseem ceeb thiab qib sib npaug
Cov hlau no tau them raws li ntau tus qauv tseem ceeb rau cov cuab yeej siv siab.
Table 1: Cov Qauv Khoom Siv thiab Cov Qauv Tseem Ceeb
| Standard System | Lub npe | Main Application Standard |
|---|---|---|
| DIN / EN | Khoom Naj Npawb 1.5637 | TS EN 10216-2 Cov kav dej tsis sib haum |
| DIN / EN | Qib 16Mo3 | TS EN 10028-2 Cov khoom lag luam tiaj tus rau lub hom phiaj siab) |
| ASTM (USA) | A335 Qib P1 / A209 Qib T1 | Feem ntau siv rau qhov zoo sib xws high -temp piping. |
| ISO | 16 hmo 5 | ISO 9328-2 |
Tshuaj muaj pes tsawg leeg
Cov muaj pes tsawg leeg yog tswj nruj kom ntseeg tau tias weldability thiab siab -kub kev ua haujlwm.
Table 2: Cov tshuaj lom neeg muaj pes tsawg leeg (EN 10216-2 / EN 10028-2)
| Lub ntsiab | Cov ntsiab lus (%) | Lub hom phiaj |
|---|---|---|
| Cov pa roj carbon (C) | 0.12 - 0.20 | Muab lub hauv paus zog. |
| Manganese (Mn) | 0.40 - 0.90 | Ua kom muaj zog thiab hardenability. |
| Silicon (Si) | Tsawg dua los yog sib npaug li 0.35 | Deoxidizer, txhim kho lub zog. |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.025 | Impurity, khaws cia tsawg heev. |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.010 | Impurity, khaws cia tsawg heev rau toughness. |
| Molybdenum (hli) | 0.25 - 0.35 | Lub ntsiab tseem ceeb.Txhim kho qhov siab - qhov kub thiab txias tsis kam. |
Mechanical Properties
Cov cuab yeej yog lav nyob rau hauv chav tsev kub. Thaum kub kub, "creep zog" (ua haujlwm kom qeeb deformation nyob rau hauv kev ntxhov siab) dhau los ua qhov tsim qauv tseem ceeb.
Table 3: Chav tsev zoo-Temperature Mechanical Properties
| Khoom | Tus nqi | Xwm Txheej / Ceeb Toom |
|---|---|---|
| Yield zog (Rp0.2) | Min.240 - 280 MPa | Nws txawv me ntsis los ntawm cov khoom tsim thiab qauv. |
| Tensile zog (Rm) | 450 - 600 MPa | |
| Elongation (A) | Min.22 - 25% | Qhia tau zoo ductility. |
| Impact Zog (KV) | Feem ntau >40 Jntawm 20 degree | Xyuas kom toughness. |
Cov yam ntxwv thiab kev siv
Cov yam ntxwv tseem ceeb:
Zoo Siab -Tsub Muaj Zog:Ua tau zoo hauv kev pabcuam txuas ntxiv mus txog kwv yees li500-525 ° F (930-975 ° F).
Zoo Weldability:tuaj yeem nkag tau yooj yim welded siv ntau txoj kev (SMAW, GTAW, SAW) yam tsis muaj ua ntej- cua sov hauv feem ntau thicknesses, tab sis tom qab-weld heat treatment (PWHT) feem ntau pom zoo rau cov ntu tuab lossis cov kev pabcuam tseem ceeb.
Zoo Formability thiab Machinability:Nws tuaj yeem khoov thiab fabricated nrog cov txheej txheem txheej txheem.
Superior rau Carbon Steel:Muaj kev nkag siab zoo dua li qib zoo li P235GH (1.0345) lossis A106 Gr. B, ua rau nws haum rau siab dua - siab boiler seem.
Kev siv tseem ceeb hauv Boiler thiab Fais Fab Cog:
Superheater thiab Reheater Tubes(hauv qis- qhov kub thiab txias)
Siab -Tsuas Kub Cov Yeeb Nkab thiab Headers
Boiler Drums thiab Presses Vessels(rau cov ntu tshwj xeeb)
Thaum tshav kub kub Exchanger Tubesnyob rau hauv cov txheej txheem kev lag luam
Kev txiav txim siab tseem ceeb rau cov kav dej
Thaum xaj lossis siv1.5637 / 16Mo3 kav, xyuas kom meej cov specifications npog:
Kev tsim khoom:Seamless (S) feem ntau yog rau siab - kev pabcuam siab. Tus qauv yogTS EN 10216-2: Seamless steel raj rau lub hom phiaj siab.
Delivery condition:Feem ntau muab nyob rau hauv lubnormalized (+ N)Kev kho cua sov.
Kev soj ntsuam daim ntawv pov thawj:Cov kav dej rau cov cuab yeej siv siab feem ntau xav tau aHom 3.1 lossis 3.2 daim ntawv pov thawjRaws li EN 10204, uas muab cov ntsiab lus ntxaws ntxaws ntawm cov txiaj ntsig tshuaj lom neeg thiab tshuab.
Kev sib txuas rau ASTM:Rau cov haujlwm thoob ntiaj teb,ASTM A335 P1yog qhov sib npaug ze tshaj rau seamless ferritic alloy - steel yeeb nkab. Nco ntsoov sab laj tus ntoo khaub lig ncaj nraim - rooj hais lus lossis tus kws tsim khoom siv rau kev hloov pauv tseem ceeb.
Hauv cov ntsiab lus,1.5637 (16Mo3) boiler steel yeeb nkabyog ib qho kev txhim khu kev qha, tus qauv qis- alloy steel tshwj xeeb tsim los rau kev nyab xeeb thiab kev ua haujlwm ruaj khov nyob rau hauv siab - kub thiab siab - qhov chaw siab pom nyob rau hauv lub tshuab hluav taws xob thiab cov tshuab boiler.
