JIS G3461 STB510 Siab Siab Boiler Tube
JIS G3461yog Japanese Industrial Standard hu ua "Carbon Steel Boiler thiab Kub Exchanger Tubes." Nws npog peb qib zog ntawm seamless thiab hluav taws xob-kuj-welded carbon steel raj npaj rau kev pabcuam hauv boilers, superheaters, heat exchangers, condensers, and similar heat-transfer equipment - particularly in chemical and petroleum plant and in power generation. Peb qib yog STB340 (tensile Ntau dua lossis sib npaug rau 340 MPa), STB410 (tensile Ntau dua lossis sib npaug rau 410 MPa), thiab STB510 (tensile Ntau dua lossis sib npaug rau 510 MPa). STB510 yog qhov muaj zog tshaj plaws ntawm peb thiab siv qhov chaw ua haujlwm siab dua lossis kub hu rau nws.
Cov raj hauv qab JIS G3461 yog tsim los ntawm cov txheej txheem seamless (kub-tiav lossis txias-tiav) lossis los ntawm hluav taws xob tsis kam vuam (ERW). Txhua lub raj STB510, tsis hais txog ntawm txoj kev tsim khoom, yuav tsum tau muab nkag rau hauv cov xwm txheej zoo li qub. Cov hlau tua tau siv los ua cov khoom siv raw kom ntseeg tau tias cov khoom siv kho tshuab zoo ib yam thiab kom tsis txhob muaj qhov porosity- cuam tshuam txog kev ua haujlwm.
GNEE yog cov chaw tsim khoom, chaw muag khoom thiab xa tawm ntawmJIS G3461 STB510 Thaum tshav kub kub Resistant Carbon Steel Pipethiab Tubes ua los ntawm cov khoom zoo raw khoom. GNEE cov khoom yog tsim raws li cov qauv thoob ntiaj teb loj thiab muag hauv ntau lub tebchaws thoob ntiaj teb.
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STB510 Tshuaj muaj pes tsawg leeg
STB510 yog adawb carbon steel- tsis yog alloy. Tus qauv tso siab lossis ntau qhov txwv ntawm tsib lub ntsiab lus (C, Si, Mn, P, S) thiab txhob txwm tsis xav tau chromium, molybdenum, lossis nickel ntxiv. Qhov no yog qhov txawv ntawm STB510 los ntawm cov qib alloy STBA12, STBA22, thiab lwm yam hauv JIS G3462.
| Element | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| SWB 510 | 0.25 max | 0.35 max* | 1.00 – 1.50 | 0.035 max | 0.035 max |
* Si tej zaum yuav raug teev nyob rau hauv thaj tsam 0.10 - 0.35% los ntawm tus neeg yuav khoom. Tsis txhob txwm ntxiv ntawm Cr, Ni, Mo, lossis Cu yog xav tau los ntawm JIS G3461 rau STB510 - cov no feem ntau tshaj tawm raws li cov seem seem lossis cov kab hauv qab xwb.
Rau kev tsom xam cov khoom lag luam (kev tshuaj xyuas ntawm lub raj tiav), JIS G0321 kam rau ua. Cov raj yog niaj hnub raug rau lub ladle thiab cov khoom siv tshuaj ntsuam xyuas kom paub meej tias kev ua raws li cov cua sov- tsom xam cov kev txwv uas qhia saum toj no.
STB510 Mechanical Properties
Cov kev cai tensile ntawm JIS G3461 STB510 raug kuaj ibTIAB SA 2241siv No.11 lossis No.12 xeem daim, sib npaug rau lub raj axis. Qhov tsawg kawg nkaus elongation nyob ntawm ob txoj kab uas hla sab nraud thiab phab ntsa thickness ntawm lub raj.
| Khoom | Cim | Tus nqi | Kev kuaj mob |
|---|---|---|---|
| Tensile zog (min) | Rm | 510 MPa (N/mm²) | Longitudinal, ib JIS Z 2241 |
| Tawm taw tes lossis 0.2% pov thawj kev ntxhov siab (min) | ReHlos yog Rp0.2 | 295 MPa (N/mm²) | Upper yield point nyiam; 0.2% pov thawj kev ntxhov siab siv qhov tsis tau hais |
| Elongation (min) - OD < 10 mm | A | 17% | No.11 test piece |
| Elongation (min) - 10 Tsawg dua lossis sib npaug rau OD < 20 mm | A | 20% | No.11 test piece |
| Elongation (min) - OD Ntau dua lossis sib npaug li 20 hli, WT > 7 txog <8 hli | A | 25% | No.11 los yog No.12 xeem daim, longitudinal |
| Rockwell hardness (max, txhais tau tias ntawm 3) | HRBW | 92 | - |
Rau cov cua sov- cov raj xa hluav taws xob, tus neeg yuav khoom tuaj yeem xaiv tau hais tias lub zog tensile sab saud - lub zog txwv, xam raws li tus nqi qis tshaj qhia saum toj no ntxiv rau 120 MPa. Qhov kev txwv sab saud no muaj txiaj ntsig qhov twg lub raj yuav flanged, nthuav dav, lossis lwm yam txias - ua haujlwm rau hauv cov ntawv raj thiab lub zog ntau dhau tuaj yeem ua rau cov haujlwm no nyuaj.
Elongation los ntawm phab ntsa thickness (OD Ntau dua los yog sib npaug rau 20 hli, No.12 xeem daim)
| Phab ntsa thickness (mm) | Min elongation (%) |
|---|---|
1 | 16 |
|
2 | 18 |
|
| 3 < t Tsawg dua los yog sib npaug rau 4 | 19 |
4 | 20 |
|
5 | 22 |
|
6 | 24 |
|
7 | 25 |
|
Kev kho cua sov thiab kev tsim khoom
JIS G3461 qhia txog cov cua sov- kev kho mob los ntawm kev tsim khoom. RauSWB 510, tus qauv yuav tsum taunormalizingrau txhua txoj kev - kub-tiav seamless, txias-tiav seamless, thiab hluav taws xob-kuj-welded. Ib qho txias - tiav ERW tube uas tau ua kom zoo ua ntej qhov txias txias tuaj yeem muab ntxiv rau. Lwm cov qhab nia nyob rau hauv tib tus qauv yuav muab tau raws li - cov khoom tsim nrog kev xaiv qis - kub annealing lossis normalizing.
Kev tsim khoom thiab ua tiav cov cim
| Cim | Lub ntsiab lus |
|---|---|
| S | Seamless (pipe manufacturing method) |
| E | Hluav taws xob kuj welded (pipe manufacturing method) |
| H | Kub- tiav lawm |
| C | Txias-ua tiav |
| G | Raws li hluav taws xob kuj welded (txiav txoj kev) |
Piv txwv cim:STB510-SHtxhais tau hais tias kub - tiav seamless STB510 raj;STB510-EGtxhais tau tias yog -hluav taws xob-kuj-welded STB510 raj. ERW hlab ib JIS G3461 muaj lub sab hauv thiab sab nraud weld flash tswj kom muaj qhov sib luag, nrog rau qhov siab hauv qhov siab txwv rau 0.25 hli lossis tsawg dua.
Dimension Range
Raws li JIS G3461, STB510 feem ntau yog tsim nyob rau sab nraud txoj kab uas hla15.9-139.8 hli, nrog phab ntsa-thickness tolerances nyob ntawm txoj kev tsim khoom (kub-tiav seamless, txias-tiav seamless, los yog ERW). Kev lag luam muaj peev xwm txuas ntxiv OD txog li 177.8 hli. Tus qauv ntev yog 3 txog 12 meters lossis raws li tus neeg yuav khoom tau teev tseg.
| Parameter | Ntau yam |
|---|---|
| Sab nraud txoj kab uas hla | 15.9 - 139.8 mm (tus qauv); mus txog ~ 177.8 mm |
| Phab ntsa thickness | Ib JIS G3461 cov lus kam rau ua (nws txawv ntawm OD thiab txoj hauv kev) |
| Ntev | 3-12 m, los yog kev txiav txim |
| Xaus tiav | Plain kawg, beveled kawg, los yog threaded rau ib qho kev txiav txim |
Optional Test
Ntxiv nrog rau qhov yuav tsum tau tensile, hardness, flattening, thiab seem checks, JIS G3461 tso cai rau cov nram qab no xaiv cov kev ntsuam xyuas yuav tsum tau teev los ntawm tus neeg yuav khoom:flattening xeem, flaring xeem, rov qab flattening test(rau ERW raj), thiabKev kuaj hydrostatic. NDT xws li eddy-tam sim no lossis kev kuaj ultrasonic yuav raug pom zoo rau kev pabcuam tseem ceeb.
Kev siv ntawm STB510
STB510 yog siv rau cov cua sov- hloov khoom siv thiab siab - kev pab cuam boiler siab uas yuav tsum muaj zog dua STB340 lossis STB410. Cov ntawv thov ib txwm muaj xws li:
Boiler tubes - cov raj dej, cov raj pa luam yeeb, thiab cov raj tsim tawm
Superheater tubes
Cua preheater tubes
Thaum tshav kub kub- cov raj xa hluav taws xob - plhaub-thiab- raj, condenser, thiab kev pabcuam txias
Catalyst raj hauv tshuaj thiab petrochemical ua
Siab - cov txheej txheem siab piping hauv refineries thiab tshuaj nroj tsuag
Fais fab- cog auxiliary tubing hauv fossil- roj thiab ua ke - chaw nres tsheb
Rau siab- kub alloy steel boiler raj (chromium- qib molybdenum xws li STBA12, STBA22, STBA23, STBA24, STBA25),JIS G3462yog tus qauv siv tau - tsis yog JIS G3461. STB510 yuav tsum tsis txhob hloov pauv rau cov qib alloy hauv siab -kev pabcuam kub tshaj nws cov pa roj carbon- muaj peev xwm hlau.
JIS G3461 STB510 Tsawg Carbon Seamless Steel raj ntim thiab xa khoom
Thov ib daim ntawv tsocai los yog daim ntawv qhia kev
Vim li cas thiaj xaiv GNEE
GNEE muab JIS G3461 STB510 raj rau hauv ob qho tib si seamless thiab ERW cov ntaub ntawv, nyob rau hauv lub normalized mob, nrog tag nrho traceability thiab thib peb - tog tshuaj ntsuam xyuas (ISO, PED, BV muaj nyob rau ntawm kev thov). Kev tsim khoom npog cov qauv OD ntau yam 15.9 - 139.8 hli, nrog rau kev lag luam txuas ntxiv mus txog ~ 177.8 hli thiab ntev txog 12 m lossis ib qho kev txiav txim. Mill Test Certificate siv JIS G3461 thiab suav nrog kev ntsuas cua sov, kev tshuaj xyuas cov khoom, tensile, hardness, thiab qhov loj me.
Gnee Certificate
FAQ
1. JIS G3461 STB510 yog dab tsi?
JIS G3461 STB510 yog Japanese Industrial Standard qib ntawm seamless thiab hluav taws xob -kuj-welded (ERW) carbon steel raj siv rau boilers thiab tshav kub exchangers. Qhov kev xaiv qib qhia tau hais tias lub zog tensile yam tsawg kawg nkaus ntawm 510 MPa. Nws yog qib siab tshaj - qib zog hauv JIS G3461 tsev neeg, uas kuj suav nrog STB340 thiab STB410.
2. Qhov txawv ntawm STB510, STB410, thiab STB340 yog dab tsi?
Tag nrho peb yog JIS G3461 carbon steel boiler thiab tshav kub exchanger raj nrog nce siab zog. STB340 muaj tensile Ntau dua lossis sib npaug rau 340 MPa thiab tawm los Ntau dua lossis sib npaug rau 175 MPa; STB410 muaj tensile Ntau dua lossis sib npaug ntawm 410 MPa thiab tawm los Ntau dua lossis sib npaug rau 255 MPa; STB510 muaj tensile Ntau dua lossis sib npaug rau 510 MPa thiab tawm los Ntau dua lossis sib npaug rau 295 MPa. STB510 yog xaiv qhov chaw ua haujlwm siab dua lossis qhov kub thiab txias.
3. Cov tshuaj muaj pes tsawg leeg ntawm JIS G3461 STB510 yog dab tsi?
STB510 yog cov pa roj carbon steel. Ib JIS G3461: Carbon 0.25% max, Silicon 0.35% max (tej zaum yuav tau teev nyob rau hauv 0.10-0.35% ntau los ntawm buyer), Manganese 1.00-1.50%, Phosphorus 0.035% max, Sulfur 0.035% max. Tsis txhob txwm chromium, npib tsib xee, molybdenum, lossis tooj liab ntxiv.
4. Dab tsi yog cov khoom siv kho tshuab ntawm STB510?
Yam tsawg kawg tensile zog 510 MPa thiab qhov tsawg kawg nkaus yield zog 295 MPa. Qhov tsawg kawg nkaus elongation yog li ntawm 17% (OD < 10 mm) txog 25% (OD Ntau dua lossis sib npaug li 20 mm, phab ntsa thickness> 7 mm), ib JIS Z 2241. Qhov siab tshaj plaws Rockwell hardness yog 92 HRBW. Ib qho tensile sab sauv- lub zog txwv sib npaug rau qhov tsawg kawg nkaus tus nqi ntxiv rau 120 MPa tej zaum yuav raug teev los ntawm tus neeg yuav khoom rau cov cua sov{13}} kev pabcuam pauv.
5. Kev kho cua sov dab tsi STB510 xav tau?
Kev ua kom zoo li qub yog xav tau rau STB510 thoob plaws txhua txoj kev tsim khoom - kub-ua tiav seamless, txias- tiav seamless, thiab ERW. Ib qho txias - tiav ERW raj uas tau ua kom zoo ua ntej qhov txias txias tuaj yeem muab nkag rau hauv qhov mob annealed tom qab ua haujlwm txias kawg.
6. Qhov luaj li cas rau STB510 raj?
JIS G3461 STB510 feem ntau yog tsim nyob rau hauv sab nraud txoj kab uas hla 15.9 mus rau 139.8 hli nrog phab ntsa-thickness tolerances ib tus qauv cov ntxhuav rau cov txheej txheem tsim khoom. Kev lag luam muaj peev xwm txuas ntxiv OD txog li 177.8 hli. Qhov ntev yog feem ntau 3 mus rau 12 m.
7. STB510 siv rau dab tsi?
STB510 yog siv rau boiler tubes, superheater tubes, cua preheater raj, cua sov-exchanger tubes, condenser raj, thiab catalyst tubes nyob rau hauv tshuaj, petrochemical, thiab fais fab - cog kev pab cuam. Rau siab -kub alloy boiler raj (chromium-molybdenum), JIS G3462 (STBA qib) yog tus qauv raug.
8. Puas yog STB510 seamless lossis welded? Nws puas tuaj yeem muab tau rau ob qho tib si?
STB510 tuaj yeem muab tau raws li seamless (kub-tiav S-H lossis txias- tiav S-C) lossis raws li hluav taws xob-tsis kam-welded (ERW, E-G) raj, tag nrho nyob rau hauv tib lub npe JIS G3461 qib. Qhov kev xaiv nyob ntawm qhov loj me, qhov ntsuas siab, thiab daim ntawv thov; ERW feem ntau pheej yig dua hauv cov kab me me, thaum seamless nyiam rau siab dua -siab thiab kev pabcuam tseem ceeb.
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