Puas yog koj tab tom nrhiav kev ua haujlwm siab stainless hlau raj rau cov khoom siv hluav taws xob, muaj peev xwm tiv taus qhov kub thiab txias thiab kev ua haujlwm tsis zoo? GNEE yog lub chaw muag khoom thoob ntiaj teb uas ntseeg siab nrog ntau dua 18 xyoo ntawm kev paub hauv kev muab cov khoom zoo stainless hlau. Peb cov neeg siv khoom npog ntau tshaj 50 lub teb chaws thiab peb cov khoom xa tawm txhua xyoo ntau tshaj 5000 tons. Peb tuav ntau daim ntawv pov thawj, suav nrog ISO 9001 thiab PED, thiab nruj me ntsis ua raws li cov qauv kev lag luam, kom ntseeg tau qhov zoo tshaj plaws thiab kev ntseeg siab rau kev siv cov khoom siv hluav taws xob.
Peb EN 1.4901 stainless hlau raj rau cov khoom siv hluav taws xob yog tsim tshwj xeeb rau qhov kub thiab txias ib puag ncig. Tsim nyob rau hauv nruj raws li EN 10216-5 thiab EN 10297-2 cov qauv, cov hlab no nthuav qhia tshwj xeeb thermal stability. Ntawm 650 degree, nws qhov creep fracture zog tom qab 10 000 teev yog ntau dua los yog sib npaug rau 48 MPa, deb tshaj qhov kev ua tau zoo ntawm cov qauv qib 1.4903 thiab 310S.
Los tubos sin costura de acero inoxidable EN 1.4901 se someten a un tratamiento térmico especializado de normalizado y revenido. Mediante un control preciso de la temperatura de normalizado (980–1020 °C) y de revenido (730–780 °C), se logra un refinamiento del grano del 25–30 %. Este proceso aumenta la resistencia a la tracción a 620–850 MPa, el límite elástico a >450 MPa y la elongación a >20%. Qhov kev kho no zoo tshem tawm cov kev ntxhov siab sab hauv, tiv thaiv kev deformation ntawm qhov kub thiab txias thiab ua kom muaj kev ncaj ncees nyob rau hauv lub sij hawm ntev nyob rau hauv cyclic thermal loads.
Peb muab EN 1.4901 seamless raj tsim los ntawm kev kos duab txias thiab kub dov txheej txheem. Peb cov khoom lag luam npog sab nraud ntawm 6mm txog 76mm, nrog phab ntsa thicknesses ntawm 1.0mm txog 8.0mm. Standard ntev muaj xws li 6m, 9m thiab 12m. Tsis tas li ntawd, peb muab cov kev pabcuam txiav thiab beveling tus kheej raws li cov kev xav tau tshwj xeeb ntawm txhua tus neeg siv khoom.
Peb lav tias txhua batch ntawm cov raj ua tau raws li ASTM, ASME thiab EN cov qauv, ua kom tiav kev taug qab los ntawmPMI (Positive Material Identification)thiab spectroscopic tsom xam. Peb sawv tom qab peb cov khoom los ntawm guaranteeing a100% ua rawsnrog tag nrho cov specifications xav tau.
Kev qhia tshwj xeeb ntawm Stainless Hlau Round Tubes EN 1.4901
| Txoj cai | TS EN 10216-2 Seamless steel raj rau kev siv siab |
|---|---|
| Sab nraud Diameter (OD) | 10.3mm-219.1 hli |
| Phab ntsa Thickness (EP) | 1.0mm-25 hli |
| Ntev | Ib qho random, ob chav random lossis ntev ntev (txog 24 m) |
| Kev kho cua sov | Normalized (1040℃-1090 degree) + Kub (730℃-780 degree) |
| Kev sim muaj | Hydrostatic, ultrasonic (UT), eddy tam sim no (ET), grain loj, creep test |
Chemical Composition (%)
Qhov sib npaug ntawm vanadium, niobium thiab tungsten muab qib asuperior thermal stability.
| Cov khoom | c | Yog lawm | mn | Q | Yog lawm | Cr | mo | W | V | Nb | N |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Min. | 0.09 ib | - | 0.30 Nws | - | - | 8.50 Nws | 0.90 ib | 0.90 ib | 0.18 | 0.06 ib | 0.03 ib |
| Max. | 0.13 | 0.50 ib | 0.60 ib | 0.020 ib | 0.010 ib | 9.50 Nws | 1.10 | 1.10 | 0.25 | 0.10 | 0.07 ib |
Mechanical Properties (ntawm chav tsev kub)
EN 1.4901 cov raj feem ntau yog muab rau hauv qhov xwm txheejNormalized thiab Tempered (N + T)los lav qhov ruaj khov martensitic qauv.
| Khoom | Tus nqi (yam tsawg kawg) |
|---|---|
| Tensile zog (Rm) | 640-820MPa |
| Elastic txwv (ReH) | Ntau dua lossis sib npaug li 450 MPa |
| Elongation (A5) | Ntau dua lossis sib npaug li 17% (ntev) |
| Lub zog cuam tshuam (KV2) | Ntau dua lossis sib npaug li 40 J (ib +20 degree) |
| Brinell Hardness (HBW) | 190-250 HWB |
Creep Rupture Resistance ntawm Kub Kub (Reference)
Qhov txiaj ntsig tseem ceeb ntawm EN 1.4901 yog nws tus cwj pwm nyob rau hauv qhov nro ntawm qhov kub siab.
| Kub (degree) | Kwv yees creep rupture zog 100,000 h (MPa) |
|---|---|
| 550 degrees | ~ 160-180 ib |
| 600 degrees | ~ 100-120 |
| 620 degrees | 80-95 : kuv |
Lub cev muaj zog
| Khoom | Tus nqi (ntawm 20 degree) |
|---|---|
| Qhov ntom | 7.78 g / cm³ |
| Thermal conductivity | 24 W / (m K) |
| Elasticity Module | 210 GP ua |
| Thermal expansion coefficient | 10.9 × 10⁻⁶ / K (20-200 degree) |
Stainless hlau raj EN 1.4901 vs P91 raj
EN 1.4901 (tseem hu ua EN 1.4901 yog ib qho kev txhim kho ntawm P91, muab lub zog ntau dua thiab ua haujlwm kub ntau dua ua tsaug rau qhov sib ntxiv ntawm tungsten.
NDT - Kev Xeem Tsis Muaj Kev Ua Phem
Eddy Current Test (ET) thiab Ultrasonic Test (UT): Kev tshuaj xyuas tiav ntawm lub raj tau ua tiav.
Hydrostatic Test: Qhov tsis muaj qhov xau ntawm qhov tsim siab tau lees paub.
Granulometric Test: Ib qho loj me me ua rau muaj kev tiv thaiv ntau dua rau kev qaug zog thiab corrosion ntawm cov khoom.
Eddy tam sim no xeem
Cov txheej txheem ntim tshwj xeeb
| Ntim Hom | Ideal Application | Qib tiv thaiv |
|---|---|---|
| Hexagonal Beams | Standard seamless kav, loj txheej txoj kab uas hla. | Heavy luag hauj lwm steel strapping nrog nylon slings kom yooj yim unloading. |
| Wrapping nrog Woven Bag | Cold dov raj nrog rhiab nto finishes. | Zam kev sib txhuam thiab kev sib cuag hlau-rau-hlau thaum lub thawv thauj khoom. |
| Plywood Boxes / Boxes nrog Hlau Structure | Cov raj rau cov khoom siv hluav taws xob sib txawv (cov phab ntsa nyias) lossis cov raj uas muaj qhov me me sab nraud. | Kev tiv thaiv siab tshaj plaws. Tiv thaiv kev khoov thiab tiv thaiv cov ntsev cua corrosion. Pom zoo rau tag nrho cov hiav txwv freight. |
