X20CrMoWV12-1 steel bar yog dab tsi?
X20CrMoWV12-1 (cov ntaub ntawv naj npawb 1.4935) yog qhov kub thiab txias, creep-resistant martensitic stainless hlau. Nws yog tsim los rau cov khoom uas yuav tsum tau muaj zog, toughness thiab oxidation tsis kam ntawm siab kub, xws li turbine hniav, fasteners thiab rotors hauv fais fab nroj tsuag.
Dab tsi yog cov khoom siv hlau sib npaug rau X22CrMoV12-1?
X22CrMoV12-1 (cov ntaub ntawv naj npawb 1.4923) yog cov khoom siv cua sov-resistant martensitic stainless hlau. Nws qhov sib npaug ze tshaj plaws yog AISI 422 (S42200), raws li lawv faib kwv yees li 99% ntawm lawv cov alloy muaj pes tsawg leeg; Nws yog tsim tshwj xeeb rau kev siv kub txog li 600 degrees, xws li turbine hniav, bolts thiab rotors.
Tshuaj muaj pes tsawg leeg ntawm Stainless hlau X22CrMoV12-1
| Element | Ntau yam (%) |
|---|---|
| C (Carbon) | 0.18–0.24 dr hab |
| Yog (Silicon) | Tsawg dua los yog sib npaug li 0.50 |
| Manganese (Mn) | 0.40-0.90 Nws |
| Ni (Nickel) | 0.30-0.80 Nws |
| P (phosphorus) | Tsawg dua lossis sib npaug li 0.025 |
| S (Sulfur) | Tsawg dua lossis sib npaug li 0.015 |
| Cr (Chromium) | 11.0-12.5 Nws |
| Molybdenum (zeeg) | 0.80-1.20 Nws |
| V (Vanadium) | 0.25-0.35 Nws |
Mechanical Properties X22CrMoV12-1 (1.4923)
| Khoom | Tsim nyog | Kev Kho Mob |
|---|---|---|
| Tensile zog (Rm) | 800-950 MPa | + QT (Annealing thiab Tempering) |
| Elastic txwv ntawm 0.2% (Rp0.2) | Ntau tshaj lossis sib npaug li 600 MPa | + QT |
| Elongation ntawm tawg (A) | Ntau dua lossis sib npaug li 14% | + QT |
| Transverse caj dab (Z) | Ntau dua lossis sib npaug li 40% | + QT |
| Lub zog cuam tshuam (KV) ntawm +20 degree | Ntau dua lossis sib npaug li 27 J | + QT |
| Brinell Hardness (HBW) | Tsawg dua lossis sib npaug li 302 | +A (Annealed) |
Weldability ntawm X20CrMoWV12-1 Stainless Hlau
Preheating: Yuav tsum tau. Preheating rau qhov kub ntawm 1200 ° F - 1400 ° F (650 ° - 760 ° F) yuav tsum tau tiv thaiv kev tawg.
Vuam: Siv cov txheej txheem tsim nyog. Cov khoom siv yuav tsum tau ua tib zoo saib xyuas thaum txias; Qhov no feem ntau yuav tsum tau ua kom maj mam kom txog thaum chav tsev kub ncav cuag.
Post Weld Thaum tshav kub kub kho (PWHT): Yuav tsum tau ua kom rov qab ductility thiab txo hardness. Ua kom muaj kev ntxhov siab ntawm qhov kub ntawm kwv yees li 1100 ° F - 1400 ° F (590 ° - 760 ° F) rau 4 teev.
Kev kho cua sov ntawm stainless hlau 1.4935
1.4935 (X20CrMoWV12-1) yog ib tug creep resistant martensitic stainless hlau, tsim los rau cov ntawv thov kub txog li 650 degrees; Nws yog feem ntau siv nyob rau hauv turbine hniav thiab fastening ntsiab. Nws yog hardened los ntawm cua sov mus rau 1040℃- 1050 degree, ua raws li los ntawm quenching nyob rau hauv cov roj los yog huab cua, thiab tom qab tempered kom ua tau zoo mechanical zog, feem ntau ntawm 700 thiab 950 MPa.
Dab tsi yog qhov ceev ntawm AISI 422 stainless hlau?
Qhov ceev ntawm AISI 422 stainless hlau yog kwv yees li 7.80 g / cm³ (0.282 lb / in³). Nws yog ib qho maraging stainless hlau paub txog nws lub zog siab thiab muaj peev xwm tiv taus creep ntawm qhov kub siab; Nws yog feem ntau siv nyob rau hauv chav turbines, roj turbines thiab aerospace daim ntawv thov.
Dab tsi yog qhov txawv ntawm 1.4935 thiab 1.4835 stainless hlau?
Steels 1.4935 (X20CrMoWV12-1) thiab 1.4835 (253 MA) yog tsim los rau qhov kub thiab txias ib puag ncig, tab sis txawv hauv lawv cov qauv thiab daim ntawv thov. 1.4935 yog ib tug hardenable martensitic steel, siv rau high-zog turbine hniav ntawm kub txog li ~ 650 degrees; Rau nws feem, 1.4835 yog cov cua kub-resistant austenitic steel, tsim los muaj kev tiv thaiv zoo heev rau oxidation hauv cov khoom siv hluav taws xob ntawm qhov kub txog li 1150 degrees.
Kev siv cov khoom siv 1.4935
Kev tsim hluav taws xob: rotor hniav, turbine hniav thiab fasteners rau roj thiab chav turbines.
Kev lag luam tshuaj: Kev tsim cov khoom siv thiab ntim khoom.
Reactor technology: Cheebtsam rau kub kub.
Rau AISI 422/1.4935 cov ntaub ntawv, GNEE muaj cov kev pabcuam hauv qab no:
Ntau yam khoom siv: Nyob ntawm koj cov cuab yeej cuab tam tshwj xeeb, peb tuaj yeem muab cov khoom hauv annealed, quenched thiab tempered (Q + T), lossis subcritical annealed mob.
Txiav rau Length: Precision sawing rau qhov ntev (tsawg los yog random lengths).
Cov kev pabcuam ua haujlwm: tsis muaj kev sib tsoo, polishing (180, 240 thiab 320 grits) thiab kev kho cua sov.
Cov ntaub ntawv nthuav dav: Kev muab cov ntawv pov thawj Hoobkas (MTC) raws li EN 10204 tus qauv (3.1 lossis 3.2).
Kev tshuaj xyuas thib peb: Kev pabcuam rau kev tshuaj xyuas los ntawm cov chaw sab nraud, xws li SGS, BV, TUV lossis Lloyd's.
AISI 422 / 1.4935 Stainless hlau Bar Specifications
| Khoom zoo li | Kev cai / Specification | Qhov Loj (hli / Thickness) | Nto tiav |
|---|---|---|---|
| puag ncig bar | ASTM A565, EN 10269, EN 10088-3 | 5 hli-500mm | Dub, ci, polished, tev, av |
| square bar | ASTM A565 Cov Lus Qhia Tshwj Xeeb | 10mm × 10mm - 200mm × 200mm | Kub dov, xuab zeb blasted |
| hexagonal bar | ASTM A565 Cov Lus Qhia Tshwj Xeeb | 5mm-100mm (ntsej muag) | Txias kos, ci |
| tiaj tus bar | ASTM A565 Cov Lus Qhia Tshwj Xeeb | (Thickness) 3 hli - 100 hli × (Dav) 10 hli - 500 hli | HRAP (Kub Rolled, Annealed thiab Pickled) |
| forged bar | DIN 1.4935 / EN 10222-2 | 200-800 hli | Rough machining, tig |
| hollow bar | Raws li tus kheej kev sab laj | Sab nraud txoj kab uas hla 20 mm - 500 mm | Annealing thiab pickling |
Yog tias koj muaj cov cai tshwj xeeb rau 1.4935 stainless hlau tuav, peb zoo siab tau txais koj cov xaj. GNEE khaws cov ntaub ntawv tseem ceeb ntawm cov khoom nrov rau koj xaiv. Yog xav paub ntxiv txog cov tshuaj muaj pes tsawg leeg lossis thov cov qauv dawb, thov hu rau peb lub Hoobkas tam sim. Peb muab cov nqi sib tw thiab kev pabcuam tshwj xeeb. Email:es@gescosteel.com
