Super duplex 2507 vs Inconel 625: Qhov tseem ceeb sib txawv
Super duplex 2507 yog dab tsi?
Super Duplex 2507 yog lub siab -kev ua tau zoo stainless hlau alloy paub txog lub zog tshwj xeeb thiab zoo dua corrosion kuj, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig chloride, combining ferritic thiab austenitic lug. Nrog cov qib siab ntawm chromium (nyob ib ncig ntawm 25%), molybdenum (4%), thiab npib tsib xee (7%), nws muaj kev tiv thaiv zoo heev rau pitting, crevice corrosion, thiab kev ntxhov siab corrosion cracking, ua rau nws zoo tagnrho rau kev thov nyob rau hauv offshore, tshuaj ua, thiab marine industries.
SAF2507 cov khoom sib npaug yog dab tsi?
UNS S32750 yog super duplex stainless hlau, tseem hu ua SAF2507. Nws muaj nyob rau hauv cov khoom bar, phaj, yeeb nkab, fittings, forgings thiab castings. Thaum qhia txog castings, qhov ze tshaj qhov sib npaug specifications yog ASTM A890, ASTM A995 thiab ASME SA351/995 qib CE3Mn lossis 5A, kuj sau li J93404 lossis 25Cr-7Ni-Mo-N.
Inconel 625 yog dab tsi?
Inconel 625 yog ib lub siab -kev ua tau zoo nickel-chromium- molybdenum superalloy (UNS N06625) khoom plig rau nws qhov tshwj xeeb tiv thaiv corrosion (tshwj xeeb yog pitting thiab crevice), kub siab (txog 2000℃F / 1093 degree), muab peb cov kev kho mob siab heev, tsis muaj chloride, thiab kev kho cua sov. kev ntxhov siab tawg, ua rau nws tseem ceeb heev rau aerospace (jet engines), marine, thiab tshuaj ua lag luam.
Super duplex 2507 vs Inconel 625: Qhov tseem ceeb sib txawv
Inconel 625 thiab Duplex 2507 yog ob qho tib si tshwj xeeb alloys uas muaj kev ua tau zoo dua piv rau cov qauv stainless hlau. Inconel 625 alloy yog siv thaum cov hlau xav tau ua haujlwm ntawm qhov kub txog li 1800 degrees Fahrenheit. Duplex 2507 alloy yog siv thaum pitting corrosion yog ib qho kev txhawj xeeb los yog thaum vuam yuav tsum tau.
Tshuaj muaj pes tsawg leeg
| Tshuaj muaj pes tsawg leeg | Super Duplex 2507 | Ib 625 |
| Chromium (Cr) | 24-26% | 20-23% |
| Nickel (Ni) | 7-9% | 58-63% |
| Molybdenum (hli) | 3-5% | 8-10% |
| Hlau (Fe) | Tshuav | Tshuav |
| Manganese (Mn) | Tsawg dua lossis sib npaug li 1% | Tsawg dua los yog sib npaug li 0.5% |
| Silicon (Si) | Tsawg dua lossis sib npaug li 1% | Tsawg dua los yog sib npaug li 0.5% |
| Cov pa roj carbon (C) | Tsawg dua lossis sib npaug li 0.03% | Tsawg dua lossis sib npaug li 0.10% |
| Phosphorus (P) | Tsawg dua lossis sib npaug li 0.035% | Tsawg dua lossis sib npaug li 0.015% |
| Sulfur (S) | Tsawg dua lossis sib npaug li 0.02% | Tsawg dua lossis sib npaug li 0.015% |
Mechanical Properties
| Super Duplex 2507 | Ib 625 | |
| Tensile zog (MPa) | 620-850 MPa | 827-1034 MPa |
| Yield zog (MPa) | Ntau dua lossis sib npaug li 450 MPa | 415-690 MPa |
| Elongation (%) | Ntau dua lossis sib npaug li 25% | Ntau dua lossis sib npaug li 30% |
| Hardness (HRC) | 28-34 HRC | 30-35 HRC |
| Modulus ntawm Elasticity (GPa) | 200 | 210–220 |
| Thermal Expansion (10^-6 / degree) | 16.1 × 10^-6 | 13.4 × 10^-6 |
| Qhov ceev (g / cm³) | 7.80 | 8.44 |
Super Duplex Stainless Steel 2507 vs Inconel 625: Corrosion Resistance
Super duplex stainless hlau 2507 ua pov thawj zoo heev rau pitting corrosion, crevice corrosion, thiab kev nyuaj siab corrosion cracking, tshwj xeeb tshaj yog nyob rau hauv chloride - nplua nuj ib puag ncig, ua tau zoo heev nyob rau hauv hnyav tej yam kev mob xws li cov nyob rau hauv cov roj thiab roj, petrochemical, thiab marine industries. Inconel 625, nrog nws cov nickel siab (58-63%) thiab molybdenum (8-10%) cov ntsiab lus, muaj kev tiv thaiv zoo heev rau oxidation, sulfidation, thiab kev xeb ntawm qhov kub thiab txias.
Super Duplex Stainless Steel 2507 vs Inconel 625: Lub zog
Super duplex stainless hlau 2507 muaj lub zog tensile xws li 620 MPa rau 850 MPa thiab lub zog tawm los tshaj 450 MPa. Qhov no ua rau nws zoo tagnrho rau siab -siab, siab- kev ntxhov siab ib puag ncig xws li roj thiab roj pipelines thiab cov qauv sab nrauv. Inconel 625 muaj lub zog tensile qis me ntsis (827-1034 MPa), tab sis nws yog tsim los tswj nws lub zog ntawm qhov kub siab tshaj 980℃(1800℃F).
Qhov txawv ntawm Inconel 625 thiab 316 yog dab tsi?
Inconel 625 ua tau zoo tshaj stainless hlau 316 nyob rau hauv siab -kub kev ua haujlwm. Inconel 625 tuav nws lub zog mus txog 1800℃F (1000 degree), thaum qhov tseeb txwv qhov kub ntawm stainless hlau 316 feem ntau yog nyob ib ncig ntawm 1000℃F (538 degree). Tshaj li qhov kub thiab txias, nws lub zog txhua yam txo qis, thiab nws yooj yim rau scaling thiab oxidation.
