Duplex qib 1.4462, 1.4410, 1.4501 THIAB 1.4507 yog dab tsi?
DIN EN 1.4462, 1.4410, 1.4501 thiab 1.4507 yog duplex thiab super duplex stainless hlau designations siv hla ntau DIN, EN thiab ISO qauv.
DIN stands rau Deutsches Institut für Normung eV, thiab nws yog lub teb chaws German lub koom haum rau kev tsim thiab txij nkawm ntawm ib ncig ntawm peb caug txhiab DIN Standards, npog ze li ntawm txhua qhov chaw ntawm technology. Feem ntau ntawm cov qauv DIN cuam tshuam tau muab tso rau hauv Euronorm (EN) cov qauv rau kev saws me nyuam dhau lub teb chaws Yelemees.
Cov Qib sib txawv ntawm Duplex Stainless SteelsDIN EN 1.4462
DIN EN 1.4462 sib npaug rau UNS S31803 (ASTM A182 F51) thiab UNS S32205 (ASTM A182 F60). Cov ntawv sau yav dhau los yog qhov qub rau 22% Cr duplex stainless hlau. Txawm li cas los xij, raws li tau piav qhia hauv tsab xov xwm dhau los, cov tuam txhab tsim kho qhov sib xyaw ua ke ntawm qhov kawg ntawm qhov txwv kom txhim kho pitting corrosion kuj.
Qib no, nrog rau kev nruj dua, muaj npe raws li UNS S32205. Yog li ntawd, S32205 tuaj yeem ua tau ob daim ntawv pov thawj raws li S31803 tab sis tsis hloov pauv. Nws suav txog kwv yees li 80% ntawm tag nrho duplex stainless hlau ntau lawm. Langley Alloys Tshuag ntawm DIN EN 1.4462 suav nrog Sanmac 2205, uas yog Sandvik cov khoom lag luam uas muab 'kev txhim kho machinability raws li tus qauv'. Peb cov khoom lag luam mus los ntawm ½ "mus txog 450mm txoj kab uas hla cov khoom tuav, ntxiv rau hollow tuav thiab phaj ib yam nkaus.
DIN EN 1.4410
DIN EN 1.4410 sib npaug rau UNS S32750 (ASTM A182 F53). Qhov no yog 25% Cr super duplex stainless hlau feem ntau txhawb nqa los ntawm Sandvik li SAF2507. Nrog rau qhov nce chromium cov ntsiab lus piv nrog 1.4462 nws muaj kev txhim kho pitting corrosion kuj. Lub zog tawm los kuj tseem siab dua, tso cai rau cov neeg tsim khoom kom txo qis qhov loj me rau cov ntawv thov kev thauj khoom. Langley Alloys stocks SAF2507 khoom tuav los ntawm Sandvik, qhov ntau thiab tsawg los ntawm ½ "mus rau 16" txoj kab uas hla.
DIN EN 1.4501
DIN EN 1.4501 sib npaug rau UNS S32760 (ASTM A182 F55). Lub hauv paus pib ntawm qib no tuaj yeem taug qab mus rau kev txhim kho Zeron 100 los ntawm Platt & Mather, Manchester UK. Nws yog lwm super duplex stainless hlau raws li 25% Cr muaj pes tsawg leeg, tab sis nrog ntxiv ntawm tungsten. Langley Alloys stocks SAF32760 khoom tuav los ntawm Sandvik, qhov ntau thiab tsawg ntawm ½ "mus rau 16" txoj kab uas hla.
DIN EN 1.4507
DIN EN 1.4507 sib npaug rau UNS S32550 (ASTM A182 F61). Qhov no, nyob rau hauv lem, kwv yees rau Ferralium 255, tus thawj super duplex stainless hlau tsim los ntawm Langley Alloys. Tshaj tawm xyoo 1969, tam sim no nws tau muab ntau tshaj 50 xyoo kev pabcuam ua tiav hauv ntau hom kev thov.
Piv nrog F53 thiab F55 nws muab kev txhawb zog thiab kev ua haujlwm corrosion. Nws qhov tsawg kawg nkaus tawm los muaj zog tshaj 85ksi, thaum lwm qib raug txwv rau 80ksi. Tsis tas li ntawd, nws muaj txog li 2.0% ntawm tooj liab, uas pab pitting corrosion kuj. Langley Alloys stocks Ferralium 255-SD50 nyob rau hauv qhov ntau thiab tsawg los ntawm 5/8 "mus rau 14" txoj kab uas hla khoom bar, ntxiv rau daim hlau mus txog 3" thickness.
Ib tug xov tooj ntawm lwm yam duplex stainless hlau muaj, xws li lean duplex DIN EN 1.4362 (F68, UNS S32304) thiab hyper duplex DIN EN 1.4658 (UNS S32707). Txawm li cas los xij, cov khoom no feem ntau yog siv los ua cov raj thiab tsis tuaj yeem muaj los ntawm Tshuag.
Alloys Los ntawm Langley Alloys
Langley Alloys muaj ntau yam kev ua haujlwm zoo tshaj plaws ntawm duplex thiab super duplex stainless hlau, ua haujlwm los ntawm cov chaw hauv UK thiab Asmeskas (Portland, Houston).
