1.4546 Stainless hlau yog dab tsi?

1.4546 stainless hlau, feem ntau hu ua 15-5PH lossis UNS S15500, yog martensitic nag lossis daus-hardening stainless hlau uas muaj kev sib xyaw tshwj xeeb ntawm lub zog siab, zoo corrosion kuj, thiab zoo heev toughness. Tsim los ua kev txhim kho ntau dua 17-4PH, nws muaj qhov ua kom zoo dua microstructure ua tiav los ntawm lub tshuab nqus tsev melting thiab kev tswj xyuas nruj dua, muab cov kev hloov pauv zoo dua thiab ntau dua isotropic mechanical zog. Qhov no ua rau nws yog cov khoom ntawm kev xaiv rau qhov tseem ceeb aerospace, nuclear, thiab tshuaj ua cov ntawv thov uas muaj kev ntseeg siab thiab sib xws yog qhov tseem ceeb.

 

Cov nag lossis daus no zoo tshaj - qib hardening yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4546
ASTM / AISI (USA)	15-5PH, UNS S15500
Lub Npe	15-5PH, XM-12

Nws muaj pes tsawg leeg yog ua tib zoo sib npaug nrog me ntsis qis chromium thiab ntau dua nickel tshaj 17-4PH rau kev txhim kho toughness.

Element	C	Si	Mn	P	S	Cr	Ni	Cu	Nb+Ta
Cov ntsiab lus (%)	Tsawg dua lossis sib npaug li 0.07	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug li 0.04	Tsawg dua lossis sib npaug li 0.03	14.0 - 15.5	3.5 - 5.5	2.5 - 4.5	0.15 - 0.45

Cov khoom siv tshuab sib txawv nrog cov kev kho cua sov (piv txwv li, Kev Kho A, H900, H925, H1025, H1150).

Qhov xwm txheej	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HRC)
Kev daws teeb meem (A)	~ 690 MPa	~ 1000 MPa	~ 15%	~ 32 HRC
H900 (480℃hnub nyoog)	~ 1170 MPa	~ 1310 MPa	~ 10%	~ 44 HRC
H1025 (550℃hnub nyoog)	~ 1070 MPa	~ 1170 MPa	~ 12%	~ 38 HRC
H1150 (620℃hnub nyoog)	~ 790 MPa	~ 1000 MPa	~ 12%	~ 33 HRC

 

Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4546 / 15-5PH

Superior Toughness thiab Ductility:Muab qhov zoo dua transverse toughness thiab ductility ntau dua 17-4PH vim huv microstructure thiab optimized muaj pes tsawg leeg, nrog rau cov cuab yeej me me sib txawv ntawm longitudinal thiab transverse cov lus qhia.

Siab zog nrog zoo Corrosion Resistance:Ua tiav tensile lub zog tshaj 1300 MPa tom qab kev laus thaum tswj corrosion kuj piv rau Hom 304 stainless hlau.

Precipitation Hardening:Nws tuaj yeem siv rau hauv kev daws teeb meem -kho (softer) mob thiab tom qab ntawd muaj hnub nyoog mus rau lub zog siab nrog qhov sib txawv me me, zoo heev rau cov khoom muaj tseeb.

Zoo heev Stress Corrosion Cracking Resistance:Kev tiv thaiv zoo dua rau kev ntxhov siab corrosion tawg dua li 17-4PH, tshwj xeeb tshaj yog nyob rau hauv overaged (H1150) mob.

 

Cov ntawv thov tseem ceeb:

Aerospace:Kev tsaws iav Cheebtsam, turbine hniav, cav mounts, actuators, fasteners, thiab cov yam ntxwv tseem ceeb.

Tshuaj thiab Petrochemical:Valves, twj tso kua mis shafts, fittings, thiab reactor Cheebtsam yuav tsum tau muaj zog thiab corrosion kuj.

Kev lag luam Nuclear:Tswj pas nrig mechanisms, valve Cheebtsam, thiab structural qhov chaw yuav tsum tau zoo ib yam.

Roj & Roj:Cov cuab yeej downhole, cov khoom siv lub taub hau zoo, thiab siab -siab valve qhov chaw.

Kev kho mob:Cov cuab yeej phais, kev cog hniav orthopedic, thiab cov cuab yeej kho hniav uas xav tau biocompatibility.

Kev ua zaub mov:Cov khoom siv yuav tsum muaj zog, huv si, thiab corrosion kuj.

 

Qhov txawv ntawm 15-5PH (1.4546) thiab 17-4PH (1.4542) yog dab tsi?
Ob leeg yog nag lossis daus- hardening martensitic stainless hlau, tab sis 15-5PH muaj chromium qis me ntsis (14–15.5% vs. 15-17.5%) thiab cov ntsiab lus ntau dua nickel (3.5-5.5% vs. 3-5%). Qhov kev sib xyaw ua ke no, nrog rau kev siv lub tshuab nqus tsev feem ntau siv rau 15-5PH, ua rau cov hlau huv nrog tsawg dua, muab 15-5PH zoo dua transverse toughness thiab ductility. 15-5PH kuj nthuav tawm ntau cov khoom isotropic (zoo li cov khoom hauv txhua qhov kev taw qhia) thiab txhim kho kev tiv thaiv kev ntxhov siab} kev siv tshuaj tiv thaiv corrosion} feem ntau yog PH, thiab feem ntau PH. daim ntawv thov uas cov cuab yeej sib xws thiab kev ntseeg siab yog qhov tseem ceeb.

 

15-5PH feem ntau yog kho li cas?
Cov txheej txheem kev kho cua sov suav nrogtshuaj khontawm 1038℃± 15 degree, tuav lub sijhawm txaus (feem ntau 30 feeb yam tsawg kawg nkaus), ua raws li cov cua txias sai sai (cua cua lossis roj quench) kom ua tiav qhov A (mos, machinable xeev). Nws yog ceslausntawm qhov kub tshwj xeeb nyob ntawm qhov xav tau: 482℃rau H900 (qhov siab tshaj plaws), 496℃rau H925 (zoo zog nrog txhim kho toughness), 552℃rau H1025 (sib npaug zog), los yog 621℃rau H1150 (zoo toughness thiab stress corrosion kuj). Lub sijhawm laus feem ntau yog 4 teev, ua raws li cua txias. Muab ob npaug rau kev laus (H1150M) tuaj yeem siv los txhim kho toughness thiab seem stability. Rau cov ntawv thov tseem ceeb, kev kho cryogenic tuaj yeem ua haujlwm kom txo qis austenite khaws cia.

 

Dab tsi yog qhov kev txiav txim siab vuam rau 15-5PH?
15-5PH tuaj yeem welded siv ntau txoj hauv kev xws li TIG, MIG, thiab SMAW. Rau qhov zoo tshaj plaws, nws yuav tsum tau welded nyob rau hauv cov kev daws teeb meem - kho (Txoj Cai A) mob, tom qab ntawv tshaj tawm -weld kub kho rau qhov xav tau kev laus. Cov hlau sib xyaw ua ke muaj (feem ntau yog 15-5PH hom), txawm hais tias cov khoom siv austenitic tuaj yeem siv rau cov ntawv thov tseem ceeb. Preheating feem ntau tsis tas yuav tsum tau rau cov ntu nyias, tab sis tej zaum yuav muaj txiaj ntsig zoo rau cov ntu hnyav kom tsis txhob tawg. Tom qab-weld kev kho cua sov yog pom zoo kom rov qab kho cov khoom siv dag zog thiab kev tiv thaiv corrosion nyob rau hauv thaj chaw uas muaj kev kub ntxhov.

 

Nrhiav kev ntseeg siab ntawm 1.4546 / 15-5PH Stainless Hlau?
GNEE Steel muab siab -kev ua tau zoo 15-5PH (1.4546) stainless hlau nyob rau hauv bar, phaj, forging, hlau, thiab precision hauv av cov ntaub ntawv, muaj nyob rau hauv ntau yam kub-kho mob (A, H900, H1025, H1150) kom tau raws li xav tau aerospace thiab industrial specifications. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) ​​thiab kev txhawb nqa suav nrog kev txiav, machining, sib tsoo, thiab kev kho cua sov. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.