1.4545 Stainless hlau yog dab tsi?

1.4545 stainless hlau, kuj paub los ntawm UNS S45000 (Custom 450) los yog S45500 (Custom 455), yog martensitic nag lossis daus - hardening stainless hlau. Nws muaj kev sib xyaw ua ke zoo ntawm lub zog siab, nruab nrab corrosion kuj, thiab zoo heev toughness. Cov qib no feem ntau yog siv rau hauv aerospace, marine, thiab tshuaj siv tshuaj uas muaj zog heev - mus rau - qhov hnyav piv thiab tiv thaiv kev ntxhov siab corrosion tawg yog yuav tsum tau.

Qhov no muaj ntau yam siab - qib muaj zog tau lees paub raws li ntau yam kev xaiv thoob ntiaj teb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4545
ASTM / AISI (USA)	Kev Cai 450, UNS S45000
Lwm txoj	Kev Cai 455, UNS S45500

Nws muaj xws li chromium, npib tsib xee, molybdenum, thiab tooj liab rau qhov sib npaug ntawm lub zog thiab kev tiv thaiv corrosion.

Element	C	Si	Mn	Cr	Ni	Mo	Cu	Nb/Ta
Cov ntsiab lus (%)	Tsawg dua los yog sib npaug li 0.05	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug rau 1.0	14.0 - 16.0	5.0 - 7.0	0.5 - 1.0	1.25 - 1.75	0.5 - 0.9

Mechanical zog sib txawv heev nrog kev kho cua sov.

Qhov xwm txheej	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HRC)
Annealed	~ 690 MPa	~ 1035 MPa	~ 10%	~ 32 HRC
Hnub nyoog (H900)	~ 1240 MPa	~ 1380 MPa	~ 8%	~ 44 HRC

 

Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4545 / Custom 450

Siab zog thiab toughness:Ua tau siab tensile thiab tawm los lub zog tom qab kev laus thaum tuav zoo toughness thiab ductility.

Zoo Corrosion Resistance:Muaj kev tiv thaiv corrosion zoo ib yam li Hom 304 stainless hlau hauv ntau qhov chaw, nrog kev txhim kho kev tiv thaiv kev ntxhov siab corrosion tawg.

Precipitation Hardening:Nws tuaj yeem raug machined hauv cov tshuaj - kho mob thiab tom qab ntawd muaj hnub nyoog mus rau lub zog siab nrog kev cuam tshuam tsawg heev.

 

Cov ntawv thov tseem ceeb:

Aerospace:Cov yam ntxwv ntawm cov khoom, fasteners, tsaws iav qhov chaw, thiab lub cav mounts.

Tubrog nkoj:Propeller shafts, li qub, thiab fittings nyob rau hauv seawater ib puag ncig.

Kev ua tshuaj lom neeg:Pump shafts, valve stems, thiab siab -cov khoom muaj kev ntxhov siab hauv cov xov xwm corrosive.

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

 

Qhov txawv ntawm Custom 450 (1.4545) thiab 17-4PH (1.4542) yog dab tsi?
Kev cai 450 feem ntau muaj qhov zoo dua toughness thiab ductility, tshwj xeeb tshaj yog nyob rau hauv transverse kev taw qhia, vim nws huv si microstructure thiab sib npaug alloying. Thaum ob qib muab lub zog siab thiab nruab nrab corrosion kuj, Kev Cai 450 feem ntau yog xaiv rau cov ntawv thov uas yuav tsum tau ua kom muaj zog tawg zoo dua thiab ua haujlwm rau kev ntxhov siab corrosion tawg hauv ib puag ncig chloride. 17-4PH tuaj yeem muaj qhov nyuaj dua me ntsis thiab hnav tsis kam hauv qee qhov xwm txheej.

 

Kev kho cua sov dab tsi pom zoo rau 1.4545 stainless hlau?
Rau cov khoom zoo, cov khoom siv feem ntau yogtshuaj khontawm 1040℃tom qab txias txias. Nws yog ceslausntawm qhov kub thiab txias ntawm 480℃thiab 620 degree, nyob ntawm qhov xav tau lub zog thiab qhov sib npaug toughness. Kev laus qis dua (piv txwv li, 480℃rau H900) yield zog dua thiab hardness, thaum kub dua (piv txwv li, 620℃rau H1150) muab zoo toughness thiab ductility. Ua ntej-machining feem ntau yog ua nyob rau hauv cov tshuaj- kho mob.

 

Nrhiav kev ntseeg siab ntawm 1.4545 / Custom 450 Stainless Hlau?
GNEE Steel muab cov khoom siv siab -kev ua tau zoo Custom 450 (1.4545) stainless hlau hauv bar, phaj, thiab forging cov ntaub ntawv, muaj nyob rau hauv ntau yam cua sov- kho mob kom tau raws li xav tau aerospace, marine, thiab industrial specifications. Peb muab tag nrho cov ntaub ntawv pov thawj thiab kev txhawb nqa. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.