1.4980 Stainless hlau yog dab tsi?

1.4980 stainless hlau, feem ntau hu ua A-286 los yog UNS S66286, yog ib qho hlau-puag superalloy uas sib txuas lub zog siab, zoo heev creep resistance, thiab zoo oxidation kuj ntawm qhov kub siab txog li 700℃. Los ntawm nag lossis daus- hardening kev kho cua sov, nws ua tiav cov cuab yeej tshwj xeeb thaum tuav cov ntaub zoo thiab weldability. Qhov no ua rau nws cov khoom xaiv rau aerospace, gas turbine, thiab high-temperature fastener applications qhov twg cov pa stainless hlau tsis muaj qhov yuav tsum tau muaj zog ntawm qhov kub siab.

 

Qhov siab no - kub nag lossis daus - hardening alloy yog tus qauv raws li cov txheej txheem thoob ntiaj teb tseem ceeb.

Txuj	Qib sib npaug
EN (Tebchaws Europe)	1.4980
ASTM / AISI (USA)	A-286, UA S66286
Lub Npe	A-286, hlau 286

Nws muaj pes tsawg leeg muaj xws li titanium thiab txhuas rau lub hnub nyoog - hardening, nrog rau npib tsib xee thiab chromium rau siab - kub stability.

Element	C	Si	Mn	P	S	Cr	Ni	Mo	Ti	Al	V	B
Cov ntsiab lus (%)	Tsawg dua los yog sib npaug li 0.08	Tsawg dua los yog sib npaug rau 1.0	Tsawg dua los yog sib npaug rau 2.0	Tsawg dua lossis sib npaug li 0.025	Tsawg dua lossis sib npaug li 0.025	13.5 - 16.0	24.0 - 27.0	1.0 - 1.5	1.9 - 2.3	Tsawg dua lossis sib npaug li 0.35	0.10 - 0.50	0.003 - 0.010

Nws muaj lub zog siab thiab zoo ductility, tshwj xeeb tshaj yog tom qab kev laus.

Qhov xwm txheej	Yield zog (Rp0.2)	Tensile zog (Rm)	Elongation (A)	Hardness (HRC)
Kev kho mob	~ 690 MPa	~ 1035 MPa	~ 20%	~ 30 HRC
Hnub nyoog	~ 965 MPa	~ 1240 MPa	~ 15%	~ 38 HRC

 

Cov yam ntxwv tseem ceeb thiab kev siv ntawm 1.4980 / A-286

Zoo heev High -Temperature Strength:Tuav siab tensile thiab creep zog mus txog 700℃(1290℃F), ua tau zoo tshaj tus qauv stainless hlau ntawm qhov kub siab.

Zoo Oxidation thiab Corrosion Resistance:Resistant scaling thiab oxidation nyob rau hauv huab cua txog li 815 degree, nrog rau nruab nrab corrosion kuj nyob rau hauv ntau qhov chaw.

Precipitation Hardening:Nws tuaj yeem muab tshuaj kho thiab hnub nyoog kom ua tiav kev sib xyaw ua ke ntawm lub zog siab thiab zoo ductility.

Fabricability zoo:Yuav tsim, machined, thiab welded nyob rau hauv cov tshuaj -kho mob ua ntej zaum kawg aging.

 

Cov ntawv thov tseem ceeb:

Aerospace:Turbine blades, afterburner Cheebtsam, fasteners, casings, thiab dav hlau cav qhov chaw.

Gas Turbines:Bolts, studs, shafts, thiab siab - qhov kub thiab txias yam ntxwv.

Automotive:Turbocharger Cheebtsam thiab siab -kev ua haujlwm tso pa tawm.

Nuclear:Reactor Cheebtsam thiab siab -kub fasteners.

Industrial:High-cov kev ntxhov siab fasteners thiab cov khoom siv rau kev ua haujlwm siab - kub.

 

Qhov txawv ntawm A-286 (1.4980) thiab 17-4PH (1.4542) yog dab tsi?
A-286 yog austenitic superalloy tsim feem ntau rau siab - qhov kub thiab txias tsis kam, thaum 17-4PH yog cov nag lossis daus martensitic- khov stainless hlau tsom rau chav siab siab- qhov kub thiab txias zog thiab nruab nrab corrosion kuj. A-286 khaws nws lub zog thiab oxidation tsis kam ntawm qhov kub txog li 700 degree, thaum 17-4PH feem ntau txwv rau qhov kub thiab txias (ze li 300℃). A-286 kuj tseem muaj kev nkag siab zoo dua rau kev pabcuam kub kub mus ntev. Ntawm chav tsev kub, 17-4PH tuaj yeem ua tiav lub zog siab dua (txog 1310 MPa vs . 1240 MPa rau A-286). A-286 tsis yog hlau nplaum, thaum 17-4PH yog hlau nplaum.

 

Dab tsi yog qhov kev kho cua sov rau A-286?
Kev kho cua sov txheem rau A-286 suav nrog:

Kev Kho Mob:Tshav kub rau 980℃± 15 degree, tuav rau 1 teev, tom qab ntawd txias txias (roj lossis dej quench) kom ua tiav cov qauv muag muag

Kev laus:Kub rau 720℃± 10 degree, tuav rau 16 teev, ces cua txias rau chav tsev kub

Qhov kev laus no precipitates lub gamma prime theem (Ni₃(Al, Ti)), uas muab lub siab - kub lub zog

Yuav tsum tau saib xyuas kom tsis txhob dhau- kev laus lossis raug rau qhov kub thiab txias uas tuaj yeem ua rau muaj kev puas tsuaj rau theem

Rau qhov siab tshaj plaws ntawm kev ntxhov siab rupture, kev kho ob zaug kev laus tuaj yeem ua haujlwm

 

Dab tsi yog qhov kev txiav txim siab vuam rau A-286?
A-286 tuaj yeem welded siv ntau txoj hauv kev suav nrog TIG thiab MIG, tab sis yuav tsum tau ceev faj. Cov ntsiab lus tseem ceeb suav nrog:

Vuam yuav tsum tau ua nyob rau hauv cov kev daws teeb meem - kho mob

Muab cov hlau sib txuam (A-286 hom) raug pom zoo

Kev siv hluav taws xob tsawg tsawg pab tiv thaiv kev tawg thiab tswj cov khoom

Tom qab -weld aging yog yuav tsum tau kho kom rov muaj zog

Rau cov ntawv thov tseem ceeb, cov txheej txheem vuam yuav tsum tsim nyog

Kev tiv thaiv vuam tuaj yeem siv rau cov ntu nyias

 

Nrhiav kev ntseeg siab ntawm 1.4980 / A-286 Stainless Hlau?
GNEE Steel muab siab -kev ua tau zoo A-286 (1.4980) superalloy nyob rau hauv bar, hlau, forging, thiab fastener cov ntaub ntawv rau xav tau aerospace thiab high-temperature daim ntaub ntawv. Peb muab cov ntaub ntawv pov thawj tag nrho (EN 10204 3.1) thiab kev txhawb nqa suav nrog kev txiav, machining, thiab kev kho cua sov. Yog tias koj muaj kev xav tau, thov koj xav tiv tauj peb.