Birta Aan Lahayn 321 / 321H Taarikada Xaashiyaha

Alloy 321 (UNS S32100) waa saxan bir ah oo xasilan oo bixisa faa'iidada ugu weyn ee iska caabinta daxalka intergranular ka dib soo-gaadhista heerkulka roobabka chromium carbide ee u dhexeeya 800 ilaa 1500 ° F (427 ilaa 816 ° C). Alloy 321 saxan bir ah oo aan lahayn ayaa la xasiliyay ka soo horjeeda samaynta chromium carbide marka lagu daro titanium.

Alloy 321 saxan bir ah oo aan lahayn ayaa sidoo kale faa'iido u leh adeegga heerkulka sare sababtoo ah sifooyinka farsamada ee wanaagsan. Alloy 321 saxan bir ah oo bir ah ayaa bixisa gurguurta sare iyo guryaha dillaaca walaaca marka loo eego Alloy 304 iyo, gaar ahaan, Alloy 304L, kaas oo sidoo kale laga yaabo in loo tixgeliyo muujinta halka dareenka iyo daxalka intergranular ay walaac ka qabaan.

Kala duwanaanshaha xaashida birta ah ee aan-dhabta lahayn

Qalab	Cabbirka	Dhumucda	Tilmaamid
Xaashiyaha Biraha Aan Lahayn	1000mm x 2000 mm, 1220 mm x 2440 mm (4' x 8'), 1250mm x 2500 mm, 1500 mm x 3000 ilaa 6000 mm, 2000 mm x 4000 Ilaa 6000 mm	0.3 mm ilaa 120 mm	A-240

Darajo	UNS No	Ingiriiska hore		Euronorm		Iswidishka SS	Jabbaan JIS
		BS	En	Maya	Magaca
321	S32100	321S31	58B,  58C	1.4541	X6CrNiTi18-10	2337	SUUS 321
321H	S32109	321S51	-	1.4878	X6CrNiTi18-10	-	SUS 321H

Nooca 321 Steel-ka-Aan-la'aanta ah waxaa daboolaya tilmaamaha soo socda: AMS 5510, ASTM A240.

Halabuurka Kiimikada

Curiyaha	Nooca 321
Kaarboon	0.08 max.
Manganese	2.00 max
Baaruud	0.030 max.
Fosfooraska	0.045 max.
Silikoon	0.75 max.
Chromium	17.00 - 19.00
Nikkel	9.00 - 12.00
Titanium	5x(C+N) daq. - 0.70 max.
Nitrojiin	0.10 max

Guryaha Makaanikada:

Nooca	Xoogga Wax-soo-saarka 0.2% ka-baxsan (KSI)	Xoogga Jilitaanka (KSI)	% Ballaarinta (2 "dhererka cabbirka)	Hardness Rockwell
321	30 daqiiqo	75 min.	40 daqiiqo	HRB 95 max.

Samaynta
Nooca 321 si sahal ah ayaa loo samayn karaa loona sawiri karaa, si kastaba ha ahaatee, cadaadisyo sare ayaa loo baahan yahay iyo dib u soo noqosho badan ayaa la kulmaya marka loo eego birta kaarboonka iyo birta aan lahayn ferritic. Sida biraha kale ee austenitic, Nooca 321 si dhakhso ah ayuu u adkeystaa waxaana laga yaabaa inuu u baahdo jilbis ka dib samaynta daran. Joogitaanka walxaha alloying qaarkood waxay ka dhigi karaan Nooca 321 mid aad u adag in la sameeyo marka loo eego darajooyinka kale ee austenitic sida 301, 304 iyo 305.

Daawaynta kulaylka
Nooca 321 waa mid aan la adkeyn karin daawaynta kulaylka

Weldability
Nooca austenitic ee birta aan la taaban karin waxaa guud ahaan loo arkaa inay yihiin kuwo la isku alxan karo iyadoo la adeegsanayo farsamooyinka isku dhafka ah iyo iska caabinta. Tixgalin gaar ah ayaa loo baahan yahay si looga fogaado alxanka ”dillaaca kulul” iyadoo la hubinayo samaynta ferrite ee deebaajiga alxanka. Alloykan gaarka ah waxaa guud ahaan loo arkaa inuu leeyahay alxan la mid ah noocyada 304 iyo 304L. Farqiga ugu weyni waa isku-darka titanium-ka ee yareeya ama ka hortagaya roobabka karbidhida inta lagu jiro alxanka. Marka loo baahdo buuxinta alxanka, AWS E/ER 347 ama E/ER 321 ayaa inta badan la cayimaa. Nooca 321 ayaa si fiican loogu yaqaan suugaanta tixraaca macluumaad dheeraad ahna waxaa lagu heli karaa sidan.