Bakin Karfe 321 / 321H Sheets Plates

Alloy 321 (UNS S32100) an daidaita bakin karfe farantin karfe wanda ke ba da babban fa'idarsa kyakkyawan juriya ga lalatawar intergranular sakamakon bayyanar yanayin zafi a cikin kewayon hazo na chromium carbide daga 800 zuwa 1500 ° F (427 zuwa 816 ° C). Alloy 321 bakin karfe farantin karfe an daidaita shi da chromium carbide samuwar ta ƙari na titanium.

Alloy 321 bakin karfe farantin kuma yana da fa'ida don sabis na zazzabi mai girma saboda kyawawan kaddarorin injin sa. Alloy 321 bakin karfe farantin yana ba da mafi girma creep da danniya rupture Properties fiye da Alloy 304 da kuma, musamman, Alloy 304L, wanda kuma za a iya la'akari da fallasa inda hankali da intergranular lalata ne damuwa.

Kewayon Bakin Karfe Sheet

Kayan abu	Girman	Kauri	Ƙayyadaddun bayanai
Bakin Karfe Sheet	1000mm x 2000 mm, 1220 mm x 2440 mm (4' x 8'), 1250mm x 2500mm, 1500mm x 3000 zuwa 6000 mm, 2000 mm x 4000 zuwa 6000 mm	0.3 mm zuwa 120 mm	A-240

Daraja	UNS No	Tsohon Birtaniya		Euronorm		Yaren mutanen Sweden SS	JIS na Japan
		BS	En	A'a	Suna
321	S32100	321S31	58B,  58C	1.4541	X6CrNiTi18-10	2337	Farashin 321
321H	S32109	321S51	-	1.4878	X6CrNiTi18-10	-	SUS 321H

Nau'in Bakin Karfe na 321 an rufe shi da cikakkun bayanai masu zuwa: AMS 5510, ASTM A240.

Haɗin Sinadari

Abun ciki	Nau'i na 321
Carbon	0.08 max.
Manganese	2.00 max.
Sulfur	0.030 max.
Phosphorus	0.045 max.
Siliki	0.75 max.
Chromium	17.00 - 19.00
Nickel	9.00 - 12.00
Titanium	5x(C+N) min. - 0.70 max.
Nitrogen	0.10 max.

Kayayyakin Injini:

Nau'in	Ƙarfin Haɓaka 0.2% biya (KSI)	Ƙarfin Tensile (KSI)	% Tsawon Ma'auni (2 "tsawon ma'auni)	Hardness Rockwell
321	30 min.	75 min.	40 min.	Babban darajar HRB95.

Tsarin tsari
Nau'in 321 na iya samuwa da sauri kuma a zana shi, duk da haka, ana buƙatar matsi mafi girma kuma ana fuskantar ƙarin springback fiye da na carbon karfe da ferritic bakin karfe. Kamar sauran austenitic bakin karfe, Nau'in 321 aiki hardens da sauri da kuma iya bukatar annealing bayan tsanani forming.The gaban wasu alloying abubuwa iya sa Type 321 mafi wuya a samar fiye da sauran austenitic maki kamar 301, 304 da kuma 305.

Maganin Zafi
Nau'in 321 ba shi da wuya ta hanyar maganin zafi. Annealing: Heat zuwa 1750 - 2050 °F (954 - 1121 ° C), sa'an nan kuma kashe ruwa ko iska mai sanyi.

Weldability
A austenitic aji na bakin karfe ana dauka a matsayin weldable ta kowa Fusion da juriya dabaru. Ana buƙatar kulawa ta musamman don guje wa walda ”zafin fashewa” ta hanyar tabbatar da samuwar ferrite a cikin ajiyar walda. Wannan musamman gami ana ɗauka gabaɗaya yana da kwatankwacin weldability zuwa nau'ikan 304 da 304L. Babban bambanci shine ƙari na titanium wanda ke rage ko hana hazo carbide yayin walda. Lokacin da ake buƙatar filar walda, ko dai AWS E/ER 347 ko E/ER 321 galibi ana ƙayyadad da su. Nau'in 321 sananne ne a cikin littattafan tunani kuma ana iya samun ƙarin bayani ta wannan hanyar.