Ibyuma bitagira umwanda 321 / 321H Amabati

Alloy 321 (UNS S32100) itajegajega ibyuma bitagira umwanda bitanga nk'inyungu nyamukuru yo kurwanya ruswa yangirika nyuma yo guhura n'ubushyuhe mu mvura ya chromium karbide iri hagati ya 800 na 1500 ° F (427 kugeza 816 ° C). Alloy 321 isahani idafite ibyuma ihagarikwa kurwanya chromium karbide hiyongereyeho titanium.

Alloy 321 isahani idafite ibyuma nayo ifite akamaro muri serivisi yubushyuhe bwo hejuru kubera imiterere yubukanishi. Alloy 321 icyuma kidafite ibyuma gitanga ibintu byinshi kandi bigabanuka kurenza Alloy 304 na cyane cyane, Alloy 304L, ishobora no gufatwa nkigaragaza aho gukangurira no kwangirika kw’imiterere.

Urutonde rwurupapuro rwicyuma

Ibikoresho	Ingano	Umubyimba	Ibisobanuro
Urupapuro rwicyuma	1000 mm x 2000 mm, 1220 mm x 2440 mm (4 ′ x 8 ′), 1250 mm x 2500 mm, 1500 mm x 3000 Kuri mm 6000, 2000 mm x 4000 Kuri mm 6000	0,3 mm Kuri mm 120	A-240

Icyiciro	UNS No.	Abongereza bakera		Euronorm		SS yo muri Suwede	Ikiyapani JIS
		BS	En	Oya	Izina
321	S32100	321S31	58B, 58C	1.4541	X6CrNiTi18-10	2337	SUS 321
321H	S32109	321S51	-	1.4878	X6CrNiTi18-10	-	SUS 321H

Ubwoko 321 Ibyuma bitagira umuyonga bitwikiriye ibisobanuro bikurikira: AMS 5510, ASTM A240.

Ibigize imiti

Ikintu	Andika 321
Carbone	0.08 max.
Manganese	2.00 max.
Amazi	0.030 max.
Fosifore	0.045 max.
Silicon	0,75 max.
Chromium	17.00 - 19.00
Nickel	9.00 - 12.00
Titanium	5x (C + N) min. - 0,70 max.
Azote	0.10 max.

Ibikoresho bya mashini:

Andika	Imbaraga Zitanga 0.2% offset (KSI)	Imbaraga za Tensile (KSI)	Kurambura (2 "Uburebure bwa Gauge)	Gukomera Rockwell
321	30 min.	75 min.	Imin. 40.	HRB 95 max.

Imiterere
Ubwoko 321 burashobora guhita bushingwa kandi bugashushanywa, icyakora, birakenewe imbaraga nyinshi kandi kugaruka kwinshi guhura kuruta ibyuma bya karubone hamwe nicyuma cya ferritic. Kimwe nibindi byuma bya austenitis bitagira umuyonga, Ubwoko 321 bukora cyane kandi birashobora gusaba annealing nyuma yo gushingwa bikabije.Hariho ibintu bimwe na bimwe bivangavanze birashobora gutuma Ubwoko 321 bugora gukora kuruta andi manota ya austenitike nka 301, 304 na 305.

Kuvura Ubushuhe
Ubwoko 321 ntibukomera mugutunganya ubushyuhe.Gushyira hamwe: Shyushya 1750 - 2050 ° F (954 - 1121 ° C), hanyuma kuzimya amazi cyangwa gukonjesha ikirere.

Weldability
Icyiciro cya austenitis cyuma kitagira umwanda muri rusange gifatwa nkigishobora gusudira nubuhanga busanzwe bwo guhuza no kurwanya. Birasabwa kwitabwaho cyane kugirango wirinde gusudira "gushyuha" wizeza ko ferrite yabitswe. Iyi mavuta yihariye muri rusange ifatwa nkaho igereranywa nubwoko 304 na 304L. Itandukaniro rikomeye ninyongera ya titanium igabanya cyangwa ikumira imvura ya karbide mugihe cyo gusudira. Iyo uwuzuza weld akenewe, haba AWS E / ER 347 cyangwa E / ER 321 irasobanurwa cyane.Ubwoko bwa 321 burazwi cyane mubitabo byerekana kandi amakuru menshi arashobora kuboneka murubu buryo.