Igwe anaghị agba nchara 321 / 321H mpempe akwụkwọ

Alloy 321 (UNS S32100) bụ efere igwe anaghị agba nchara kwụsie ike nke na-enye dị ka isi uru ya bụ ezigbo nguzogide corrosion intergranular na-eso ekpughe ọnọdụ okpomọkụ na oke mmiri nke chromium carbide sitere na 800 ruo 1500 ° F (427 ruo 816 Celsius C). Alloy 321 igwe anaghị agba nchara efere na-kwụsi ike megide chromium carbide guzobe site na mgbakwunye na titanium.

Alloy 321 igwe anaghị agba nchara efere bụkwa uru maka elu okpomọkụ ọrụ n'ihi na ya ezi n'ibu Njirimara. Alloy 321 igwe anaghị agba nchara efere na-enye elu creep na nrụgide mgbawa Njirimara karịa Alloy 304 na, karịsịa, Alloy 304L, nke nwekwara ike na-atụle maka ikpughe ebe sensitization na intergranular corrosion bụ nchegbu.

Oke mpempe akwụkwọ igwe anaghị agba nchara

Ihe onwunwe	Nha	Ọkpụrụkpụ	Nkọwapụta
Mpempe igwe anaghị agba nchara	1000 mm x 2000 mm, 1220 mm x 2440 mm (4' x 8'), 1250 mm x 2500 mm; 1500 mm x 3000 ruo 6000 mm, 2000 mm x 4000 ruo 6000 mm	0.3 mm ruo 120 mm	A-240

Ọkwa	UNS Mba	Ochie British		Euronorm		Swedish SS	Japanese JIS
		BS	En	Mba	Aha
321	S32100	321S31	58B,  58C	1.4541	X6CrNiTi18-10	2337	Sus 321
321H	S32109	321S51	-	1.4878	X6CrNiTi18-10	-	SUS 321H

Ụdị 321 igwe anaghị agba nchara kpuchie site na nkọwa ndị a: AMS 5510, ASTM A240.

Ngwakọta kemịkalụ

Ihe	Ụdị 321
Carbon	0.08 kacha.
Manganese	2.00 kacha.
sọlfọ	0.030 kacha.
Phosphorus	0.045 kacha.
Silikoni	0.75 kacha.
Chromium	17.00 - 19.00
Nickel	9.00 - 12.00
Titanium	5x(C+N) nkeji. - 0.70 max.
Nitrogen	0.10 kacha.

Ngwongwo igwe:

Ụdị	Mbipụta ike 0.2% akwụ ụgwọ (KSI)	Ike tensile (KSI)	% elongation (2" ogologo nlele)	Obi ike Rockwell
321	30 min.	75 min.	40 min.	HRB 95 max.

Formability
Ụdị 321 nwere ike ịmepụta ngwa ngwa ma dọta ya, Otú ọ dị, a na-achọ nrụgide dị elu ma na-ezute ọtụtụ mmiri azụ karịa maka carbon steel na ferritic igwe anaghị agba nchara. Dị ka ndị ọzọ austenitic igwe anaghị agba nchara, Ụdị 321 na-arụsi ọrụ ike ngwa ngwa na nwere ike ịchọ annealing mgbe siri ike forming.The ọnụnọ nke ụfọdụ alloying ọcha nwere ike ime ka ụdị 321 ọzọ siri ike na-etolite karịa ndị ọzọ austenitic akara ule dị ka 301, 304 na 305.

Ọgwụgwọ okpomọkụ
Ụdị 321 abụghị ihe siri ike site na ọgwụgwọ okpomọkụ. Annealing: Kpoo ọkụ na 1750 - 2050 ° F (954 - 1121 ° C), mgbe ahụ, mmiri na-emenyụ ma ọ bụ ikuku dị jụụ.

Weldability
A na-ewerekarị klas austenitic nke igwe anaghị agba nchara dị ka weldable site na usoro njikọta na nguzogide nkịtị. Achọrọ nlebara anya pụrụ iche iji zere weld ”ọkụ na-ekpo ọkụ” site n'ịkwado nguzobe nke ferrite na nkwụnye ego weld. A na-ewerekarị alloy a ka ọ nwere ụdị weldability yiri nke 304 na 304L. Nnukwu ihe dị iche bụ mgbakwunye titanium nke na-ebelata ma ọ bụ na-egbochi mmiri ozuzo carbide n'oge ịgbado ọkụ. Mgbe achọrọ ndochi weld, a na-akọwakarị AWS E/ER 347 ma ọ bụ E/ER 321. A maara ụdị 321 nke ọma na akwụkwọ ntụaka na enwere ike nweta ozi ndị ọzọ n'ụzọ dị otú a.