Kowiri tira 321,321H

Ko te Alloy 321 (UNS S32100) he kowiri tira austenitic titanium whakapumau me te pai o te aukati waikura whanui. Ko te 321H (UNS S 32109) te waro teitei ake (0.04 – 0.10) putanga o te 321 kowiri tira.

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Whakataki Hua Raraunga Hangarau

Whakataki Hua

Ko te Alloy 321 (UNS S32100) he kowiri tira austenitic titanium whakapumau me te pai o te aukati waikura whanui. He tino pai te aukati ki te waikura intergranular i muri i te rongonga ki te mahana i roto i te awhe rerenga chromium carbide o 800 – 1500°F (427 – 816°C). Ko te koranu he aukati i te waikura ki te 1500°F (816°C) he teitei ake te ngokingoki me te ahotea i te koranu 304 me te 304L. Kei a ia ano te pakari o te pāmahana iti.

Ko te Alloy 321H (UNS S 32109) te waro teitei (0.04 - 0.10) te putanga o te koranu. I whakawhanakehia mo te whakakaha ake i te aukati ngokingoki me te kaha ake i te pāmahana i runga ake i te 1000oF (537°C). I te nuinga o nga wa, ko te ihirangi waro o te pereti ka taea te tohu tohu takirua.

Ko te Alloy 321 e kore e taea te whakapakeke ma te wera wera, ma te mahi makariri anake. Ka taea te paihere me te tukatuka ma nga tikanga hanga toa.

Nga tono noa

Aerospace – he maha nga miihini piston
Tukatuka matū
Hononga Roha
Tukatuka Kai – taputapu me te rokiroki
Whakapai hinu – ratonga waikawa polythionic
Maimoatanga ururua – waiariki oxidizers

Raraunga Hangarau

Āhuatanga matū:

%	Cr	Ni	C	Si	Mn	P	S	N	Ti	Fe
321	min:17.0 teitei:19.0	min: 9.0 mōrahi:12.0	teitei:0.08	teitei:0.75	teitei:2.0	mōrahi:0.045	teitei:0.03	mōrahi:0.10	min:5*(C+N) teitei:0.70	Taurite
321H	min:17.0 teitei:19.0	min: 9.0 mōrahi:12.0	min:0.04 mōrahi:0.10	min:18.0 mōrahi:20.0	teitei:2.0	mōrahi:0.045	teitei:0.03	mōrahi:0.10	min:5*(C+N) teitei:0.70	Taurite

Ngā Āhuatanga Hangarau:

Kōeke	Te Kaha Toka ksi (min.)	Kaha Hua 0.2% Wāhikē ksi (min.)	Whakaroa - % roto 50 mm (min.)	Te pakeke (Brinell) MAX
321	75	30	40	217

Āhuatanga ā-tinana:

Denstiy lbm/in3	Tauwehe o	Roha Weariki (min/in)-°F	Waahanga Waahanga BTU/hr-ft-°F	BTU Wera Tauwhāiti/lbm -°F	Kōwae o te Elasticity (annealed)2-psi
i te 68 °F	i te 68 – 212°F	i te 68 – 1832°F	i te 200°F	i te 32 – 212°F	mānukanuka (E)
0.286	9.2	20.5	9.3	0.12	28 x 106