He Kupu Whakataki mō te Kowiri tira 17-4ph

Ko te pereti maitai kore waikura 17-4 (630) he rauemi maitai kore waikura whakapakeke i hangaia ki te parahi-chromium hei whakamahi mō ngā tono e hiahia ana ki te kaha teitei me te ātete ki te waikura i te taumata waenga. Ko te kaha teitei
kia mau tonu te pāmahana ki te 600 nekehanga Fahrenheit (316 nekehanga)
Celsius).

Ngā Taonga Whānui

Ko te kowiri tira Koranu 17-4 PH he kowiri tira martensitic whakapakeketanga me ngā tāpiringa Cu me Nb/Cb. Ka whakakotahi te karaehe i te kaha teitei, te pakeke (tae atu ki te 572°F / 300°C), me te waikura.
te ātete

Raraunga Matū

Waro	0.07 mōrahi
Konupora	15 – 17.5
Parahi	3 – 5
Rino	Taurite
Manganēhi	1 te mōrahi
Nikara	3 – 5
Niobium	0.15 – 0.45
Niobium+Tantalum	0.15 – 0.45
Whēkau	0.04 mōrahi
Hiraka	1 te mōrahi
Whāwhā	0.03 mōrahi

Ātete ki te Waikura

He pai ake te tu atu o te Alloy 17-4 PH i ngā whakaeke waikura i ngā maitai kore waikura paerewa ka taea te whakapakeke, ā, he rite tonu ki te Alloy 304 i te nuinga o ngā rauemi.

Mena he tūponotanga pea o te pakaru o te waikura ahotea, me whiriwhiri ngā pāmahana koroheketanga teitei ake i te 1022°F (550°C), ko te mea pai ko te 1094°F (590°C). Ko te 1022°F (550°C) te pāmahana whakamahana tino pai i roto i te rauemi hauota.

Ko te 1094°F (590°C) te pāmahana whakamātao tino pai mō ngā pāpāho H2S.

Ka taea te pakaru, te pakaru rānei o te koranu mēnā ka noho ki te wai moana mō tētahi wā roa.

He ātete ki te waikura i roto i ētahi ahumahi matū, hinu, pepa, miraka me te tukatuka kai (he rite ki te karaehe 304L).

Ngā tono

· Te takutai moana (ngā pepa whakarewa, ngā papa waka herikopita, me ētahi atu)· Ahumahi kai· Ahumahi penupenu me te pepa· Rererangi (ngā mata o te tāpoi, me ētahi atu)· Ngā wāhanga miihini · Ngā oko para karihi

Ngā Paerewa

· ASTM A693 karaehe 630 (AMS 5604B) UNS S17400· EURONORM 1.4542 X5CrNiCuNb 16-4· AFNOR Z5 CNU 17-4PH· DIN 1.4542