Kowiri tira kowiri tira takirua

Whakaahua Matua o te Kowiri tira takirua

Whakaahuatanga Poto:

Tau: ASTM A182 F53, A240, A276, A479, A789, A790, A815, A928, A988 SAE J405me ētahi atu

Paerewa: AISI, ASTM, DIN, EN, GB, ISO, JIS

Roa: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm, kia rite rānei ki te hiahia o te kiritaki

Whānui: 20mm – 2000mm, rānei kia rite ki te hiahia o te kiritaki

Matotoru: 0.1mm -200mm

Mata: 2B 2D BA (Kātahi te Whakamahana) Nama 1 Nama 3 Nama 4 Nama 5 Nama 8 8K HL (Raina Makawe)

Wā Utu: CIF CFR FOB EXW

Wā Tukunga: I roto i ngā rā 10-15 i muri i te whakaū i te ota

Wā utu: 30% TT hei moni tāpui me te toenga ki tētahi kape o te B/LLC rānei

Tukua mai he īmēra ki a mātou WhatsApp Amy@jindalaisteel.com

Taipitopito Hua

Ngā Tohu Hua

He Tirohanga Whānui mō te Kowiri tira takirua

He rerekē te maitai kore waikura takirua-rua i ngā momo takirua-rua paerewa nā ōna āhuatanga ātete-waikura kua tino pai ake. He rauemi tino whakarewa tēnei me te nui o ngā huānga ārai-waikura pērā i te chromium (Cr) me te molybdenum (Mo). Ko te momo maitai kore waikura takirua-rua tuatahi, S32750, kei roto ko te 28.0% chromium, 3.5% molybdenum, me te 8.0% nickel (Ni). Ka whakaratohia e ēnei wāhanga he ātete tino pai ki ngā matū waikura, tae atu ki ngā waikawa, ngā pūhaumāota, me ngā otinga caustic.

Ko te tikanga, ka hangaia ngā maitai kore waikura takirua-rua i runga i ngā painga kua whakapumautia o ngā momo takirua-rua me te pumau matū kua whakarei ake. Nā tēnei ka waiho hei momo pai mō te hanga i ngā wāhanga nui i roto i te rāngai matū hinu, pērā i ngā whakawhiti wera, ngā poiha, me ngā taputapu oko pēhanga.

Ngā Āhuatanga Ā-ringa o te Kowiri tira takirua

Ngā māka	ASTM A789 Tau S32520 I Whakamahanatia	ASTM A790 Tau S31803 I whakamahanahia	ASTM A790 Tau S32304 I Whakamahanatia	ASTM A815 Grade S32550 I whakamahanahia	ASTM A815 Tau S32205 I whakamahanahia
Tauwehenga Ātete	200 GPa	200 GPa	200 GPa	200 GPa	200 GPa
Te whakaroa	25%	25%	25%	15%	20%
Kaha Kume	770 MPa	620 MPa	600 MPa	800 MPa	655 MPa
Te pakeketanga o Brinell	310	290	290	302	290
Te Kaha o te Hua	550 MPa	450 MPa	400 MPa	550 MPa	450 MPa
Tauwehenga whānui wera	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K	1E-5 1/K
Te kaha wera motuhake	440 – 502 J/(kg·K)	440 – 502 J/(kg·K)	440 – 502 J/(kg·K)	440 – 502 J/(kg·K)	440 – 502 J/(kg·K)
Te Arahi Wera	13 – 30 W/(m·K)	13 – 30 W/(m·K)	13 – 30 W/(m·K)	13 – 30 W/(m·K)	13 – 30 W/(m·K)

Te Whakarōpūtanga o te Kowiri tira takirua

Ko te momo tuatahi he momo koranu iti, ko te tohu matua o UNS S32304 (23Cr-4Ni-0.1N). Kāore he molybdenum i roto i te maitai, ā, ko te uara PREN he 24-25. Ka taea te whakamahi hei whakakapi i te AISI304, i te 316 rānei hei ātete ki te waikura ahotea.

Ko te momo tuarua nō te momo koranu reo, ko te waitohu matua ko UNS S31803 (22Cr-5Ni-3Mo-0.15N), ko te uara PREN ko 32-33, ā, ko tōna ātete ki te waikura kei waenganui i te AISI 316L me te 6% Mo+N te maitai kore waikura austenitic.

Ko te momo tuatoru he momo koranu teitei, e 25% te Cr, te molybdenum me te hauota kei roto i te nuinga o te wā, ā, kei roto hoki i ētahi he parahi me te tungsten. Ko te paerewa UNSS32550 (25Cr-6Ni-3Mo-2Cu-0.2N), ko te uara PREN he 38-39, ā, he teitei ake te ātete waikura o tēnei momo maitai i tērā o te 22% Cr duplex stainless steel.

Ko te momo tuawhā he maitai kore waikura tino takirua, he nui te molybdenum me te hauota kei roto. Ko te taumata paerewa ko UNS S32750 (25Cr-7Ni-3.7Mo-0.3N), ā, kei roto hoki i ētahi he tungsten me te parahi. He nui ake te uara PREN i te 40, ka taea te whakamahi ki ngā āhuatanga reo uaua. He pai te ātete ki te waikura me ngā āhuatanga whānui miihini, ka taea te whakarite ki te maitai kore waikura tino austenitic.

Ngā Painga o te Kowiri tira takirua

E ai ki te kōrero i runga ake nei, he pai ake te mahi a Duplex i ngā momo maitai takitahi e kitea ana i roto i tōna hanganga iti. He pai ake te kī, ko te whakakotahitanga o ngā āhuatanga pai e puta mai ana i ngā huānga austenite me te ferrite ka whakarato i tētahi otinga whānui pai ake mō te maha o ngā āhuatanga whakaputa rerekē.

Ngā āhuatanga ārai-waikura – He nui te pānga o te molybdenum, te chromium, me te hauota ki te ātete ki te waikura o ngā koranu Duplex. He maha ngā koranu Duplex ka taea te rite me te hipa i te mahi ārai-waikura o ngā momo austenitic rongonui tae atu ki te 304 me te 316. He tino whai hua ēnei ki te ārai i te waikura kapiti me te waikura rua.

Ngatata waikura ahotea – ka puta te SSC hei hua o ētahi āhuatanga o te hau – ko te pāmahana me te haumākū ngā mea e tino kitea ana. Ka nui ake te raruraru i te ahotea kume. He tino ngāwari ngā momo austenitic noa ki te pakaru waikura ahotea – kāore te maitai kore waikura takirua.

Te Pakari – He pakari ake te takirua i ngā maitai ferritic – ahakoa i ngā pāmahana iti iho, engari kāore e rite ana te mahi ki ngā māka austenitic i tēnei āhuatanga.

Kaha – Ka taea e ngā konukōre takirua te kaha ake i ngā hanganga austenitic me te ferritic. Ko te tikanga o te kaha teitei ake ka noho pūmau tonu te konganuku ahakoa te matotoru iti, he mea tino nui tēnei mō te whakaiti i ngā taumata taumaha.