Ko te 347 he kowiri tira austenitic kei roto i te niobium, ko te 347H tana putanga waro teitei. Mo te hanganga,347ka kitea he koranu i ahu mai i te taapiri niobium ki te turanga o te 304 kowiri tira. Ko te Niobium he huānga whenua onge he rite te mahi ki te titanium. Ka honoa ki te koranu, ka taea e ia te whakamahine i te hanganga witi, te aukati i te waikura intergranular, me te whakatairanga i te pakeke pakeke.
Ⅰ. He rite ki nga paerewa a-motu
Haina | GBIT 20878-2007 | 06Cr18Ni11Nb | 07Cr18Ni11Nb(1Cr19Ni11Nb) |
US | ASTM A240-15a | S34700,347 | S34709,347H |
JIS | J1S G 4304:2005 | SUS 347 | - |
DIN | EN 10088-1-2005 | X6CrNiNb18-10 1.4550 | X7CrNiNb18-10 1.4912 |
Ⅱ. WHAKAMAHI KAUPAPA O S34700 Pae kowiri tira
Kōeke | C | Mn | Si | S | P | Fe | Ni | Cr |
347 | 0.08 te teitei | 2.00max | 1.0 mōrahi | 0.030mrahi | 0.045 mōrahi | 62.74 min | 9-12max | 17.00-19.00 |
347H | 0.04 – 0.10 | 2.0 mōrahi | 1.0 mōrahi | 0.030 te teitei | 0.045 mōrahi | 63.72 min | 9-12max | 17.00 – 19.00 |
Ⅲ.347 347H Pae kowiri tira Nga Tikanga Miihini
Kiato | Te Whakarewarewa | Te Kaha Toka (MPa) min | Kaha Tuku 0.2% Tohu (MPa) min | Te whakaroa (% i te 50mm) min |
8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 |
Ⅳ.Ngā taonga
①He pai te parenga waikura e rite ana ki te 304 kowiri tira.
② I waenga i te 427 ~ 816 ℃, ka taea e ia te aukati i te hanganga o te chromium carbide, te aukati i te whakamohiotanga, me te pai o te aukati ki te waikura intergranular.
③Kei a ia tonu te atete ngokingoki i roto i te taiao oxidizing kaha ki te pāmahana teitei o 816 ℃.
④Easy ki te whakawhānui me te hanga, ngāwari ki te weld.
⑤He pai te pakari o te pāmahana iti.
Ⅴ. Nga wa tono
Ko te mahinga teitei o te pāmahana o347&347Hhe pai ake te kowiri tira i te 304 me te 321. Kei te whakamahia nuitia i roto i te rererangi, te petrochemical, te kai, te pepa me etahi atu ahumahi, penei i nga putorino matua me nga putorino manga o nga miihini rererangi, nga putorino hau wera o nga miihini turbine, me nga kawenga iti. me te mahana kia kaua e neke ake i te 850°C. Nga waahanga e mahi ana i raro i nga tikanga, etc.
![https://www.sakysteel.com/347-347h-stainless-steel-bar.html](https://www.sakysteel.com/uploads/2205-round-bar_副本.jpg)
![https://www.sakysteel.com/347-347h-stainless-steel-bar.html](https://www.sakysteel.com/uploads/347-347H-stainless-steel-bar.jpg)
Te wa tuku: Mei-11-2024