347 ke tšepe ea sebano se nang le monko o se nang litsietsi, athe 347h ke phetolelo ea eona e phahameng ea carbon. Mabapi le sebopeho,347e ka bonoa e le alloy e tsoang ho kenyelletsa Niobium ho isa bofelong ba tšepe e nang le letsoai. Niobium ke ntho ea lefats'e e sa tloaelehang e sebetsang ka mokhoa o ts'oanang le titanium. Ha e kenyellelitsoe ho alloy, e ka ntlafatsa sebopeho sa lijo-thollo, nka mokhoa oa ho makhelo, le ho khothaletsa lilemo ho ba lilemo ho thatafatsa.
Ⅰ.Cordondtion ho litekanyetso tsa naha
| China | Gbit 20878-2007 | 060111nb | 07311nb (1CR19ni11nb) |
| US | Asst A240-15A | S34700,347 | S34709,347h |
| Jis | J1s g 4304: 2005 | Time 397 | - |
| DI | En 10088-1-2005 | X6crnb18-10 1.4550 | X7crnb18-10 1.4912 |
Ⅱ.Chemical sebopeho sa bar ea s34700 steel
| Keletso | C | Mn | Si | S | P | Fe | Ni | Cr |
| 347 | 0.08 max | 2.00Max | 1.0 max | 0.030Max | 0.045 max | 62.74 min | 9-12max | 17.00-19.00 |
| 347H | 0.04 - 0.10 | 2.0 Max | 1.0 max | 0.030 max | 0.045 max | 63.72 min | 9-12max | 17.00 - 19.00 |
Ⅲ.347 347H 347H
| Letsoalo | Ntlha ea ho qhibiliha | Matla a Tontsile (MPA) min | Ho hlahisa bopaki ba 0,2% (MPA) min | Emeteation (% ho 50mm) min |
| 8.0 g / cm3 | 1454 ° C (2650 ° F) | PSI - 75000, MPA - 515 | PSI - 30000, MPA - 205 | 40 |
Thepa ea mofuta oa ⅳ.mate
Ho hatelloa ha thepa ea boea bo lekanang le tšepe e nang le letsoai la 304.
② Patong pakeng tsa 427 ~ 816 ℃, e ka thibela sebopeho sa choroum carbide ea chromium, hanela tlhahiso, 'me e hana hantle ho moferefere o kopaneng.
③it e ntse e na le khanyetso e itseng ea kelello tikolohong e matla ea oxidizing e nang le mocheso o phahameng oa 816 ℃.
④easy ho atolosa le ho theha, ho bonolo ho e sebelisa.
⑤good e tlase ea mocheso o tlase.
Maemo a letsatsi
Ts'ebetso ea mocheso o phahameng oa347 & 347HTšepe e se nang thuso e molemo ho feta ea 304 le 321. E sebelisoa haholo ka lifofane, tse kang liphaephe la lifofane tsa lifofane, 'me ho meroalo e nyane mme mocheso o sa fetang 850 ° C. Likarolo tse sebetsang tlasa maemo, jj.
Nako ea poso: Mots'eanong-11-2024