347 kahi niobium-nona nā mea kila meaʻala,ʻoiaiʻo 347th konaʻano kiʻekiʻe. Ma nā'ōlelo kiko'ī,347hiki keʻikeʻia he alana i loaʻa mai i ka hoʻohuiʻana i ka nidium i ke kumu o ka waihona o 304. ʻO Nioibium kahi mea e pili ana i ka Honua I ka wā i hoʻohuiʻia i ka alloy, hiki iā ia ke pale i ka hoʻonohonoho grain, pale i ka corroshion intergranur, a hoʻolaha i ka paʻakikī o ka makahiki.
Ⅰ.corresponding i nā kūlana aupuni
| Kina | Gbit 20878-2007 | 06cr18ni11nb | 07Cr18ni11nb (1cr19ni11nb) |
| US | Astm A240-15A | S34700,347 | S34709,347h |
| JIS | J1S G 4304: 2005 | Sus 347 | - |
| Dinal | En 10088-1-2005 | X6crninb18-10 1.4550 | X7crninb18-10 1.4912 |
Ⅱ.CEmical Composition o S34700ʻO Steel Get Steel Bar
| Kumu | C | Mn | Si | S | P | Fe | Ni | Cr |
| 347 | 0,000 Maku | 2.00Max | 1.0 Max | Hola LIKE | Poloka 0.04 0 | 62.74 min | 9-12Max | 17.00-19.00 |
| 347h | 0,04 - 0.10 | 2.0 Max | 1.0 Max | 0 0 maluna | Poloka 0.04 0 | 63.72 min | 9-12Max | 17.00 - 19.00 |
Ⅲ.3477 347h stainless ceel bar mechanication
| Huakai | Malting Point | Ikaika ikaika (MPA) min | Hāʻawi i ka ikaika 0.2% hōʻoia (MPA) min | Elongation (% ma 50mm) min |
| 8.0 g / cm3 | 1454 ° C (2650 ° F) | Psi - 75000, MPA - 515 | Pti - 30000, MPA - 205 | 40 |
Ⅳ.Maile waiwai
①Excellent corrosion coristion i hoʻohālikelikeʻia i ka mea kila 304.
② Ma waena o 427 ~ 816 ℃, hiki iā ia ke hoʻohālikelike i keʻano o ka cromium carbide, pale aku i keʻano o ka corrosior.
③I mau nō kahi pale creep i loko o kahi o ka oxidizing ikaika me keʻano kiʻekiʻe o 816 ℃.
④EYY e hoʻolōʻihi a me keʻano, maʻalahi i ka weld.
⑤god haʻahaʻa haʻahaʻa.
Ⅴ.Application mau manawa
ʻO ka hana kiʻekiʻe o keʻano kiʻekiʻe347 & 347hʻoi aku ka maikaʻi o nā kila stienless ma mua o ka 304 a me 321. Ua hoʻohana nuiʻia i nā pipes o nā mokulele a me nā welaʻaʻole iʻoi aku ma mua o 850 ° C. Nā'āpana e hana ma lalo o nā kūlana, etc.
POST manawa: Mei-11-2024