Igwe anaghị agba nchara Pụrụiche
0102030405
NKWUKWU kemikal
Oghere | % | C | Na | Mn | P | S | N'ime | Cr | Ya na | Nb | Al |
17-4PH | MIN | - | - | - | - | - | 3.0 | 15.0 | 3.0 | 0.15 | - |
MAX | 0.07 | 1.0 | 1.0 | 0.04 | 0.03 | 5.0 | 17.5 | 5.0 | 0.45 | - | |
17-7PH | MIN | - | - | - | - | - | 6.5 | 16.0 | - | - | 0.75 |
MAX | 0.09 | 1.0 | 1.0 | 0.04 | 0.03 | 7.75 | 18.0 | - | - | 1.5 |
Njirimara anụ ahụ
Nlereanya | 17-4PH | 17-7PH |
Njupụta | 7.85g / cm3 | 7.85g / cm3 |
Ebe mgbaze | 1404-1440 ℃ | 1404-1440 ℃ |
Njirimara ngwaahịa
17-4PH bụ chromium-nickel-ọla kọpa mmiri ozuzo siri ike martensitic igwe anaghị agba nchara. A na-eji ọkwa nke igwe anaghị agba nchara site na ike dị elu, ike siri ike na nguzogide corrosion. A na-emeziwanye ihe eji arụ ọrụ site na ikpo ọkụ Ọgwụgwọ na ike mkpakọ ruru 1100-1300 MPa (160-190 ksi) nwere ike nweta. Enweghị ike iji ọkwa a na okpomọkụ karịrị 300°C (572°F) ma ọ bụ na okpomọkụ dị nnọọ ala. Ọ nwere ezigbo nguzogide corrosion na ikuku na itughari acid ma ọ bụ nnu, na nguzogide corrosion ya dị ka nke 304.
17-7PH bụ austenitic-martensitic mmiri ozuzo siri ike igwe anaghị agba nchara mepụtara na ndabere nke 18-8CrNi, nke a makwaara dị ka mgbanwe mgbanwe igwe anaghị agba nchara. 17-7PH igwe anaghị agba nchara bụ ejighị n'aka austenitic nzukọ mgbe siri ike ngwọta Ọgwụgwọ, na ezi plastic siri ike na machinability, mgbe tempering, nke mere na austenite ọdịda nke carbides mgbe mgbanwe nke mejupụtara, na mgbe ahụ site na martensitic mgbanwe usoro, ọtụtụ n'ime nzukọ a na-agbanwe n'ime a ala carbon tempering usoro na ezi siri ike. Mgbe iwere ọkụ gasịrị, ihe mejupụtara carbide nke austenite na-agbanwe, mgbe ahụ site na usoro mgbanwe nke martensitic, ọtụtụ n'ime nzukọ ahụ na-agbanwe ka ọ bụrụ obere carbon tempered martensite na ịdị mma siri ike, ma nwee ezigbo ihe eji arụ ọrụ na ọkara okpomọkụ. 17-7PH corrosion eguzogide dị mma karịa general martensitic igwe anaghị agba nchara.
