Nā kila Duplex 2205 • S31803/S32205 • 1.4462

2205 Nā Paipu Kila Kinoea Duplex. He kila duplex i hoʻohana nui ʻia e hoʻohui ana i ka ikaika kiʻekiʻe a me ke kūpaʻa i ka palaho i nā ʻano waikawa organik like ʻole, nā waikawa anorganic, nā wai hoʻoluʻu ikaika a me nā hui hydrous H2 S/NaCl. Me ka hui like o ka austenite a me ka ferrite, hāʻawi lākou i ka ikaika hua he 30% kiʻekiʻe a me nā ikaika tensile kiʻekiʻe iki aʻe ma mua o nā austenitics i loaʻa ka nitrogen. Ke kūpaʻa kiʻekiʻe i ka palaho maʻamau a me ke kikoʻī i ka palaho pitting a me ka crevice. ʻOi aku ka maikaʻi o ko lākou kūpaʻa i ka haki ʻana o ka stress-corrosion i nā chloride neutral ma mua o nā austenites. I nā wahi waikawa chloride kiʻekiʻe a i ʻole ka ʻawaʻawa kūpono kahi e ʻoi aku ai ka haki ʻana o ka hydrogen a i ʻole sulfide, pono e noʻonoʻo ʻia nā austenitics alloyed kiʻekiʻe. He kiʻekiʻe nā waiwai hopena a ʻokoʻa nā mahana hoʻololi o nā mea kumu ma kahi o - 50°C. Eia nō naʻe, ʻo ka hapa a me ke kuhikuhi ʻana o ka ferrite i nā welds a me nā mea kumu e hoʻopilikia nui i ka paʻakikī ma nā mahana subzero. ʻO ka ʻike ʻana i nā mahana waena a me ke kiʻekiʻe a me ka hoʻoluʻu wikiwiki ʻole e hoʻoulu ai i ka embrittlement.