347/347H Ke kila kila

ʻO Alloy 347 he kila kaulike, austenitic, chromium i loaʻa i ka columbium e noʻonoʻo ana i ka hopena o ka ua carbide, a no laila ka corrosion intergranular. Hoʻohālikelike ʻia ka Alloy 347 e ka piʻi ʻana o ka chromium a me ka tantalum a hāʻawi i nā waiwai ʻoi aʻe ke kolo a me ke kaumaha ma mua o ka alloy 304 a me 304L, hiki ke hoʻohana ʻia no ka hoʻolaha ʻana kahi e hopohopo ai ka sensitization a me ka intergranular corrosion. ʻOi aku ka maikaʻi ma mua o ka huila 321. ʻO Alloy 347H ka ʻano hui kalapona kiʻekiʻe o Alloy 347 a hōʻike i ka mea wela kiʻekiʻe a me nā waiwai kolo.
Nā hiʻohiʻona

• ʻOi aku ka nui o ke koʻikoʻi kolo a me nā waiwai rupture ke hoʻohālikelike ʻia me 304
• Kūpono no ka lawelawe wela wela
• E lanakila ana i ka sensitization a me nā pilikia corrosion intergranular
• Hiki ke hoʻohana i nā noi wela kiʻekiʻe
• Ma muli o ka hoʻokūpaʻa ʻana o ka mea i hāʻawi ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion ke hoʻohālikelike ʻia me 304 / 304L

• Ka Hana Kemika
• ʻO nā lako hana ʻai a me ka mālama ʻana
• ʻO ka hui hoʻoheheʻe ʻana i ka wai hoʻomaʻemaʻe ʻana i ka wai, nā ʻāpana polythionic acid
• Hana Lapaʻau
• ʻO nā mea hoʻolaʻa wela wela

ʻO Alloy 347 stainless steel plate e hōʻike ana i ke kūpaʻa corrosion maʻamau e like me 304. Ua hana ʻia no ka hoʻohana ʻana i ka chromium carbide precipitation scope e 800 - 1500 ° F (427 - 816 ° C) kahi i hoʻopaʻa ʻia ai nā alloys ʻole e like me 304 i ka intergranular. hoouka kaua. Ma kēia ʻano wela, ʻoi aku ka maikaʻi o ka pale ʻana i ka corrosion o Alloy 347 stainless steel plate ma mua o Alloy 321 stainless steel plate. ʻOi aku ka maikaʻi o ka Alloy 347 ma mua o ka Alloy 321 i nā kūlana hoʻokahe ikaika a hiki i 1500°F (816°C). Hiki ke hoʻohana ʻia ka alloy ma ke ʻano he ʻāpana o nā hopena nitric; ka hapa nui o ka waiʻona organik i hoʻoheheʻe ʻia ma nā mahana haʻahaʻa a i loko o ka waika phosphoric maʻemaʻe ma nā haʻahaʻa haʻahaʻa a hiki i ka 10% nā hopena i hoʻoheheʻe ʻia i nā wela kiʻekiʻe. ʻO Alloy 347 pā kila kila ke kūʻē i ka polythionic acid stress corrosion ma ka lawelawe hydrocarbon. Hiki ke hoʻohana ʻia i loko o ka chloride a i ʻole ka fluoride free caustic solutions i nā mahana haʻahaʻa. ʻAʻole hana maikaʻi ka pā kila kuhili ʻole Alloy 347 i loko o nā hāʻina chloride, ʻoiai ma nā ʻano liʻiliʻi, a i ʻole i ka sulfuric acid.