Austenitic stainless steel ahorow pii wɔ hɔ, 304 stainless steel yɛ austenitic stainless steel bi ankasa. Enti ɛnyɛ hwee sɛ ɛyɛ papa anaa bɔne. Hangao Tech (seko mfiri) . Stainless Steel Industrial Precision Pipe Production Line Duct Machine no betumi adi nneɛma ahorow a ɛnyɛ den a wɔde yɛ nneɛma te sɛ austenite, ferrite, 2205 steel, ne nea ɛkeka ho ho dwuma ntɛm ara Sɛ wowɔ nhyehyɛe ahwehwɛde soronko, te sɛ weld leveling a ɛwɔ mu, in-line bright solid solution, anaasɛ ahwehwɛde a ɛkorɔn a ɛfa weld processing ho a, yɛn amanne kwan so adeyɛ kwan no betumi adi wɔn nyinaa ho dwuma.
Austenitic stainless steels ne stainless steel abusua a wɔtaa de di dwuma a nnansa yi ara gua so kyɛfa yɛ 75%. Sɛnea edin no kyerɛ no, microstructure no yɛ austenite phase. Wɔ 300 series no mu no, chromium a ɛwɔ mu no yɛ 16%-22% na nickel a ɛwɔ mu no yɛ 8%-14%. Bere a nickel ma ductility kɔ soro no, ɛyɛ mmerɛw sɛ aguade bo a ɛkɔ soro no yɛ nea ɛyɛ mmerɛw. Eduu dɔla 50,000 wɔ ton biako mu wɔ afe 2007 mu, nanso mprempren ɛrebɛn dɔla 10,000 wɔ tɔn biara mu. Wɔyɛɛ 200 series no de tuaa nickel bo a ɛkɔ soro no so ka, na wɔde manganese ne nitrogen sii nikel a ɛwɔ mu no bi ananmu.
Austenitic dade a ɛnyɛ den a wɔtaa de di dwuma sen biara 304 dade a ɛnyɛ den .
Nea ɛwom no kura chromium 18% ne nickel 8%, na ɛtɔ da bi a wɔfrɛ no 18-8 stainless steel. Nanso, wɔmfa saa din yi nkyerɛ sɛ wɔmfa nni dwuma wɔ ɔkwan a ɛkɔ akyiri so efisɛ abodwokyɛre a ɛwɔ mmeae a wɔma ho kwan ma saa nneɛma yi ne nkyerɛwde afoforo hyia no. Sɛ nhwɛso no, SS31 wɔ chromium ne nickel a ɛte saa ara, nanso ɛwɔ bɛyɛ 2% molybdenum nso ma corrosion resistance foforo. Bere a welding anaasɛ annealing onwini no, chromium carbide ma ɛyɛ ntɛmntɛm wɔ microstructure aburow hye so. Wɔ saa mmeae yi no, Chromium de carbides ma wɔ dade a atwa ho ahyia ho. Wɔde austenitic stainless steels a carbon a ɛba fam no kyerɛ no, wɔde suffix L, te sɛ 304L anaa 316L kyerɛ. Ɔkwan foforo a wobɛfa so asiw nkate ano ne sɛ wode titanium anaa niobium bɛka ho, a ɛkyekyere carbon kɛse.
Austenitic stainless dade nyɛ ɔhyew a wɔde sa .
Ebinom a 200, 300, 400 series stainless dade yɛ adwuma den ma ɛyɛ den wɔ bere a wɔreyɛ no, nanso austenitic stainless dade yɛ ntɛmntɛm na ɛnyɛ den sɛ mfiri. Bere a austenitic stainless steels taa nya corrosion resistance a eye sen biara, formability ne weldability no, nsakrae a ɛba wɔ nickel bo mu no ama nnwumakuw binom ayɛ nsakrae wɔ mfiridwuma mu de agye ferritic alloys a wɔyɛ no.
Wɔ ɔhyew a ɛkɔ soro mu, te sɛ mframa a wɔtwe fi mu a ebetumi adu digrii Fahrenheit 1650 mu no, ferritic stainless steels wɔ tensile su a eye na ɛko tia ɔhyew mu ɔbrɛ. Wɔwɔ ɔhyew ntrɛwmu a ɛba fam ne ɔhyew a ɛkɔ soro sen austenitic stainless steels. ferritic stainless steels yɛ mmerɛw bere a ɔhyew no so tew no. Nsakraeɛ hyew no bɛyɛ digrii Fahrenheit 32, nanso egyina aduru a wɔde afra no so. Austenitic stainless steels nyɛ brittle wɔ ɔhyew a ɛba fam mu.
