ʻO 2205 duplex stainless steel he duplex stainless steel i haku ʻia me 21% chromium, 2.5% molybdenum a me 4.5% nickel-nitrogen alloy. ʻO ka ferrite a me ka austenite hale i kēlā me kēia helu no kahi o 50%. Loaʻa iā ia ka ikaika kiʻekiʻe, ka paʻakikī o ka hopena maikaʻi a me ka maikaʻi holoʻokoʻa a me ke koʻikoʻi kūloko. ʻO ka ikaika hoʻohua o 2205 duplex stainless steel he pālua ia oaustenitic stainless steel. ʻO kēia hiʻohiʻona e hiki ai i nā mea hoʻolālā ke hoʻemi i ke kaumaha i ka wā e hoʻolālā ai i nā huahana, e hoʻolilo i kēia huila i ʻoi aku ka maikaʻi ma mua o 316 a me 317L. He kūpono kēia huila no ka pae wela o -50°F/+600°F. No nā noi ma waho aʻe o kēia pae wela, hiki ke noʻonoʻo ʻia kēia huila, akā aia kekahi mau palena, ʻoi loa ke hoʻohana ʻia i nā hale welded.
Huina Kemika:
- C: ≤ 0.03
- Mn: ≤ 2.00
- Si: ≤ 1.00
- P: ≤ 0.03
- S: ≤ 0.02
- Cr: 22.0～23.0
- Ni: 4.5～6.5
- Mo: 3.0～3.5
- N: 0.14～0.20
Nā Papa Kaulike:
2205 kila duplex, UNS S32205, NAS 329J3L, F51, W.-Nr. 1.4462, 00Cr22Ni5Mo3N
Nā kūlana hoʻokō:
ASTM A240/ASME SA-240, ASTM A276, ASTM A182/ASME SA-182, ASTM A312/ASMES A312
Nā waiwai kino:
- Māmā: 7.98 g/cm3
- Ka helu hehee: 1300 - 1390 ℃
Hoʻoponopono wela:
E hoʻopaʻa i ka mahana ma waena o 1000 - 1050 ℃ no 1-2 mau hola, wikiwiki ka ea a i ʻole ka hoʻoluʻu wai.
Nā Pono Mechanical:
- Ikaika U'i: σb≥795Mpa
- Ka ikaika o ka hua: σb≥550Mpa
- Elongation: δ≥15%
- Paʻakiki ≤310 (HB)
Kū'ē a me ka hoʻohana ʻana i ke kaiapuni:
Ke hoʻohālikelike ʻia me 316L a me 317L austenitic stainless steel, 2205 duplex stainless steel i ʻoi aku ka maikaʻi o ka hoʻokō ʻana i ka pale ʻana i ka pitting corrosion a me ka crevice corrosion. Loaʻa iā ia ke kūpaʻa corrosion kiʻekiʻe. Hoʻohālikelike ʻia me austenitic, ʻo ia ʻO ka coefficient o ka hoʻonui ʻana i ka wela ka haʻahaʻa a ʻoi aku ka kiʻekiʻe o ka conductivity thermal. Hoʻohālikelike ʻia me ka austenitic stainless steel, duplex stainless steel 2205 alloy he pālua kona ikaika compressive. Hoʻohālikelike ʻia me 316L a me 317L, hiki i ka mea hoʻolālā ke hoʻemi i kona kaumaha. He kūpono loa ka Alloy 2205 no ka pae wela o -50°F/+600°F. Ma lalo o nā palena koʻikoʻi (ʻoi loa no nā hale welded), hiki ke hoʻohana ʻia i nā haʻahaʻa haʻahaʻa.
Nā noi o 2205 DSS Castings:
- ʻO nā meaʻoihanaʻaila a me ke kinoea;
- ʻO nā paepae waho, nā mea hoʻololi wela, nā mea hana ma lalo o ka wai, nā mea hana ahi;
- ʻoihana hana kemika, ʻoihana a me ka ʻoihana paipu;
- Desalination, nā mea hana RO kiʻekiʻe a me nā paipu submarine;
- ʻO ka ʻoihana ikehu e like me ka mana mea kanu desulfurization a me ka denitration ʻōnaehana FGD, ʻōnaehana scrubbing ʻoihana, hale kiaʻi absorption;
- Nā ʻāpana mīkini (ikaika kiʻekiʻe, kūpaʻa i ka corrosion, nā ʻāpana pale ʻaʻahu)
Ka manawa hoʻouna: ʻAukake-18-2021