Hoʻolauna o duplex SS UNS31803

Duplex UNS S31803

Duplex UNS S31803 ʻIke ʻenehana

Nānā nui

ʻO Duplex kahi austenitic ferritic Iron Chromium-Nickel alloy me ka hoʻohui Molybdenim. He kūpaʻa maikaʻi kona i ka lua, he ikaika tensile kiʻekiʻe a ʻoi aku ke kūʻē ʻana i ke koʻikoʻi ka pohā ʻana o ka corrosion ma nā mahana haʻahaʻa i nā mea kila austenitic maʻamau.

ʻO Duplex kahi mea i loaʻa ka nui like o ka austenite a me ka ferrite. Hoʻohui kēia mau mea i ka pale corrosion maikaʻi loa me ka ikaika kiʻekiʻe. ʻOi aku ka ʻoi aku o ka ʻoi aku o ke kila austenitic kūʻē i ke koʻikoʻi ma mua o ke kila kila 316 i loko o nā hāʻina chloride. Loaʻa i ka mea Duplex kahi hoʻololi ductile / brittle ma kahi o -50°C. Hoʻohana pinepine ʻia ka hoʻohana wela kiʻekiʻe i kahi mahana kiʻekiʻe o 300°C no ka hoʻohana mau ʻana ma muli o ka embrittlement.

Nā pōmaikaʻi

Nui nā pōmaikaʻi o Duplex me:

Ikaika Kiekie

Ke kū'ē kiʻekiʻe i ka lua, ke kū'ē i ka corrosion crevice

Kū'ē kiʻekiʻe i ke koʻikoʻi i ka haki ʻana i ka corrosion, luhi a me ka erosion

Kūʻē maikaʻi loa i ka chloride stress corrosion cracking

ʻO ka hoʻonui haʻahaʻa haʻahaʻa a ʻoi aku ka kiʻekiʻe o ka wela ma mua o nā kila Austenitic

Kiʻekiʻe ikehu absorption

Maikaʻi ka hana a me ka weldability

Nā noi

Paipu – ASTM A790

ʻO ke ʻano o ka hana ʻana hiki ke hoʻopaʻa ʻole ʻia a i ʻole ka hoʻohui ʻana i ka metala piha. Hiki ke wela a i ʻole ke anu ka paipu akā pono e hoʻolako mau ʻia ma ke ʻano mālama wela.

BUTT WELD – ASTM A815

Hoʻopili kēia papa i ka papa o WP, i hana ʻia i nā ʻāpana 4 a hoʻokō i nā koi o ANSI B16.9. ʻO nā helu kaomi ka like like o ka paipu like.

Māhele:-

WP-S : Hana ʻole ʻia

WP-W : Welded Construction kahi e hoʻopaʻa ʻia ai nā welds kūkulu ʻia

WP-WX : Welded Construction kahi i hoʻopaʻa 'ia ai nā welds a pau

WP-WU : Welded Construction kahi i ho'āʻo Ultrasonically nā welds.

Nā Flange ASTM A182

Hoʻoponopono nā kikoʻī ʻo ASTM i nā mea maka i ʻāpono ʻia mai kahi e hana ʻia ai nā flanges. ʻO nā flanges paipu kila i hoʻopaʻa ʻia a ʻōwili ʻia paha, nā mea pono a me nā kiwi no nā noi wela kiʻekiʻe.

Nā pāpaʻi ASTM A890 Papa 5A

Hōʻike maʻamau no nā Castings, lron-Chromium-Nickel-Molybdenum Corrosion-

Kū'ē, Duplex (Austenitic/Ferritic) no ka noi maʻamau'

Nā kikoʻī ʻenehana

CHEMICAL COMPOSITION (ʻOi aku ka nui o nā waiwai a pau ke ʻole ka ʻōlelo ʻē aʻe)

NA WAIWAI MEKANIKAL

*(NACE MR-01-75 hōʻano hou hiki ke kaupalena i ka paʻakikī i kekahi mau noi)

PREn (PITTING RESISTANCE EQUIVALENT) – (%Cr) + (3.3 x %Mo) + (16 x %N)

HANA WELA: HANA HANA I KA 1020 DEG C – 1100 DEG C WATER QUENCH

NA PAPA KULA +