Okwu mmalite nke duplex SS UNS31803

Duplex UNS S31803

Ozi teknụzụ Duplex UNS S31803

Nchịkọta

Duplex bụ austenitic ferritic Iron Chromium-Nickel alloy yana mgbakwunye Molybdenim. Ọ nwere ezigbo iguzogide pitting, ike dị elu na nguzogide nrụgide nrụgide corrosion na-adaba na okpomọkụ na-agafeghị oke na nke austenitic igwe anaghị agba nchara.

Duplex bụ ihe nwere oke nhata nke austenite na ferrite. Ndị a na-ejikọta ezigbo nguzogide corrosion na ike dị elu. Ngwongwo igwe dị ihe dị ka okpukpu abụọ nke igwe austenitic dị iche iche yana iguzogide nrụgide corrosion cracking dị elu karịa ụdị 316 igwe anaghị agba nchara na ngwọta chloride. Ihe duplex nwere mgbanwe ductile / kenkuwa na ihe dịka -50 Celsius. A na-amachikarị iji okpomọkụ dị elu na oke okpomọkụ nke 300 Celsius maka iji ya eme ihe ruo mgbe ebighị ebi n'ihi mgbakasị ahụ.

Uru

Enwere ọtụtụ uru Duplex gụnyere:

Ike dị elu

Nnukwu iguzogide pitting, nguzogide corrosion crevice

Nnukwu iguzogide nrụgide corrosion cracking, ike ọgwụgwụ na ozize

Ọkachamara nguzogide corrosion corrosion chloride

Mgbasa ọkụ dị ala na ihe nrụpụta ọkụ dị elu karịa nchara Austenitic

Nnukwu ike absorption

Ezi arụmọrụ na weldability

Ngwa

Pipe - ASTM A790

Usoro nrụpụta nwere ike ịbụ enweghị nkebi ma ọ bụ ịgbado ọkụ akpaka, na-enweghị mgbakwunye nke metal filler. Ọkụ nwere ike ịdị ọkụ ma ọ bụ oyi gwụ mana a ga-edozirịrị ya mgbe ọ bụla n'ọnọdụ okpomọkụ a na-agwọ ya.

WELD - ASTM A815

Klas a na-ekpuchi klas nke WP, nke nwere ụdị 4 ma mezuo ihe ANSI B16.9 chọrọ. Ogo nrụgide bụ otu ndakọrịta nke ọkpọkọ dabara.

Otu :-

WP-S: Mwube enweghị nkebi

WP-W : Ihe owuwu welded ebe a na-esepụta welds ihe owuwu

WP-WX: Ihe owuwu welded ebe a na-esepụta weld niile

WP-WU : welded Construction ebe a na-anwale welds Ultrasonically.

Flanges ASTM A182

Nkọwa ASTM na-achịkwa akụrụngwa akwadoro nke enwere ike isi na ya mepụta flanges. Ọkpụkpọ ọkpọkọ arụrụ ma ọ bụ akpọrepu, ihe arụrụ arụ na valvụ maka ngwa okpomọkụ dị elu.

Valves ASTM A890 Ọkwa 5A

Nkọwa ọkọlọtọ maka nkedo, lron-Chromium-Nickel-Molybdenum Corrosion-

Na-eguzogide, Duplex (Austenitic/Ferritic) maka Ngwa General'

Nkọwa nka nka

NKWUKWU kemịkalụ (Ụkpụrụ niile dị oke ma ọbụghị ma ekwuputara ya ọzọ)

AKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKWỤKW ahụ

*(NACE MR-01-75 ntughari ohuru nwere ike igbochi ike na ụfọdụ ngwa)

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

Ọgwụgwọ okpomọkụ: AKWỤKWỌ Ngwọta NA 1020 DEG C - 1100 DEG C Water QuENCH

Akara ule nhata +