Super-Austenitic Stainless Steel muaj corrosion tsis siab dua cov qib duplex vim hais tias nws cov ntsiab lus alloy ntau dua. Nws muaj lub siab PREN (pitting tiv thaiv tus naj npawb tsis zoo) rau superior tsis kam mus chloride pitting thiab kev nyuab siab corrosion cracking.
Super austenitic stainless hlau txhais tias yog Cr-Ni stainless hlau nrog Pitting Resistance Tus Naj Npawb (Tus PREN = [Cr] +3.3 [Mo] + 16 [N]) ≥40%. Nws zoo dua ua rau chloride pitting thiab crevice corrosion tshaj Cr-Ni austenitic stainless hlau nrog Mo> 4% hauv corrosive media muaj Cl-
Cov qib kawm:
N08904 (904L), N08367 (6Mo), S31254 (6Mo), S30432, S31042
Specifications:
ASTM A312 Cov Qauv Txuj Ci rau Seamless, Welded, thiab Cov Txias Heav Txawv Ua Haujlwm Austenitic Cov Hlau Hlau
ASTM A269 Cov Qauv Uas Txuj Ci Rau Seamless thiab Welded Austenitic Stainless Hlau Tubing Rau Cov Kev Pabcuam General
ASTM B673, ASTM B674, ASTM B677, ASTM B675, ASTM B676, ASTM B690
Nta:
1.Cov tsis zoo rau chloride pitting, crevice corrosion hauv txhoj puab ib puag ncig
2. Nrhav khoom ua si nrog siab muaj zog
3.Xaiv ua haujlwm tau zoo
(Super) Duplex Stainless hlau
Duplex stainless hlau (DSS) yog tsim nrog cov qauv ntawm ob theem (α thiab γ) thiab muaj cov yam ntxwv ntawm cov ferritic thiab austenitic stainless hlau. Nws muaj corrosion kuj zoo thiab siab zog. Nws yog cawv nrog 18% -28% Cr thiab 3% -10% Ni nyob rau hauv cov mob uas tsis tshua muaj me ntsis. Ib co steels kuj muaj cov phom txhua yam xws li Mo, Cu, Nb, Ti thiab N, thiab lwm yam.
Sib piv nrog ferritic stainless, duplex stainless hlau muaj ntau dua plasticity, ductility thiab zoo intergranular corrosion kuj thiab weldability. Nws ua tib yam 475 ℃ brittleness nrog ferritic stainless thiab high thermal conductivity. Duplex tau nce kab ke zog, tsis ua hauj lwm nrog cov intergranular corrosion, kev nyuaj siab ntxhov plawv, corrosion nkees thiab txhab thiab corrosion piv nrog austenitic stainless hlau.
Cov qib kawm: S31803 / S32205, S32750, S32760, S31500, 32001, S32003, S32304
Specifications:
ASTM A789 Txheem Specification rau Seamless thiab Welded Ferritic / Austenitic Stainless Hlau Tubing Rau Cov Kev Pab Cuam
ASTM A790 (ASME SA790) Cov Qauv Txuj Ci rau Seamless thiab Welded Ferritic / Austenitic Cov Hlau Yeeb Nkab
ASTM A928 (ASME SA928) Cov Qauv Txuj rau Ferritic / Austenitic (Duplex) Stainless Hlau Yeeb Fais Fusion Welded nrog Ntxiv ntawm Cov Hlau
GB / T 21832-2008 Austenitic - Ferritic (duplex) qib stainless hlau welded leeg thiab kav dej
GB / T 21833-2008 Austenitic-Ferritic (duplex) qib stainlee steel seamless tubes thiab kav dej
Nta:
1. Ua zoo tsis haum rau qhov chaw thiab qhov chaw hauv corrosion, tshwj xeeb tshaj yog rau kev nyuaj siab ntxhov plawv, pitting corrosion, crevice corrosion, corrosion fatigue and abrasion & corrosion.
2. Weldability zoo
3.Cov khoom siv dag zog
4.Xaiv cov kev sib txhuam hauv corrosion intergranular
5.High-cost-effectiveness, lub neej ntev ntev
Kev txhim khu thiab kev kub hnyiab ua rau kub kub muaj xws li nickel hlau thiab ferrous alloy. Lawv muaj lub zog thiab muaj zog nyob hauv kev kub txog 650 ~ 1000 ℃ nrog kev kawm zoo.
Cov qib kawm:
N04400, N06600, N06601, N06617, N06625, N06690, N08800, N08810, N08811, N08825, N08020, N08367
N08028, N06985, N06022, N10276
Specifications:
ASME SB163 Txheem Txuj rau Seamless Xee Zis thiab Xaim Taub Txuj Qwj Txuj Xeeb Thiab Cov Kub Tsho Kub Tshav Kub Heev
ASME SB165 Txheem Txuj rau Nickel-Copper Alloy (UNS N04400) * Seamless Yeeb Thiab Tub
ASME SB167 Tus Qauv Kev Nthuav Lus rau Nickel-Chromium-hlau Alloys, Nickel-Chromium-Cobalt-Molybdenum Alloy (UNS N06617), thiab Nickel-Iron-Chromium-Tungsten Alloy (UNS N06674) Seamless Yeeb Thiab Tub
ASME SB407 Txheem Specification rau Nickel-Iron-Chromium Alloy Seamless Yeeb Thiab Tube
ASME SB423 Txuj Zeem Specific rau Nickel-Iron-Chromium-Molybdenum-Copper Alloy (UNS N08825, N08221, thiab N06845) Seamless Yeeb Thiab Tub
ASME SB444 Cov Qauv Txuj Ci rau Nickel-Chromium-Molybdenum-Columbium Alloys (UNS N06625 thiab UNS N06852) thiab Nickel-Chromium-Molybdenum-Silicon Alloy (UNS N06219) Yeeb Thiab Tub
ASME SB622 Txheem Specification rau Seamless Zauv thiab Nickel-Cobalt Alloy Yeeb Thiab Tub
ASME SB668 UNS N08028 Seamless Yeeb Thiab Cov Raj
ASME SB690 Txheem Txuj rau Hlau-Nickel-Chromium-Molybdenum Alloys (UNS N08366 thiab UNS N08367) Seamless Yeeb Thiab Tub
ASME SB729 Cov Qauv Txuj rau cov seamless UNS N08020, UNS N08026, thiab UNS N08024 nickel yeeb nkab yeeb nkab thiab Raj
Nta (nyob ntawm cov qib kawm):
1. Ua zoo tsis kam rau kev nyuab siab, pitting corrosion, Crevice corrosion thiab localized corrosion ntawm chav sov
2.Cov khoom ua tau zoo dua hauv chav sov
3. Cov dej khov kuj tsis zoo ntawm qhov kub thiab txias
4.Cov khoom siv dag zog rau qhov kub kom siab
Cim npe nrov: super austenitic stainless hlau, Suav teb, lwm tus neeg, manufacturers, nqe
