904L|N08904 Alloy Steel efere

Nkọwa dị mkpirikpi:

904L austenitic igwe anaghị agba nchara bụ nke obere carbon, nickel dị elu, molybdenum austenitic igwe anaghị agba nchara nwere nguzogide acid.904L austenitic igwe anaghị agba nchara nwere magburu onwe activation passivation mgbanwe ikike, magburu onwe corrosion eguzogide, ezi corrosion eguzogide na-abụghị oxidizing acid dị ka sulfuric acid, acetic acid, formic acid, na phosphoric acid, ezi iguzogide pitting corrosion na-anọpụ iche chloride ion media, na ezi mma. iguzogide corrosion crevice na corrosion nrụgide.Kwesịrị ekwesị maka ọkwa dị iche iche nke sulfuric acid n'okpuru 70 ℃, ọ nwere ezigbo nguzogide corrosion na ntinye ọ bụla na okpomọkụ nke acetic acid na ngwakọta nke formic acid na acetic acid n'okpuru nrụgide nkịtị.


Nkọwa ngwaahịa

Mkpado ngwaahịa

Ngosipụta ngwaahịa

904L-2
904L-4
904L-3

904L austenitic igwe anaghị agba nchara bụ nke obere carbon, nickel dị elu, molybdenum austenitic igwe anaghị agba nchara nwere nguzogide acid.904L austenitic igwe anaghị agba nchara nwere magburu onwe activation passivation mgbanwe ikike, magburu onwe corrosion eguzogide, ezi corrosion eguzogide na-abụghị oxidizing acid dị ka sulfuric acid, acetic acid, formic acid, na phosphoric acid, ezi iguzogide pitting corrosion na-anọpụ iche chloride ion media, na ezi mma. iguzogide corrosion crevice na corrosion nrụgide.Kwesịrị ekwesị maka ọkwa dị iche iche nke sulfuric acid n'okpuru 70 ℃, ọ nwere ezigbo nguzogide corrosion na ntinye ọ bụla na okpomọkụ nke acetic acid na ngwakọta nke formic acid na acetic acid n'okpuru nrụgide nkịtị.

Austenitic igwe anaghị agba nchara 904L bụ nnukwu alloy austenitic igwe anaghị agba nchara nwere obere carbon ọdịnaya.Ọ nwere ezigbo nguzogide corrosion na sulfuric acid na-agbaze ma emebere ya maka gburugburu nwere ọnọdụ corrosion siri ike.Ọ nwere ọdịnaya chromium dị elu yana ọdịnaya nickel zuru oke.Mgbakwunye nke ọla kọpa na-enye ya nguzogide acid siri ike, karịsịa nnukwu nguzogide chloride interstitial corrosion na nrụgide corrosion cracking.Ọ naghị adịkarị mfe na ntụpọ corrosion na mgbawa, yana nguzogide ya na-emebi corrosion dị mma karịa ọkwa nchara ndị ọzọ.Ọ nwere ezigbo machinability na weldability na enwere ike iji ya na arịa nrụgide.

Ụkpụrụ ndị isi

ASTM A240/ASME SA-240,ASTM A276,ASTM A182/ASME SA-182,ASTM A312/ASMES A312,ASTM B625/ASME B625,ASTM B673/ASME B673

904L, Al-904L, UNS N08904, SUS890L, F904L, W.-Nr.1.4539, NAS 255,00Cr20Ni25Mo4.5Cu

Ngwakọta kemịkalụ

C

Mn

Ni

Si

P

S

Cr

Cu

Mo

≤0.02

≤2.00

23.0 ~ 28.0

≤1.0

≤0.045

≤0.035

19.0–23

1.0-2.0

4.0-5.0

Njirimara anụ ahụ

Njupụta

Ebe mgbaze

8.06g / cm3

1300-1390 ℃

Ihe eji arụ ọrụ

Ike ọdụdọ

Mpụta Ike

Ogologo oge

Isi ike

σb≥490Mpa

σb≥215Mpa

≥35%

70-90 (HRB

Nguzogide corrosion

904L bụ obere carbon ọdịnaya, elu alloying austenitic igwe anaghị agba nchara e mere maka ajọ corrosive gburugburu.Ọ nwere nguzogide corrosion dị mma karịa 316L na 317L, ebe ọ na-edozi ọnụahịa na arụmọrụ, yana ọnụ ahịa dị elu.N'ihi mgbakwunye nke 1.5% ọla kọpa, ọ nwere ezigbo nguzogide corrosion maka ibelata acid dị ka sulfuric acid na phosphoric acid.Ọ nwekwara ezigbo nguzogide corrosion na corrosion nrụgide, pitting corrosion, na crevice corrosion nke ion chloride kpatara, ma nwee ezigbo nguzogide corrosion intergranular.Na sulfuric acid dị ọcha nke nwere oke ịta ahụhụ nke 0-98%, okpomọkụ ojiji nke 904L nwere ike iru ogo Celsius 40.Na phosphoric acid dị ọcha nke nwere oke ntinye nke 0-85%, nguzogide corrosion ya dị ezigbo mma.Ihe adịghị ọcha nwere mmetụta siri ike na nguzogide corrosion nke phosphoric acid nke ụlọ ọrụ mmepụta ihe nke teknụzụ usoro mmiri na-emepụta.N'ime ụdị phosphoric acid niile, 904L nwere nguzogide corrosion ka mma karịa igwe anaghị agba nchara.N'ime nitric acid oxidizing nke ukwuu, 904L nwere nguzogide corrosion dị ala ma e jiri ya tụnyere ọkwa ọla edo dị elu na-enweghị molybdenum.Na hydrochloric acid, ojiji nke 904L na-ejedebe na obere mkpokọta 1-2%.N'ime oke ịta ahụhụ a.Nguzogide corrosion nke 904L dị mma karịa nke igwe anaghị agba nchara.904L ígwè nwere nnukwu iguzogide pitting corrosion.Ọ na-eguzogide corrosion crevice na ngwọta chloride.Ike dịkwa mma nke ukwuu.Ọdịnaya nickel dị elu nke 904L na-ebelata ọnụ ọgụgụ corrosion na olulu na crevices.Igwe anaghị agba nchara austenitic nkịtị nwere ike ịdị na-enwe mmetụta maka nrụrụ nrụgide na gburugburu ebe nwere chloride na okpomọkụ karịrị ogo Celsius 60.Site n'ịba ụba ọdịnaya nickel nke igwe anaghị agba nchara, enwere ike ibelata nghọta a.N'ihi ọdịnaya nickel dị elu, 904L na-egosipụta nnukwu nguzogide nrụgide corrosion cracking na ngwọta chloride, ngwọta hydroxide na-etinye uche na gburugburu ebe obibi jupụtara na hydrogen sulfide.

Ngwa

Mmanụ na mmanụ mmanụ, dị ka reactors na petrochemical akụrụngwa, nchekwa na njem akụrụngwa maka sulfuric acid, dị ka okpomọkụ Exchangers, ike osisi flue gas desulfurization ngwaọrụ, tumadi na-eji na ụlọ elu ahụ, flue, ụzọ ogwe, esịtidem components, ịgba usoro, wdg nke ụlọ elu absorption, scrubbers na Fans na usoro ọgwụgwọ organic acid, ngwaọrụ ọgwụgwọ mmiri mmiri, ndị na-ekpo ọkụ mmiri mmiri, ngwá ọrụ ụlọ ọrụ na-emepụta akwụkwọ, sulfuric acid na ngwa nitric acid, mmepụta acid, wdg ụlọ ọrụ ọgwụ na ihe ndị ọzọ kemịkalụ, ụgbọ mmiri nrụgide, akụrụngwa nri. , Ụlọ ọrụ na-emepụta ọgwụ: centrifuges, reactors, wdg, nri osisi: tankị soy sauce, mmanya na-esi nri, tankị nnu, ngwá ọrụ na uwe ejiji, 904L bụ ọkwa ígwè dabara adaba maka itughari sulfuric acid siri ike na-emebi emebi.

Ngwaahịa na-eweta

Efere, warara, mmanya, waya, forging, ezigbo mkpanaka, ịgbado ọkụ ihe, flange, wdg, nwere ike hazie dị ka eserese si dị.


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