Cov yam ntxwv ntawm cov xov xwm sib txawv thiab cov lus piav qhia ntawm cov khoom tsim nyog

Nitric Acid (HNO3)

Cov yam ntxwv dav dav:Nws yog oxidizing nruab nrab. Concentrated HNO3 feem ntau ua haujlwm ntawm qhov kub qis dua 40 ° C. Cov ntsiab lus xws li chromium (Cr) thiab silicon (Si) yog resistant rau oxidation, ua stainless hlau thiab lwm yam ntaub ntawv uas muaj Cr thiab Si zoo tagnrho rau tiv thaiv corrosion los ntawm concentrated HNO3.
High silicon cam khwb cia hlau (STSi15R):Haum rau txhua qhov kub thiab txias hauv qab 93% concentration.
High chromium cam khwb cia hlau (Cr28):Haum rau txhua qhov kub thiab txias hauv qab 80% concentration.
Stainless hlau (SUS304, SUS316, SUS316L):Haum rau txhua qhov kub thiab txias hauv qab 80% concentration.
S-05 steel (0Cr13Ni7Si4):Haum rau txhua qhov kub thiab txias hauv qab 98% concentration.
Kev lag luam ntshiab titanium (TA1, TA2):Haum rau txhua qhov kub thiab txias hauv qab qhov kub kub (tshwj tsis yog rau fuming).
Kev lag luam ntshiab aluminium (Al):Haum rau txhua qhov kub ntawm chav tsev kub (rau siv hauv cov thawv nkaus xwb).
CD-4MCu hnub nyoog-hardened alloy:Haum rau txhua qhov kub thiab txias hauv qab qhov kub kub.
Vim lawv cov corrosion kuj zoo heev, cov ntaub ntawv xws li Inconel, Hastelloy C, kub, thiab tantalum kuj haum.

Sulfuric Acid (H2SO4)

Cov yam ntxwv dav dav:Lub boiling point nce nrog lub concentration. Piv txwv li, ntawm ib tug concentration ntawm 5%, lub boiling point yog 101 ° C; ntawm 50% concentration, nws yog 124 ° C; thiab ntawm 98% concentration, nws yog 332 ° C. Hauv qab 75% concentration, nws nthuav tawm cov khoom txo qis (lossis nruab nrab), thiab siab dua 75%, nws nthuav tawm cov khoom oxidizing.
Stainless hlau (SUS316, SUS316L):Hauv qab 40 ° C, nyob ib ncig ntawm 20% concentration.
904 steel (SUS904, SUS904L):Haum rau qhov kub thiab txias ntawm 40 ~ 60 ° C, 20 ~ 75% concentration; qis dua 60% concentration ntawm 80 ° C.
High Silicon Cast Iron (STSi15R):Ntau qhov sib txawv ntawm chav tsev kub thiab 90 ° C.
Pure Lead, Hard Lead:Ntau yam kub ntawm chav tsev kub.
S-05 Steel (0Cr13Ni7Si4):Concentrated sulfuric acid hauv qab 90 ° C, high-temperature concentrated sulfuric acid (120 ~ 150 ° C).
Ordinary Carbon Steel:Concentrated sulfuric acid tshaj 70% ntawm chav tsev kub.
Cam khwb cia hlau:Concentrated sulfuric acid nyob rau hauv chav tsev kub.
Monel, Nickel Hlau, Inconel:Nruab nrab kub thiab nruab nrab concentration sulfuric acid.
Titanium Molybdenum Alloy (Ti-32Mo):Hauv qab taw tes, 60% sulfuric acid; Hauv qab 50 ° C, 98% sulfuric acid.
Hastelloy B, D:Hauv qab 100 ° C, 75% sulfuric acid.
Hastelloy C:Ntau yam kub ib ncig ntawm 100 ° C.
Nickel Cam khwb cia hlau (STNiCr202):60 ~ 90% sulfuric acid ntawm chav tsev kub.

Hydrochloric acid (HCl)

Cov yam ntxwv dav dav:Nws yog qhov nruab nrab txo qis nrog qhov kub siab tshaj plaws ntawm qhov concentration ntawm 36-37%. Boiling point: ntawm qhov concentration ntawm 20%, nws yog 110 ° C; ntawm 20-36% concentration, nws yog 50 ° C; Yog li ntawd, qhov kub siab tshaj plaws rau hydrochloric acid yog 50 ° C.
Tantalum (zeeg):Nws yog cov khoom siv zoo tshaj plaws corrosion-resistant rau hydrochloric acid, tab sis nws yog kim thiab feem ntau siv hauv precision ntsuas cov cuab yeej.
Hastelloy B:Haum rau hydrochloric acid ntawm qhov kub thiab txias ≤ 50 ° C thiab concentrations txog 36%.
Titanium-Molybdenum Alloy (Ti-32Mo):Haum rau txhua qhov kub thiab txias.
Nickel-Molybdenum Alloy (Chlorimet, 0Ni62Mo32Fe3):Haum rau txhua qhov kub thiab txias.
Kev lag luam ntshiab Titanium (TA1, TA2):Haum rau hydrochloric acid nyob rau hauv chav tsev kub thiab concentrations hauv qab 10%.
ZXSNM(L) Alloy (00Ni70Mo28Fe2):Haum rau hydrochloric acid ntawm qhov kub ntawm 50 ° C thiab concentration ntawm 36%.

Phosphoric Acid (H3PO4)

Qhov concentration ntawm phosphoric acid feem ntau yog nyob nruab nrab ntawm 30-40%, nrog rau qhov kub ntawm 80-90 ° C. Phosphoric acid feem ntau muaj impurities xws li H2SO4, F-ions, Cl-ions, thiab silicate.
Stainless hlau (SUS316, SUS316L):Haum rau boiling point phosphoric acid nrog ib tug concentration hauv qab 85%.
Durimet 20 (Alloy 20):Corrosion thiab hnav-resistant alloy rau kub hauv qab lub boiling point thiab concentrations hauv qab no 85%.
CD-4Mcu:Age-hardened alloy, corrosion thiab hnav-resistant.
High Silicon Cast Iron (STSi15R), High Chromium Cast Iron (Cr28):Haum rau ntau yam concentrations ntawm nitric acid hauv qab ntawm lub boiling point.
904,904l :ua.Haum rau ntau yam concentrations ntawm nitric acid hauv qab ntawm lub boiling point.
Yam khoom 825:Haum rau ntau yam concentrations ntawm nitric acid hauv qab ntawm lub boiling point.

Hydrofluoric Acid (HF)

Cov yam ntxwv dav dav:Hydrofluoric acid yog tshuaj lom heev. High-silicon cam khwb cia hlau, ceramics, thiab iav feem ntau resistant rau feem ntau acids, tab sis hydrofluoric acid tuaj yeem corrode lawv.
Magnesium (Mg):Nws yog ib qho zoo tshaj plaws corrosion-resistant khoom rau hydrofluoric acid thiab feem ntau yog siv rau ntim.
Titanium:Haum rau cov concentration ntawm 60-100% ntawm chav tsev kub; tus nqi corrosion nce nrog concentrations hauv qab 60%.
Monel alloy:Nws yog cov khoom zoo heev uas tiv taus hydrofluoric acid, muaj peev xwm tiv taus txhua qhov kub thiab txias, suav nrog cov ntsiab lus kub.
Nyiaj (Ag):Boiling hydrofluoric acid feem ntau yog siv rau hauv cov khoom siv ntsuas.

Sodium Hydroxide (NaOH)

Cov yam ntxwv dav dav:Lub corrosiveness ntawm sodium hydroxide nce nrog kub.
SUS304, SUS304L, SUS316, SUS316L:Concentration 42%, chav kub rau 100 ° C.
Nickel Cam khwb cia hlau (STNiCr202):Concentration qis dua 40%, kub hauv qab 100 ° C.
Inconel 804, 825:Concentration (NaOH + NaCl) txog 42% tuaj yeem ncav cuag 150 ° C.
Ntshiab Nickel:Concentration (NaOH + NaCl) txog 42% tuaj yeem ncav cuag 150 ° C.
Monel alloy:Haum rau qhov kub thiab txias, siab-concentration sodium hydroxide daws.

Sodium carbonate (Na2CO3)

Niam cawv ntawm soda tshauv muaj 20-26% NaCl, 78% Cl2, thiab 2-5% CO2, nrog rau qhov kub thiab txias ntawm 32 txog 70 degrees Celsius.
High silicon cam khwb cia hlau:Haum rau dej qab zib tshauv nrog qhov kub ntawm 32 txog 70 degrees Celsius thiab ib qho concentration ntawm 20-26%.
Industrial ntshiab titanium:Ntau lub tuam txhab loj loj hauv Suav teb tam sim no siv cov twj titanium ua los ntawm titanium rau niam cawv thiab lwm yam xov xwm.

Petrochemical, kws, thiab zaub mov industries

Petroleum:0Cr13, 1Cr13, 1Cr17.
Petrochemical:1Cr18Ni9 (304), 1Cr18Ni12Mo2Ti (SUS316).
Formic Acid:9 04,904l.
Acetic acid:Titanium (Ti), 316L.
Pharmaceutical:High silicon cam khwb cia hlau, SUS316, SUS316L.
Khoom noj khoom haus:1Cr18Ni9, 0Cr13, 1Cr13.