Hastelloy C22 (UNS N06022) yog npib tsib xee-chromium-molybdenum-tungsten alloy paub txog nws qhov tshwj xeeb tsis kam mus rau ntau qhov chaw corrosive, suav nrog pitting, crevice corrosion, thiab kev ntxhov siab corrosion tawg. Nws ua tau zoo nyob rau hauv ob qho tib si oxidizing thiab txo cov xwm txheej, ua rau nws tsim nyog rau kev ua tshuaj lom neeg, tswj kev ua qias tuaj, thiab kev siv tshuaj. Nws cov nominal muaj xws li npib tsib xee, chromium (22%), molybdenum (13%), tungsten (3%), hlau (3%), thiab kab kawm.
Corrosion Resistance Txheej txheem cej luam
C22 muaj kev tiv thaiv zoo dua piv rau cov alloys xws li 316L stainless hlau lossis Hastelloy C276 hauv ntau qhov kev tawm tsam, tshwj xeeb yog cov tshuaj chlorides, oxidizers, thiab cov kua qaub sib xyaw. Compatibility feem ntau ntsuas los ntawm corrosion tus nqi (nyob rau hauv mm / y), nrog cov nqi qis dua 0.1 mm / y suav hais tias zoo heev rau feem ntau daim ntaub ntawv.
Rau hydrochloric acid, C22 qhia tau hais tias txhim kho kev tiv thaiv zoo sib xws alloys hauv dilute mus rau nruab nrab concentrations.
Corrosion Rates hauv Key Acids
Hauv qab no yog cov lus xaiv ntawm tus nqi corrosion (mm / y) rau C22 hauv cov kua qaub ntawm ntau qhov ntau thiab qhov kub, raws li iso- cov ntaub ntawv corrosion. Dashes qhia tsis muaj cov ntaub ntawv lossis tus nqi tsis txaus ntseeg.
Hydrochloric acid (HCl)
|
Concentration (wt.%) |
100℃F (38 degree) |
125 ° F (52 ° F) |
150℃F (66 degree) |
175 ° F (79 ° F) |
200℃F (93 degree) |
Boiling |
|
1 |
- |
- |
- |
- |
0.01 |
0.06 |
|
5 |
<0.01 |
- |
0.44 |
1.44 |
3.02 |
8.99 |
|
10 |
0.01 |
0.28 |
0.98 |
1.99 |
4.39 |
11.68 |
|
15 |
- |
- |
0.98 |
1.91 |
- |
11.02 |
|
20 |
0.20 |
0.32 |
0.90 |
1.72 |
3.38 |
9.73 |
Sulfuric Acid (H₂SO₄)
|
Concentration (wt.%) |
100℃F (38 degree) |
125 ° F (52 ° F) |
150℃F (66 degree) |
175 ° F (79 ° F) |
200℃F (93 degree) |
225 ° F (107 ° F) |
Boiling |
|
5 |
- |
<0.01 |
0.01 |
0.03 |
- |
- |
0.23 |
|
10 |
- |
- |
0.02 |
0.04 |
- |
- |
0.29 |
|
20 |
- |
0.01 |
0.03 |
0.28 |
- |
- |
0.83 |
|
30 |
- |
0.01 |
0.09 |
0.68 |
- |
- |
1.89 |
|
40 |
- |
0.01 |
0.01 |
0.31 |
0.87 |
- |
3.99 |
|
50 |
- |
- |
0.02 |
0.40 |
0.77 |
2.18 |
9.98 |
|
60 |
- |
0.01 |
- |
0.67 |
0.95 |
2.69 |
- |
|
70 |
- |
- |
0.28 |
0.56 |
0.94 |
3.07 |
- |
Nitric Acid (HNO ₃)
|
Concentration (wt.%) |
150℃F (66 degree) |
175 ° F (79 ° F) |
200℃F (93 degree) |
225 ° F (107 ° F) |
Boiling |
|
10 |
<0.01 |
- |
0.01 |
- |
0.01 |
|
20 |
0.01 |
- |
0.02 |
- |
0.06 |
|
30 |
0.01 |
- |
0.02 |
- |
0.13 |
|
40 |
0.02 |
0.03 |
0.09 |
- |
0.26 |
|
50 |
- |
0.05 |
0.14 |
0.33 |
0.59 |
|
60 |
0.06 |
0.08 |
0.19 |
0.57 |
1.09 |
|
70 |
0.05 |
0.11 |
0.33 |
0.71 |
2.53 |
Phosphoric Acid (H₃PO₄)
|
Concentration (wt.%) |
225 ° F (107 ° F) |
250℃F (121 degree) |
275 ° F (135 ° F) |
Boiling |
|
50 |
- |
- |
- |
0.07 |
|
60 |
0.08 |
- |
- |
0.16 |
|
70 |
0.07 |
0.13 |
- |
0.23 |
|
75 |
0.05 |
0.12 |
- |
0.19 |
|
80 |
0.06 |
0.12 |
0.16 |
0.25 |
|
85 |
0.07 |
0.12 |
0.20 |
0.66 |
Broader Chemical Compatibility
Rau ntau yam tshuaj, kev sib raug zoo feem ntau yog A (zoo heev, tsis muaj teebmeem), B (zoo / me me, siv ceev faj), lossis C (tsis pom zoo). Qhov ntsuas kub siab tshaj plaws raug sau tseg thaum siv tau. Nov yog ib daim ntawv teev npe; nrog rau cov tuam txhab lag luam rau cov khoom tsis muaj npe.
|
Tshuaj |
Kev ntsuas |
Max kub (degree F) |
Sau ntawv |
|
Acetic acid (10%) |
A |
220 |
|
|
Acetic Acid (Glacial) |
A |
125 |
|
|
Acetone |
A |
250 |
|
|
Aluminium Chloride |
A |
230 |
|
|
Ammonia (Anhydrous) |
A |
250 |
|
|
Ammonium hydroxide |
A |
200 |
|
|
Benzene |
A |
170 |
|
|
Bromine |
A |
125 |
|
|
Calcium Chloride |
A |
230 |
|
|
Cov pa roj carbon tetrachloride |
A |
230 |
|
|
Chlorine (Anhydrous Liquid) |
C |
175 |
Qhuav tej yam kev mob nkaus xwb |
|
Chromic acid (10%) |
A |
175 |
|
|
Citric Acid |
A |
230 |
|
|
Diesel Roj |
A |
230 |
|
|
Ethanol |
A |
212 |
|
|
Ferric Chloride |
B |
230 |
Xav kom ua kua kawg |
|
Formaldehyde |
A |
125 |
|
|
Roj av |
A |
230 |
|
|
Hydrochloric acid |
B |
230 |
Txog li 80% concentration |
|
Hydrogen Peroxide |
B |
- |
Volatile; siv lub taub hau degassing |
|
Nitric acid (50%) |
A |
125 |
Hauv qab 60℃F |
|
Phosphoric Acid |
A |
230 |
|
|
Sodium hydroxide |
A |
230 |
|
|
Sulfuric Acid |
A |
230 |
Rau hydrofluoric acid, C22 qhia tau hais tias sab nraud zoo tab sis yuav muaj kev tawm tsam sab hauv; tus nqi yog 0.04 mm/y ntawm 5% concentration thiab 100℃F. Tsis txhob C22 nyob rau hauv heev concentrated HCl los yog qhuav chlorine yam tsis tau kuaj.
Ib txwm tshawb xyuas nrog cov kev sim teb lossis sab laj cov neeg xa khoom zoo li Jinie Technology rau cov ntawv thov tshwj xeeb.
