If you have any questions, please Call: +86-(0)917-3565328
FENGZE METAL > News > Technical information > Corrosion Datas of Titanium
News Categories
Strategic goal: Create first-class quality, forge metal with souls
Trade promotes production, production furthers trade
Mission: To be abundant in China, to be beneficial everywhere
Business philosophy: Survive by quality, develop on creativity
Dream: Struggle for astronautics of humankind
Service philosophy: Is it not delightful to have friends coming from afar
News
Corrosion Datas of Titanium

Media

concentration
(%)

temperature/℃

corrosion rate
/mm/a(year)

Corrosion grade

mineral acid

hydrochloric acid

1

indoor temperature boiling

0.000/0.345

excellent/good

5

indoor temperature boiling

0.000/6.530

excellent/bad

10

indoor temperature boiling

0.175/40.87

good/bad

20

indoor temperature

1.340/—

bad/—

35

indoor temperature

6.660/—

bad/—

sulfuric acid

5

indoor temperature boiling

0.000/13.01

good/bad

10

indoor temperature

0.230/—

good/—

60

indoor temperature

0.277/—

good/bad

80

indoor temperature

32.660/—

bad/—

95

indoor temperature

1.400/—

bad/—

nitric acid

37

indoor temperature boiling

0.000/<0.127

excellent/excellent

64

indoor temperature boiling

0.000/<0.127

excellent/excellent

95

indoor temperature

0.0025/—

excellent/—

phosphoric acid

10

indoor temperature boiling

0.000/6.400

excellent/bad

30

indoor temperature boiling

0.000/17.600

excellent/bad

50

indoor temperature

0.097/—

excellent/—

chromic acid

20

indoor temperature boiling

<0.127/<0.127

excellent/excellent

nitric acid + hydrochloric acid

1:3

indoor temperature boiling

0.0040/0.127

excellent/excellent

3:1

indoor temperature

<0.127/—

excellent/—

nitric acid + sulfuric acid

7:3

indoor temperature

<0.127/—

excellent/—

4:6

indoor temperature

<0.127/—

excellent/—

organic acid

acetate

100

indoor temperature boiling

0.000/0.000

excellent/excellent

formic acid

50

indoor temperature

0.000/—

excellent/—

oxalic acid

5

indoor temperature boiling

0.127/29.390

good/bad

10

indoor temperature

0.008/—

excellent/—

lactic acid

10

indoor temperature boiling

0.000/0.033

excellent/ excellent

25

boiling

—/0.028

—/ excellent

methanoic acid

10

boiling

—/1.270

—/good

25

—/100

—/2.440

—/bad

50

—/100

—/7.620

—/bad

tannic acid

25

indoor temperature boiling

<0.127/<0.127

excellent/ excellent

citric acid

50

indoor temperature boiling

<0.127/<0.127

excellent/ excellent

stearic acid

100

indoor temperature boiling

<0.127/<0.127

excellent/ excellent

aqueous alkali

sodium hydroxide

10

boiling

—/0.020

—/ excellent

20

indoor temperature boiling

<0.127/<0.127

excellent/ excellent

50

indoor temperature boiling

<0.0025/0.0508

excellent/ excellent

73

boiling

—/0.127

—/excellent

potassium hydroxide

10

boiling

—/<0.127

—/excellent

25

boiling

—/0.305

—/good

50

30/ boiling

0.000/2.743

excellent/bad

ammonium hydroxide

28

indoor temperature

0.0025/—

excellent/—

sodium carbonate

20

indoor temperature boiling

<0.127/<0.127

excellent/ excellent

ammonia

20

indoor temperature

0.0708/—

excellent/—

mineral salt solution

ferric chloride

40

indoor temperature /95

0.000/0.002

excellent/ excellent

ferrous chloride

30

indoor temperature boiling

0.000/<0.127

excellent/ excellent

Lead dichloride

10

<0.127/<0.127

cuprous chloride

50

<0.127/<0.127

ammonium chloride

10

<0.127/<0.000

calcium chloride

10

<0.127/<0.000

aluminium chloride

25

<0.127/<0.127

magnesium chloride

10

<0.127/<0.127

nickel chloride

5-10

<0.127/<0.127

barium chloride

20

<0.127/<0.127

copper sulfate

20

<0.127/<0.127

ammonium sulfate

20℃saturation

<0.127/<0.127

sodium sulfate

50

<0.127/<0.127

Zincum Snlfuricum

20℃saturation

<0.127/<0.127

cuprous sulfate

10

<0.127/<0.127

30

<0.127/<0.127

silver nitrate

11

indoor temperature

<0.127/—

excellent /—

organic compounds

benzene

Steam and liquid

80

0.005

excellent

carbon tetrachloride

Steam and liquid

boiling

0.005

tetrachloroethylene
(stable)

100% Steam and liquid

0.0005

tetrachloroethylene(H2O)

0.0005

trichloromethane

0.003

trichloromethane(H2O)

 

0.127

good

trichloro ethylene

99%Steam and liquid

0.00254

excellent

trichloro ethylene(stable)

99

0.00254

methanal

37

0.127

good

methanal(2.5%H2SO4)

50

0.305

good

PS:1.Corrosion is divided into three grades: excellent——excellent corrosion resistance, corrosion rate is under 0.127mm/a. Good——good corrosion resistance,corrosion rate is between 0.127-1.27mm/a. Bad——unable to resist corrosion, corrosion rate is above 1.27mm/a.
2.In most medium, especially in neutral, oxidizing medium and seawater, pure titanium has high corrosion resistance. The corrosion resistance of titanium is much higher than aluminum alloy, stainless steel and nickel alloy in sea water; in industry, agriculture and the Marine environment, the color of titanium surface won’t change after several years. In hydrofluoric acid, sulfuric acid, hydrochloric acid, orthophosphoric acid and some hot concentrated organic acid, titanium can be easily corroded.
3.Localized corrosion and intergranular corrosion won’t happen to titanium, it happens uniformly. 4.The corrosion resistance of titanium alloy is similar with pure titanium, that’s why titanium alloy can be widely used in chemical and shipbuilding.
© 2013 FZ. All Rights Reserved. 陕ICP备13009523号 技术支持:伙伴网络