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Selected Corrosion Data

Hydrobromic Acid

Conc.
Wt.%

50°F

75°F

100°F

125°F

150°F

175°F

200°F

225°F

Boiling

10°C

24°C

38°C

52°C

66°C

79°C

93°C

107°C

2.5

-

-

-

-

<0.01

-

<0.01

-

<0.01

5

-

-

-

-

<0.01

0.13

0.60

-

-

7.5

-

-

-

-

<0.01

<0.01

0.93

-

-

10

-

-

-

-

0.15

0.82

-

-

-

15

-

-

<0.01

0.30

0.64

-

-

-

-

20

-

0.01

0.16

0.33

0.65

-

-

-

-

25

-

-

-

-

-

-

-

-

-

30

-

-

0.11

0.21

0.34

0.72

-

-

-

40

-

-

0.08

0.15

0.25

0.42

0.79

-

-

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Job 17-04.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.

Hydrobromic 625

Hydrochloric Acid

Conc.
Wt.%

50°F

75°F

100°F

125°F

150°F

175°F

200°F

225°F

Boiling

10°C

24°C

38°C

52°C

66°C

79°C

93°C

107°C

1

-

-

-

-

-

<0.01

<0.01

-

0.23

1.5

-

-

-

-

-

-

-

-

-

2

-

-

-

-

-

-

-

-

-

2.5

-

-

-

-

-

-

-

-

-

3

-

-

<0.01

<0.01

<0.01

2.07

-

-

-

3.5

-

-

-

-

-

-

-

-

-

4

-

-

-

-

-

-

-

-

-

4.5

-

-

-

-

-

-

-

-

-

5

-

-

<0.01

<0.01

-

4.65

-

-

-

7.5

-

-

0.07

0.49

-

-

-

-

-

10

<0.01

0.15

0.30

1.16

 

-

-

-

-

15

0.06

0.19

0.40

1.06

 

-

-

-

-

20

0.06

0.16

0.36

0.82

 

-

-

-

-

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Jobs 56-97 and 3-98.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.

Hydrochloric 625

Sulfuric Acid

Conc.
Wt.%

75°F

100°F

125°F

150°F

175°F

200°F

225°F

250°F

275°F

300°F

350°F

Boiling

24°C

38°C

52°C

66°C

79°C

93°C

107°C

121°C

135°C

149°C

177°C

1

-

-

-

-

-

-

-

-

-

-

-

-

2

-

-

-

-

-

-

-

-

-

-

-

-

3

-

-

-

-

-

-

-

-

-

-

-

-

4

-

-

-

-

-

-

-

-

-

-

-

-

5

-

-

-

-

<0.01

0.06

-

-

-

-

-

0.40

10

-

-

-

-

0.01

0.24

-

-

-

-

-

1.05

20

-

-

-

-

0.02

0.58

-

-

-

-

-

2.84

30

-

-

-

0.01

0.03

0.68

-

-

-

-

-

-

40

-

-

<0.01

0.02

0.58

-

-

-

-

-

-

-

50

-

-

-

0.01

0.89

-

-

-

-

-

-

-

60

-

-

<0.01

0.48

0.92

-

-

-

-

-

-

-

70

-

<0.01

0.23

0.63

-

-

-

-

-

-

-

-

80

-

0.05

0.31

0.91

2.54

-

-

-

-

-

-

-

90

<0.01

0.17

1.26

-

6.97

-

-

-

-

-

-

-

96

-

-

-

-

-

-

-

-

-

-

-

-

All corrosion rates are in millimeters per year (mm/y); to convert to mils (thousandths of an inch) per year, divide by 0.0254.
Data are from Corrosion Laboratory Jobs 57-97 and 4-98.
All tests were performed in reagent grade acids under laboratory conditions; field tests are encouraged prior to industrial use.

Sulfuric 625

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