MIL-HDBK-1003/7
TABLE 16
Recommended Tube, Tube Sheet and Water Box Materials
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*
*
Specific
Tube
Interior Water
Cathodic
* Water
Protection *
Tube
Sheet
Water Box Box
* Type
*
Material Material Material Coating Type
*
*
ms/cm
mg/L
*
*
*
* Fresh-
2,000
250
304 ss,
Carbon
Carbon
None
None
* water
*
Steel2
ASTM
Steel
*
*
A 249
ASTM
*
*
A283 Gr C
*
*
Sacrificial *
* Fresh-
6,000
1,000 304 SS,
Carbon
Carbon
None
* water
*
Steel2
ASTM
Steel
Anodes
*
*
A 249
ASTM
*
*
A283 Gr C
*
*
* Fresh-
Sacrificial *
9,000 1,500
304 SS
Carbon
Carbon
Yes
* water
*
Steel2
ASTM
Steel
Anodes
*
*
ASTM
*
*
A283 Gr C
*
*
* Brackish 9,000 1,500
*
90-10
Aluminum Carbon
Yes
Impressed
* water and
*
2
Cu-Ni,
Bronze
Steel
Current
* High TDS
*
(Alloy D)
* Freshwater
*
C61400
*
*
* Clean
*
30,000 15,000 90-10
Aluminum Carbon
Yes
Impressed
* Seawater
*
2
Cu-Ni,
Bronze
Steel
Current
*
*
C70600
(Alloy D)
*
*
C61400
*
*
* Polluted 30,000 15,000 Titanium, Aluminum Carbon
*
Yes
Impressed
*
* Seawater3
Steel2
ASTM
Bronze
Current
*
*
B 338 Gr (Alloy D),
*
*
C61400
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1
Other chemical characteristics of the cooling water must be considered, such as ph and
iron and manganese concentration. Full classification of the cooling water must be on a
project by project basis.
2
ASTM A 285 Gr C or ASTM A 283 Gr C.
3
Polluted seawater includes water with sulfide related content. Sulfides and sulfide
related compounds may be found in cooling waters other than seawater.
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