|
|
|
|
Design Metal
|
|
|
Seamless Tube
|
Seamless Pipe
|
Temperature
|
|
Material
|
Specification
|
Specification
|
Limit per API
RP530
|
|
Carbon Steel
|
A53
|
A106
|
1000°F (540°C)
|
|
1¼Cr-½Mo
|
A213 T11
|
A335 P11
|
1100°F (595°C)
|
|
2¼Cr-1Mo
|
A213 T22
|
A335 P22
|
1200°F (650°C)
|
|
3Cr-1Mo
|
A213 T21
|
A213 P21
|
1200°F
(650°C)
|
|
5Cr-½Mo
|
A213 T5
|
A335 P5
|
1200°F (650°C)
|
|
5Cr-½Mo-Si
|
A213 T5b
|
A335 P5b
|
1300°F
(705°C)
|
|
9Cr-1Mo
|
A213 T9
|
A335 P9
|
1300°F (705°C)
|
|
9Cr-1Mo-V
|
A213 T91
|
A335 P91
|
1200°F
(650°C)1
|
|
Type 304H
|
A213 TP304H
|
A312 TP304H
|
1000°F (540°C)
|
|
Type 316
|
A213 TP316
|
A312 TP316
|
1000°F (540°C)
|
|
Type 321
|
A213 TP321
|
A312 TP321
|
1000°F (540°C)
|
|
Type 347
|
A213 TP347
|
A312 TP347
|
1000°F (540°C)
|
|
Alloy
800H/800HT
|
B407 Gr
800H/800HT
|
B407 B407 Gr
800H/800HT
|
1800°F
(985°C)1
|
|
HK
|
A608 Gr HK402
|
|
1850°F (1010°C)1
|
|
HP
|
|
A297 HP
|
|
Common Heater Tube Metallurgies
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