production of API 5L grades

[zeitung]

Can anybody give me any information about
the production parameters (concerning soaking temperature,
heat treatment, rolling conditions,etc.) and chemical compositions, respectively, to the following
API 5L grades: X60-X80 ?

Thanks for some information!

Best regards,
WoKu

 

[sayee1]

API 5L X60, X65, X70 PSL 1 -seamless
C 0.26 max
Mn 1.4 max
P 0.030 max
S 0.030 max
Nb,V,Ti % or combinations thereof may be furnished by agreement between purchaser and manufacturer.
Note: The C % and the Mn percentage varies slightly for the welded varieties for the various grades but otherwise similar to the above.
API 5L X60, X65, X70, X80 PSL 2-seamless
C 0.24 max
Mn 1.4 max
P 0.025 max
S 0.015 max
Nb,V,Ti % or combinations thereof may be furnished by agreement between purchaser and manufacturer.
Note: The C % and the Mn percentage varies slightly for the welded varieties for the various grades but otherwise similar to the above.

These pipes are normally in the Q&Ted conditions. If you need info on the chemical compositions for the welded pipes let me know. Thanks and regards
Sayee Prasad R
Ph: 0097143968906
Mob: 00971507682668
End of all knowledge is the attainment of immortality!

 

[zeitung]

Thank you, Mr Sayee Prasad, for information!

Now I do have another question, concerning API 5L grades:

Is there any difference in produce sour and non-sour API 5L steel grades, especially concerning the hot rolling area?

Best regards,

WoKu

 

[DMAUFCG]

Hi everyone,

I'd like to know about X60-80 microstructure in post fabrication condition and fabrication schedule for welded pipes. I'm working with ultra low carbon steel pipes

 

[1969grad]

Sour and non-sour refers to the fluid flowing in the pipe and not the pipe itself.

For a sour fluid, you need to have tighter requirements than is specificed in API 5L. For example, control the chemistry and toughness of the pipe. Suggest you get help from a metalurgest (never could spell).

 

[Leija]

You should be according with NACE-MR-0175 for material requirements for sour service, the hardness shall be controlated in the material terminated.