zebmahar
Materials
- Dec 12, 2010
- 46
It is written in API 5L, 44th edition Page No. 21
8.9 Cold Sizing and Cold Expansion
8.9.1 Except as allowed by 8.9.2, the sizing ratio for cold sized pipe shall not be more than 0,015, unless
(a) the pipe is subsequently normalized or quenched and tempered, or
(b) the entire part of the pipe that is cold sized is subsequently stress relieved.
8.9.2 Unless otherwise agreed, the sizing ratio for cold expanded pipe shall not be less than 0,003 or more than 0,015.
Please tell me, either this clause allows expansion more than 0,015 when subsequent heat treatment (normalizing) is performed, or heat treatment (normalizing) shall be performed when expansion ratio reaches 0,015
Hoping for prompt replies form u guys
Kind regards
Zebmahar
8.9 Cold Sizing and Cold Expansion
8.9.1 Except as allowed by 8.9.2, the sizing ratio for cold sized pipe shall not be more than 0,015, unless
(a) the pipe is subsequently normalized or quenched and tempered, or
(b) the entire part of the pipe that is cold sized is subsequently stress relieved.
8.9.2 Unless otherwise agreed, the sizing ratio for cold expanded pipe shall not be less than 0,003 or more than 0,015.
Please tell me, either this clause allows expansion more than 0,015 when subsequent heat treatment (normalizing) is performed, or heat treatment (normalizing) shall be performed when expansion ratio reaches 0,015
Hoping for prompt replies form u guys
Kind regards
Zebmahar
