enmax
Materials
- May 17, 2007
- 51
Can API5L Grade A or B pipe be used for Region 0 in Figure 1 of NACE MR0175/ISO15156-2 2009 without calling up any special requirements?
The impression given in the NACE document in Clause 7.1.1 and 7.2.1.3 is that no special precautions are needed but then goes on to list General Requirements for Carbon and Low Alloy Steels, via Clause A.2, including metallurgical conditions; Clause A.2.1.2 states a maximum hardness of 22HRC and Clause A.2.1.4 says that welding has to be in accordance with Clause 7.3.3 which, in turn, says that the welding standards have to be agreed between the supplier and purchaser. So it seems that to simply buy API5L Grades A and B from a stockist is not an option and so I would need to order these grades with additional requirements. Is my understanding correct? If I were to operate in Region 0, could I use API 5L direct from a stockist with no additional requirements?
The impression given in the NACE document in Clause 7.1.1 and 7.2.1.3 is that no special precautions are needed but then goes on to list General Requirements for Carbon and Low Alloy Steels, via Clause A.2, including metallurgical conditions; Clause A.2.1.2 states a maximum hardness of 22HRC and Clause A.2.1.4 says that welding has to be in accordance with Clause 7.3.3 which, in turn, says that the welding standards have to be agreed between the supplier and purchaser. So it seems that to simply buy API5L Grades A and B from a stockist is not an option and so I would need to order these grades with additional requirements. Is my understanding correct? If I were to operate in Region 0, could I use API 5L direct from a stockist with no additional requirements?
