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A516 Gr. 70 N + NACE

A516 Gr. 70 N + NACE

A516 Gr. 70 N + NACE

(OP)
Dear Tank Builders,


SA 516 Gr. 70 N is included in P no. 1 Group No. 2 according to ASME Section IX.

In API 650 this material is included in Group V.

Now the tank designer specified A516 Gr. 70 N + NACE.

Since there is NACE additional specs. in this material, could we classified the same ? I mean still within P 1 Gr. 2 and API 650 Group V.

Syah

RE: A516 Gr. 70 N + NACE

The requirements of NACE MR0175 will not alter the API or ASME grouping. You might want to ask the 'tank designer' what exactly they mean by "A516 Gr. 70 + NACE" because it does not explicitly state the actual requirements.

Steve Jones
Corrosion Management Consultant

http://www.linkedin.com/pub/8/83b/b04

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