FAQ's
In NACE MR0175, is ductile iron ASTM A 536 acceptable for pressure-containing parts?
NACE MR0175/ISO 15156 Part 2, Annex A: Can Ductile Iron ASTM A 536 Be Used for Pressure-Containing Parts?
Introduction
This page provides a question and answer related to NACE MR0175/ISO 15156 Part 2, Annex A. The question concerns the use of ductile iron ASTM A 536 for pressure-containing parts, specifically, valve stems, since it is not explicitly mentioned in Paragraph A.2.4.1. In Table A.5, it is listed as an acceptable material for drillable packer components for sour service.
The Answer
The answer clarifies that ductile iron ASTM A 536 may not be used for pressure-containing parts since it is not listed in A.2.4.1.
Conclusion
This question relates to NACE MR0175/ISO 15156-2 Annex A.2.4.1 and A.5, and the page offers assistance in discussing the NACE MR0175 requirements for cast irons.