Petroleum and natural gas industries — Materials for use in H2S-containing environments in oil and gas production — Part 1: General principles for selection of cracking-resistant materials. Convert Swiss francs (CHF) to your currency.

This part of NACE MR0175/ISO 15156 describes general principles and gives requirements and recommendations for the selection and qualification of metallic materials for service in equipment used in oil and gas production and in natural gas

NACE MR0175/ISO 15156 only addresses the resistance of materials to environmental cracking that can be caused by H2S. It does not address loss of material by general corrosion or localized corrosion such as pitting or crevice corrosion.

The expanded description includes specific guidance provided in ISO 15156-2:2020, Annex C for gas phase containing systems using H 2S fugacity (as an alternative to H 2S partial pressure) and application of non-ideal thermodynamic rules for gas-free liquid systems. A list of all parts in the ISO 15156 series can be found on the ISO website.

The ISO 15156 series Maintenance Agency at DIN was set up after approval by the ISO Technical Management Board given in document 34/2007. This document describes the makeup of the agency, which includes experts from NACE, EFC, and ISO/TC 67, and the process for approval of amendments.

The ISO 15156 series Maintenance Agency at DIN was set up after approval by the ISO Technical Management Board given in document 34/2007. This document describes the make up of the agency,

This document describes general principles and gives requirements and recommendations for the selection and qualification of metallic materials for service in equipment used in oil and gas production and in natural-gas sweetening plants in H 2 S-containing environments, where the failure of such equipment can pose a risk to the health and safety...

The standard provides requirements & recommendations for the selection and qualification of metallic materials for service in equipment used in oil and gas production in H2S containing environments. It supplements, but does not replace, the materials’ requirements of the appropriate design codes, standards or regulations.

ISO 15156-1:2015 addresses all mechanisms of cracking that can be caused by H2S, including sulfide stress cracking, stress corrosion cracking, hydrogen-induced cracking and stepwise cracking, stress-oriented hydrogen-induced cracking, soft zone cracking, and galvanically induced hydrogen stress cracking.