FAQs

At OGC Energy we help the energy industry with finding answers to some of their most difficult questions. We have created this section hoping that you will find answers to some of the most common questions in the following areas:

  • Corrosion in offshore industry
  • Downhole corrosion
  • Materials Selection
  • ANSI/NACE MR0175 / ISO 15156
  • H2S

If you require technical support in metallurgy, corrosion, or welding; or if you need assistance meeting the requirements of ANSI/NACE MR0175/ISO 15156 then contact our team, we are here to help you.

  • 11.

    Are carbon-manganese steels included in NACE MR0175?

    QUESTION: ISO 15156-2 Annex A.2.1.4 differentiate between “carbon steel”, “carbon manganese steel” and “low-alloy steel”. The terms “carbon steel” and “low-alloy steel” are defined in ISO 15156-1, but not “carbon manganese steel”. What is the definition of “carbon manganese steel” in the scope of NACE MR0175? (MP INQUIRY #2017-23) ANSWER: Although not directly defined in […]

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  • 12.

    What is NACE MR0175 compliance?

      What is NACE MR0175 compliance? Compliance with NACE MR0175 is achieved when all materials, fabrication and equipment comply with the requirements of ANSI / NACE MR0175 / ISO 15156. NACE MR0175 is an international standard that provides the requirements for metallic materials exposed to H2S in oil and gas production environments. NACE MR0175 is […]

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  • 13.

    Does NACE MR0175 require impact test?

    NACE MR0175 is an international standard that provides the requirements for metallic materials exposed to H2S in oil and gas production environments. NACE MR0175 is identical to ISO 15156. ANSI / NACE MR0175 / ISO 15156 lists the requirements for carbon steels, low alloys and corrosion resistant alloy exposed to H2S in oil and gas […]

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  • 14.

    What are the NACE MR0175 marking requirements?

      What are the NACE MR0175 marking requirements? NACE MR0175 is an international standard that provides the requirements for metallic materials exposed to H2S in oil and gas production environments. NACE MR0175 is identical to ISO 15156. ANSI / NACE MR0175 / ISO 15156 lists the requirements for carbon steels, low alloys and corrosion resistant […]

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  • 15.

    What is the NACE MR0175/ISO 15156 revision history?

    What is the NACE MR0175/ISO 15156 revision history? NACE MR0175 is an international standard that provides the requirements for metallic materials exposed to H2S in oil and gas production environments. NACE MR0175 is identical to ISO 15156. ANSI / NACE MR0175 / ISO 15156 lists the requirements for carbon steels, low alloys and corrosion resistant […]

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  • 16.

    What is the NACE MR0175 latest edition?

    What is the NACE MR0175 latest edition? [insert page=’nace-mr0175-latest-edition’ display=’content’]  

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  • 17.

    What is NACE bolting?

      What is NACE bolting? NACE bolting is a term used for bolts that are in compliance with NACE MR0175. NACE MR0175 is an international standard that provides the requirements for metallic materials exposed to H2S in oil and gas production environments. NACE MR0175 is identical to ISO 15156. ANSI / NACE MR0175 / ISO […]

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  • 18.

    Is NACE MR0175 used only for sour service?

    Is NACE MR0175 used only for sour service? NACE MR0175 is an international standard that provides the requirements for metallic materials exposed to H2S in oil and gas production environments. NACE MR0175 is identical to ISO 15156. ANSI / NACE MR0175 / ISO 15156 lists the requirements for carbon steels, low alloys and corrosion resistant […]

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  • 19.

    Which corrosion resistant alloy cladding complies with NACE MR0175?

      Which corrosion resistant alloy cladding complies with NACE MR0175? NACE MR0175 is an international standard that provides the requirements for metallic materials exposed to H2S in oil and gas production environments. ANSI / NACE MR0175 / ISO 15156 provides the requirements for corrosion resistant claddings and linings. These requirements may include: Requirements for corrosion […]

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  • 20.

    What is the NACE MR0175 heat treatment?

    What is the NACE MR0175 heat treatment? NACE MR0175 is an international standard that provides the requirements for metallic materials exposed to H2S in oil and gas production environments. These requirements include: Chemistry Heat treatment form Hardness Microstructure (in some cases) HIC resistance. NACE MR0175 has specific heat treatment requirements for carbon steel and low […]

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