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The
NACE Standard MR0175-94, Item No. 21302 (Disclaimer)
Standard
Material Requirements Sulfide Stress Cracking
Resistant
Metallic Materials for Oilfield Equipment"
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| NACE
International issues this standard in conformance with the best current
technology regarding the specific subject.
This standard represents a consensus of those individual members who have
reviewed this document, its scope, and provisions.
It is intended to aid the manufacturer, the consumer, and the general
public. Its acceptance does not in
any respect preclude anyone, whether he has adopted the standard or not, from
manufacturing, marketing, purchasing, or using products, processes, or
procedures not in conformance with this standard.
Nothing contained in this NACE International standard is to
be construed as granting any right, by implication or otherwise, to manufacture,
sell, or use in connection with any method, apparatus, or product covered by
Letters Patent, or as indemnifying or protecting anyone against liability for
infringement of Letters Patent. This
standard represents minimum requirements and should in no way be interpreted as
a restriction on the use of better procedures or materials.
This standard is not intended to apply in all cases relating to the
subject. Unpredictable
circumstances may negate the usefulness of this standard in specific instances.
NACE International assumes no responsibility for the interpretation or
use of this standard by other parties and accepts responsibility for only those
official NACE International interpretations issued by NACE International in
accordance with its governing procedures and policies, which preclude the
issuance of interpretations by individual volunteers.
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Users
of this standard are responsible for reviewing appropriate health, safety, and
regulatory documents and for determining their applicability in relation to this
standard prior to use. This NACE
International standard may not necessarily address all safety problems and
hazards associated with the use of materials, operations, and/or equipment
detailed or referred to within this document.
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| CAUTIONARY
NOTICE: NACE International standards are subject to periodic review and may be
revised or withdrawn at any time without prior notice.
The user is cautioned to obtain the latest edition.
NACE International requires that action be taken to reaffirm, revise, or
withdraw this standard no later than five years from the date of initial
publication. Purchasers of NACE
International standards may receive current information on all standards and
other NACE International publications by contacting the NACE International
Membership Services Department, P.O. Box 218340, Houston, Texas 77218-8340
(telephone +1 713/492-0535).
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Foreword
This
NACE standard (materials requirement) is one step in a series of committee
studies, reports, symposia, and standards that have been sponsored by Group
Committee T-1 (Corrosion Control in Petroleum Production) relating to the
general problem of sulfide stress cracking (SSC) of metals.
Much of this work has been
directed toward the oil and gas production industry.
Many of the guidelines and specific requirements in this standard are
based on field experience with the materials listed, as used in specific
components, and may be applicable to other components and equipment in the oil
production industry or to other industries.
Users of this standard must be cautious in extrapolating the content of
this standard for use beyond its scope.
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materials, heat treatments, and metal property requirements given in this
standard represent the best judgment of Task GroupT-1F-1 and its sponsoring unit
committee, T-1F, on Metallurgy of Oilfield Equipment.
This NACE standard updates and supersedes all previous editions of
MR0175. The original 1975 edition
of the standard superseded NACE Publication 1F166 (1973 Revision) titled
"Sulfide Cracking Resistant Metallic Materials for Valves for Production
and Pipeline Service," and NACE Publication 1B163 titled
"Recommendation of Materials for Sour Service," (which included
Tentative Specifications 150 on valves, 51 on severe weight loss, 60 on tubular
goods, and 50 on nominal weight loss). This
standard will be revised as necessary to reflect changes in technology. (See
Paragraph 1.6.) Whenever possible,
the recommended materials are defined by reference to accepted generic
descriptors (such as UNS(1) numbers) and/or accepted standards, such as AISI (2)
API (3) ASTM,(4) or DIN(5) standards.
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| This
standard represents a consensus of those individual members who have reviewed
this document, its scope, and provisions. Its
acceptance does not in any respect preclude anyone, whether he has adopted the
standard or not, from manufacturing, marketing, purchasing, or using products,
processes, or procedures not in conformance with this standard.
Nothing contained in this NACE International standard is to be construed
as granting any right, by implication or otherwise, to manufacture, sell, or use
in connection with any method, apparatus, or product covered by Letters Patent,
or as indemnifying or protecting anyone against liability for infringement of
Letters Patent. This standard
represents minimum requirements and should in no way be interpreted as a
restriction on the use of better procedures or materials.
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