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Errata Sheet NACE Standard TM0177-96
Users of NACE Standard TMO177-96 should make the following changes: (1) Paragraph 9.5.1: Thesecondsentenceshould read: “For carbonandlow-alloy steels, Sc valuesare typically in the rangeof 69 MPa (lo4 si) at 22 to 24 HRC.” (The changed portion is underlined.)


In Figure lO(a), the J arrow should be extended to the left as shown:

45°-500, G m v eroot radiusR A

I ‘ I

Section C-C



Section A-A
Full wall


(milling cutter)



A DCB specimen of length U may beused if verylow cracking resistance expected. is A short electrodischarge-machined(EDM) slot, X thick, extendingto a depth Y from theslotted end, maybe substituted for the of chevroncrack starter. &A Grooves must be centered within toleranceand must be opposite within tolerance 2 2.

Blunt end o to a pi n l







4.05 0.3 41.3 4.05

5 1 . 00 +0.002 O 00 .1



t is sufficient to give the specified arm displacement.

(a) Design
Figure 10 DCB Specimen

(b) Double-tapered wedge

COPYRIGHT 2003; NACE InternationalDocument provided by IHS Licensee=Qatar Petroleum/5943408103, User=, 07/28/2003 12:57:34 MDT Questions or comments about this message: please call the Document Policy Management Group at 1-800-451-1584.

NACE Standard TM0177-96 Item No. 21212

Standard Test Method
to Laboratory Testing of Metals for Resistance Specific Formsof Environmental Cracking in H2S Environments
This NACEInternational standard represents a consensus of those individual members who have reviewedthisdocument, its scope,andprovisions. Its acceptancedoesnot in anyrespect preclude anyone, whether he has adopted the standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conformance with this standard. in Nothing containedin this NACE International standardisto 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 shouldno in way be interpreted as a restriction on the use of betterprocedures or materials. Neither is this standard intended to apply in all cases relating to the subject. Unpredictable circumstances may negatetheusefulnessof this standard in specific instances. NACE International assumes no responsibility the for interpretation or of use this standard other by parties accepts and responsibility only official for those NACE International interpretations issuedNACE byInternational in accordance with its governing procedures policies and which preclude the issuance of interpretations by individual volunteers. Usersof this NACE Internationalstandardareresponsibleforreviewingappropriatehe

alth, safety, environmental, and regulatory documents and for determining their applicability relation in to this standard prior to its use. This NACE International standard maynot necessarily address all potential health and safety problems or environmental hazards associated with the use of materials, equipment, and/or operations detailed or referred within this standard. Users of this to NACE International standard are also responsible for establishing appropriate health, safety, and environmental protection practices, in consultation appropriate with regulatoryauthorities if necessary, to achieve compliance with any existing applicable regulatory requirements to the prior use ofthis standard. CAUTIONARY NOTICE: NACE International standards are subject to periodic review, and may be revised or withdrawn at any time without prior notice. NACE International requires that action be taken to reaffirm, revise, or withdraw this standard no later than five years...
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