Testing Laboratory of Certification Centre CONTSTAND earn, out testing for determination or confirmation of corrosion resistance of different steel grades used for making of pipes and oil-field equipment. Kinds of testing are assigned on the basis of the technological normative document for the product. As a rule it is stress sulfide corrosion cracking resistance testing according to the standard NACE 0177-2005, hydrogen-stress cracking testing according to the standard NACE 0284-2003, determination of general corrosion rate with results assessment according to GOST 9.908-85. If testing results are positive this product is considered as resistant to sulfide cracking at this stress level. This material is approved for industrial application in sulfide containing mediums.
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