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Exam API-571 All Questions

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Exam API-571 topic 1 question 101 discussion

Actual exam question from API's API-571
Question #: 101
Topic #: 1
[All API-571 Questions]

Alloys with nickel content above _________ are highly resistant to Cl SCC. The greatest susceptibility is 8% to 12% nickel.

  • A. 15%
  • B. 20%
  • C. 30%
  • D. 35%
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Suggested Answer: D 🗳️

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ahmadmm
1 year, 4 months ago
Nickel content of the alloy has a major effect on resistance. The greatest susceptibility occurs in stainless steels with a nickel content of 8 % to 12 %. Alloys with nickel contents - 8% to 12% are the most susceptible - above 35 % are highly resistant, and - above 45 % are nearly immune in refining applications, but cracking can still occur in severe conditions.
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