High strength, low allow steels such as A193-B7 bolts and compressor parts are susceptible to hydrogen stress cracking. A193-B7M bolts are susceptible if __________.
ASTM A193-B7M bolts are made of a high-strength, chromium-molybdenum alloy steel. This type of steel is susceptible to hydrogen stress cracking (HSC) when exposed to hydrogen and subjected to tensile stress.
Overtorquing can lead to HSC in A193-B7M bolts because it introduces tensile stress into the bolt. The overtorque can also damage the bolt's surface, which can create sites where hydrogen can accumulate.
Hydrogen can enter the bolt in a number of ways, including:
From the environment, such as from moist air or corrosive liquids
From electroplating or other surface treatments
From welding or other thermal processes
upvoted 1 times
...
Log in to ExamTopics
Sign in:
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.
Upvoting a comment with a selected answer will also increase the vote count towards that answer by one.
So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.
ahmadmm
1 year, 1 month ago