Hi,
I reviewed a material certificate for a pipe nipple with threading to ANSI/ASME B1.20.1 NPT. However, our requirement was threading to API 5B Table 3.
Can I accept this deviation?
I checked the dimensional requirements of both specifications and found a minor difference in the height of...
I'm reviewing the latest API 5L April 2018. I'm interested to know the heat treatment requirement for PSL 1 Pipe material, but I can't find it anywhere!!
I appreciate if someone can guide me to the clause that specifies this requirement.
Why do material specifications (ASTM/ASME) limit the maximum Hardness value, and not Yield Strength?
I know that steels with high strength -above a certain limit- indicate a microstructure that is more susceptible to cracking. So why not represent microstructure by Yield Strength? Both hardness...
TGS4,
I agree with you in that the temperature limits between ASME and API 579 are somewhat similar.
In ASME, it clearly states the criteria on which these limits were specified (0.01%/1,000hr or 100,000 minimum rupture life).
API 579, assessment level 1, specifies a maximum damage of 25%...
Dear,
I was studying the API 571 about damage mechanisms and specifically, Creep & Stress Rupture. One thing that caught my attention was Table 4-3 "Threshold Temperatures for Creep". In this table, different materials are listed with corresponding minimum temperatures at which creep becomes a...
