Checmical Requiremetns of materials Question
Checmical Requiremetns of materials Question
(OP)
Hey everyone:
Just needed some clarificaiton. On the Secotion II, Part A material callouts. In the table with Checmical requirements for the various specficiations, what does it mean when there is a "..." under that checmical column??
Also, are single values listed the MAXIMIM amount of that element that is allowed under that specfiication? Is there any wiggle room above or below??
Thanks.
Jason
Just needed some clarificaiton. On the Secotion II, Part A material callouts. In the table with Checmical requirements for the various specficiations, what does it mean when there is a "..." under that checmical column??
Also, are single values listed the MAXIMIM amount of that element that is allowed under that specfiication? Is there any wiggle room above or below??
Thanks.
Jason





RE: Checmical Requiremetns of materials Question
RE: Checmical Requiremetns of materials Question
RE: Checmical Requiremetns of materials Question
Steve Jones
Materials & Corrosion Engineer
http://www.linkedin.com/pub/8/83b/b04
RE: Checmical Requiremetns of materials Question
RE: Checmical Requiremetns of materials Question
While PMI is useful for the Cr-Mo and stainless steels in refinery, it does not measure carbon, which is crucial to ID low-carbon grades (for just one example). Also, any element below 0.1% may or may not be present, and even if it is, the second digit is a random number.