Do you mean manufacturer shall heat plate sample to a temp between 780-980 Deg C and cool in still air and then subject those sample to mechanical testing. will it not be a repeat of normalizization which has been done already on the plate by plate manufacturer?
one of answer i got is that...
Hi,
I have plate MTC which is S275JR+N, N I guess stands for Normalizing. Fitting made out of these plate are certified to SA234 WPBW and all are hot formed between 780-980 Degree C and in some cases these fitting are stress relived (Above 19mm as required by B31.3).
Manufacturer has...
Hi,
Need your help to understand the specification requirment. API specification requiers Hydro test on pipes at pressure calcuated by equation 2St/D with S value equal to 60% of SMSY, test duration specified is 5 seconds. I trying to find out why the test duration is 5 seconds? Does...
Hi,
I have received A106 GR B seamless pipe for one of our project.
while checking the material test certificate of this pipes and relevant purchase specification I noticed that
- purchase spec specify Micro alloy steel shall not be used without prior approval.
- Nb and V contenet reported...
