Recent content by lt34

For round Ø500 mm material, S355J2 1- Hot formed 2- Arc furnace /EAF 3- Pot furnace/ LF 4- Vacuum degassig /VD 5- No UT warranty 6- No Cracking warranty

There is a conformity words " The products are forged". The raw material seems produced from molten iron. Additional low temperature impact test has been performed.

They said that they performed all the additional heat treatment and impact test and verify the final product. SA 350 refers melting process, however I did not see any melting record.

Hello, I would like to learn if S355JR material can be used as SA 350 flange? I saw some material test certificates and raw material certificates for flanges. The manufacturer purchased S355JR raw material and certified as SA 350 finished product. How it can be possible? Just mechanical...

Hello, To avoid any injury, crack due to bolt tensioning. This is required as per our company policy. Thanks.

I guess this is an engineering practice. I reviewed ASME B16.5, ASME B16.47 and Sec. VIII Div.1 as well. There are no such information. Thanks for your reply.

Hello, Thanks for your response. However, I ment the chamfer of the bolting holes. Please see the attached picture. There should be some standard code or engineering practice.

Hi everyone, I would like to know is there any section or part of code how to complete bolt hole finish ASME B16.5 flanges. Is there any standard or engineering practice I might refer 2x45 deg. chamfering to flange bolt holes. Thanks.