ASME SA-106, Grade C Impact

[rexgen]

Looking for Charpy Impact requirements for SA-106-Gr. C pipe for use on PED project. Searched internet but can't found. Any ideas.

 

[stanweld]

SA-106 has no provisions for impact testing. The design/construction Code does. If you are asking what impact test temperatures that the required absorbed energy values of the applicable Code can be met, they will vary from manufacturer to manufacturer and heat to heat.

 

[jbeckhou]

what is your temperature range? Could I also ask what are you building?

Petrotrim Services

 

[corvax]

According PED imapact energy must by 27 J in minimum working temperature, temperatur depend on medium temperature

 

[kalmari]

Normally when using ASME materials in Europe manufactures purchase the material with additional impact test having requirement as Corvax wrote aboved. How else the impact energy could be quaranteed if ASME or ASTM does not state any requirement. Additional testing for material coming from the mill is not problem but for stock material it needs some extra work and of course there is possibility that do not necessarily fulfil the requiremetns. Not experience of test results of grade C but for similar type forging A-105 (flanges) have appeared cases that 27J has been too high to reach.

 

[DSB123]

rexgen,
Just a point. ASME materials are not considered as complying with the PED requirements per se. You will need to submit a Particular Material Approval (PMA) submittal to a recognised NoBo for acceptance of use of ASME Materials. I personally think it's silly and a way that the NoBo's generate income but that's the way it is in the EU. The PED or PER only allow materials from Harmonised Standards to be used unless you gain a PMA approval for non-harmonised materials.

 

[stanweld]

rexgen,
I have never had a problem purchasing SA-106 C materials with the impact absobed energy requirements listed above at 0 C.

 

[GenB]

check materials which also comply to NACE some already offer the impact testing. the dual cert helps with your specs.

 

[pandithan]

check with B31.3 for acceptance values, as per PED, if thickness exceeds 30mm for +6 celsius,impact is required