PED - Impact test

[u236]

Dear All,

The requirement of 27 J at the min temperature is referred to the principle parts (shell and head) of the vessel or to all the parts of the vessel?

Thanking all,

Best Regards,

 

[r6155]

Impact testing can be waived, it depends on material, thickness, design temperature, etc.
Read the applicable code.

Regards

 

[XL83NL]

r6155, the OP is referring to the PED 2014/68/EU. This has nothing to do with a design code, although that may also apply requirements to impact testing.
u236, this is what the PED says;

7.5. Material characteristics
Unless other values are required in accordance with other criteria that shall be taken into account, a steel is considered as sufficiently ductile to satisfy point 4.1(a) if, in a tensile test carried out by a standard procedure, its elongation after rupture is no less than 14 % and its bending rupture energy measured on an ISO V test-piece is no less than 27 J, at a temperature not greater than 20 °C but not higher than the lowest scheduled operating temperature.

You might want to read guideline F-19, G-13, G-17, G-18, G-22 and G-28. G-18 will most likely answer your question.

Huub
- You never get what you expect, you only get what you inspect.

 

[r6155]

@ XL83NL
PED, design code, specification or whatever you like to call it, it's the same concept I said.

Regards

 

[XL83NL]

In no way the PED has the same character as a design code. It something completely different. There are some similarities, but very few.

Huub
- You never get what you expect, you only get what you inspect.