Technical Discussions: Re: ASME Code Case 2235 Qualification blocks

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Re: ASME Code Case 2235 Qualification blocks
Posted by: Nigel Armstrong (PID_728), E-mail: Address, on September 10, 2008 at 11:17 :
In Reply to: Re: ASME Code Case 2235 Qualification blocks posted by : EC , E-mail: Address, on September 10, 2008 at 10:09 :
Hi EC
You should read the 2007 Edition of ASME V, Article 4 Mandatory Appendix III, TOFD of welds. Calibration block thickness and range qualified are clearly stated in III-434.
Regards
Nigel
----------- Start Original Message -----------
: : : : Dear peers,
: : : : I am drawing and producing calibration and qualification blocks over 4 years. If you want to know more detail contact with me via e-mail.
: : : : : Dear Friend, as per code case 2235-09 qualification block shall be prepared by welding or HIP and ahll contain 3 flaws( it maybe a diffect or notch/side drilled hole. the diffrence between both calibration and qualification block is, one made just in a plate and other in a welding, also usualy if u make a small thickness qualificatin block during welding u can keep some welding rod inside and weld. also you can keep a RT report for the block. iam sure flaw maybe a natural defect or artificial!!!! always iam making this kind of blocks
: : : : : Please let me know others comment. if iam not right please respond.
: : : : : mj
: : : : :
: : : : : : Could anyone tell me where can I have the UT qualification/demonstration blocks made to ASME Code case 2235? The flaws are supposed to be actual flaws generated by welding.
: : : : : : Thks!
: : : Unfortunately, you are not correct in your interpretation. While the original ASME CC 2235 was not clear on this issue, the intent was to use artificial cracks - not side drilled holes or notches - as the reflectors. In addition, the artificial cracks should follow the bevel to simulate Lack of Fusion defects or similar. ASME is currently working on clarifying this situation.
: : : Michael Moles
: : : Member, ASME Section V Ultrasonics Working Group
: : Thanks Michael we are only using code case 2235-09 or asme sec.V for the inspection . sure i did atleast 25 project using the same code and with a normal demo block. if something diffrent come out from ASME we will follow it
: : MJ
: Hello, we are working with TOFD inspection procedures following ASME V and VIII and we've a problem with the interpretation of the qualification block's thickness. Could somebody explain us what thickness we must choose for a range of inspection of 25 to 200 mm?
: thanks!!!!
------------ End Original Message ------------

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Re: ASME Code Case 2235 Qualification blocks David Mackintosh 18:54 Dec-12-2008 (0)

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----------- Start Original Message ----------- : Hi EC : You should read the 2007 Edition of ASME V, Article 4 Mandatory Appendix III, TOFD of welds. Calibration block thickness and range qualified are clearly stated in III-434. : Regards : Nigel : ----------- Start Original Message ----------- : : : : : Dear peers, : : : : : I am drawing and producing calibration and qualification blocks over 4 years. If you want to know more detail contact with me via e-mail. : : : : : : Dear Friend, as per code case 2235-09 qualification block shall be prepared by welding or HIP and ahll contain 3 flaws( it maybe a diffect or notch/side drilled hole. the diffrence between both calibration and qualification block is, one made just in a plate and other in a welding, also usualy if u make a small thickness qualificatin block during welding u can keep some welding rod inside and weld. also you can keep a RT report for the block. iam sure flaw maybe a natural defect or artificial!!!! always iam making this kind of blocks : : : : : : Please let me know others comment. if iam not right please respond. : : : : : : mj : : : : : : : : : : : : : Could anyone tell me where can I have the UT qualification/demonstration blocks made to ASME Code case 2235? The flaws are supposed to be actual flaws generated by welding. : : : : : : : Thks! : : : : Unfortunately, you are not correct in your interpretation. While the original ASME CC 2235 was not clear on this issue, the intent was to use artificial cracks - not side drilled holes or notches - as the reflectors. In addition, the artificial cracks should follow the bevel to simulate Lack of Fusion defects or similar. ASME is currently working on clarifying this situation. : : : : Michael Moles : : : : Member, ASME Section V Ultrasonics Working Group : : : Thanks Michael we are only using code case 2235-09 or asme sec.V for the inspection . sure i did atleast 25 project using the same code and with a normal demo block. if something diffrent come out from ASME we will follow it : : : MJ : : Hello, we are working with TOFD inspection procedures following ASME V and VIII and we've a problem with the interpretation of the qualification block's thickness. Could somebody explain us what thickness we must choose for a range of inspection of 25 to 200 mm? : : thanks!!!! ------------ End Original Message ------------

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