Do the overlay welds which are welded with austenitic chromium-nickel steel filler metal, have to satisfy the following Code requirements? (The following Code only states that NDE is required for Chromium Alloy Cladding or Lining)
7.4.8 EXAMINATION AND INSPECTION OF VESSELS WITH PROTECTIVE LININGS AND CLADDING
7.4.8.1 Examination of Chromium Alloy Cladding or Lining. The joints between chromium alloy cladding layers or liner sheets shall be examined for cracks as follows.
(b) Joints welded with austenitic chromium-nickel steel filler metal or non-air-hardening nickel-chromium- iron filler metal shall be given a radiographic or ultrasonic spot examination in accordance with the methods described in 7.5.3 and 7.5.4. For lined construction, at least one spot examination shall include a portion of the liner weld that contacts weld metal in the base plate. One spot examination shall be completed for every 15 m (50 ft) of weld.
Thanks and Best Regards,
7.4.8 EXAMINATION AND INSPECTION OF VESSELS WITH PROTECTIVE LININGS AND CLADDING
7.4.8.1 Examination of Chromium Alloy Cladding or Lining. The joints between chromium alloy cladding layers or liner sheets shall be examined for cracks as follows.
(b) Joints welded with austenitic chromium-nickel steel filler metal or non-air-hardening nickel-chromium- iron filler metal shall be given a radiographic or ultrasonic spot examination in accordance with the methods described in 7.5.3 and 7.5.4. For lined construction, at least one spot examination shall include a portion of the liner weld that contacts weld metal in the base plate. One spot examination shall be completed for every 15 m (50 ft) of weld.
Thanks and Best Regards,