射线检验程序

5.0 TIMING OF NDT 检验时间

Welds in tubular on T, K or Y connections whose wall thickness is not smaller than 32mm and all through thickness locations, due to the possibility of delayed hydrogen cracking, shall be nondestructively examined no sooner than 48 hours after welding, unless otherwise

authorized by COMPANY. Other welds in High Strength Material (yield and above), shall be nondestructively examined no sooner than 24 hours after welding, unless otherwise

authorized by COMPANY. Padeye welds shall be nondestructively examined no sooner than 48 hours after welding.

除非业主另有批准，对于管状T,K,Y型连接管壁厚度大于32mm时，由于存在延时裂纹的可能性，无损检测应该在焊接完成后至少48小时后进行。除非业主另有批准，其他高强度材料（大于等于345MPa）焊缝的无损检验应该在焊接完成后至少24小时后进行。

RT Reports shall be available within 48 hours after inspection and before the subassembly proceeds to final assembly.

RT检验报告应在检验完成后48小时内完成，并且在下一步组对至最终装配前完成。

6.0 TESTING PROCEDURE 检验程序

6.1 RADIOGRAPHIC EQUIPMENT 射线设备

1) X-ray equipment: X射线机 MODEL OUTPUT KVP (MAX) MA FOCAL SPOT

SIZE (mm) MFR

Crawler

HR-28