Popular Navy LP prop consisting of a stainless steel plate with (3) welds. Both the plate material and weld filler material are 300 series stainless steel. One weld is 1/32 reinforcement and is contoured (ground); the second is 1/16 reinforcement in the as-welded condition; the third is an as-welded root weld in a 90° V-groove.
Plate contains (12) mirco-holes (NSTR-99) and (1) linear indication (EDM Notch). Micro-holes are 0.004 to 0.005 in diameter and 0.008 to 0.010 deep. Notch is typically 0.010-0.015 deep x 0.002-0.003 wide x 0.250 long. Plate is 1/2 thick x 5 x 7.
Plates can be customer or PH Tool supplied. Notches and holes of varying dimensions are also available. Certification report with as-built hole and notch dimensions, and a map of defect location is included.