InSitu Analysis of Pipeline Metallurgy - dnV

11. B.L. Bramfitt, “Structure/Property Relationships in Irons and Steels”, Metals Handbook DeskEdition, Second Edition, J.R. Davis, editor, 199812. K. Sharma, P.K. Singh, et al., “Application of Automated Ball Indentation for Property Measurementof Degraded Zr2.5Nb” Journal of Minerals & Materials Characterization & Engineering, Vol. 10,No.7, pp.661-669, 201113. J.R. Foulds, M. Wu, S. Srivastav, and C.W. Jewett, “Fracture and Tensile Properties of ASTMCross Comparison Exercise A 533B Steel by Small Punch Testing”, Small Speciman Testtechniques, ASTM STP 1329, W.R. Corwin, S.T. Rosinski, E. van Walle editiors, ASTM, 1998ATTACHMENT 1COLLECTION OF STEEL FILINGS FOR CHEMICAL ANALYSISMATERIALS / TOOLS NEEDEDSample containerCarbide burrElectric or pnuematic drill with 3/8 inch chuckTools to remove pipe coatingGrinder or drill equipped with coarse to medium grit sanding disks (example: 40-100 grit)File folder or similar stiff paper or cardboard approx. 12x 18 inches or larger (when opened flat)Duct tape or similarSafety glasses / gogglesMagnetPlastic wrap or plastic bagPROCEDURE1. Strip coating from pipe in area approximately 1 ft x 1 ft located at approximately the 1:00 to 3:00position2. Use sanding disks or grinder to remove pipe coating residue and any other contamination from areaapprox. 9 x 9 inches. Metal should be shiny with no specks of dirt, rust, oxide scale, paint, or otherforeign material present. For best results remove about 0.01 inches of thickness before starting thecollection of filings3. Open the file folder and tape one 12-inch side of file folder to bottom of cleaned area on the pipe.Run the tape along the entire edge of the folder. The open file folder should now be hanging downfrom the pipe.4. Fold the file folder in half to form a vee-shaped trough into which steel filings can fall5. Use two pieces of tape (one on each side) to bridge across the two sides of the vee so that whenyou let go of the file folder the “vee” shape still remains. The “loose” or unattached side of the filefolder will stand out from the pipe at about a 30-45 degree angle6. Hold the drill against the cleaned pipe so that the direction of burr rotation will push the steelshavings into the bottom of the vee-shaped file folder trough.7. Use a drill speed which allows you to control the direction and distance that the steel shavings arethrown. A burr RPM that is too fast will cause the chips to be flung past the collection trough.8. Check the burr occasionally for evidence of chipped cutting edges. If the burr is chipped thendiscard the filings, mount a new burr, and continue collecting filings9. Peel the tape off the pipe while being careful not to spill the filings10. Dump the filings into the sample container if no evidence of chipping is seen on the burr teeth.11. Reattach the file folder as in step 3-5 and continue to collect filings.