Magnetec Inspection Inc. Home Subscribe Chronicle 1 Chronicle 2 Chronicle 3 Pitting in Brass Crude Overhead Condenser chronicle companion images PHOTO #1 High Heat Gradient Across Top Row of Tubes PHOTO #2 Pit Site Filled with Copper Copper Layout in Pit Site, Defect Depth 60% PHOTO #3 Pit Site Prior to Cooling Water Deposit PHOTO#4 Copper PHOTO #5 Failure near Tube Support PHOTO #6 Removed Sample Tube with Failure PHOTO #7 Tube Section from Sample Tube 3" away from Failure & Retained for Metallurgical Sampling PHOTO #8 PHOTO #9 PHOTO #10 PHOTO #11 PHOTO #12 PHOTO #13 PHOTO #14 INSPECTION PHOTOS right click to download images © 2028 by MII, Inc. Proudly created with Wix.com

Magnetec Inspection Inc. Home Subscribe Chronicle 1 Chronicle 2 Chronicle 3 Organic Acids/Salts in Atmospheric Crude Unit chronicle companion images IMAGE #2 I.D Condition of Tubing I.D Condition of Tubing IMAGE #3 Tube & Support Condition away from Corrosion Zone IMAGE #1 Bundle IMAGE #4 Isolated & Interconnected Pit Sites IMAGE #5 View of Top Periphery U-bends adjacent to Inlet Piping IMAGE #6 Isolated Deep Pitting Isolated Deep Pitting IMAGE #7 Severe Corrosion with Depths to 70% Location is 2nd Row into Bundle Matrix at U-bends Severe Corrosion IMAGE #8 Pitting at U-bends 40% Depth 40% Depth IMAGE #9 Top Half of Bundle adjacent to Shell Side Inlet Note General Corrosion to U-bends General Corrosion IMAGE #10 Light Etching near Center of Bundle IMAGE #11 Area of Most Severe Corrosion INSPECTION PHOTOS right click to download images © 2028 by MII, Inc. Proudly created with Wix.com

Magnetec Inspection Inc. Home Subscribe Chronicle 1 Chronicle 2 Chronicle 3 Overheating & Cooling chronicle companion images PHOTO #1 Bottom View of Heater (Filtered Air Inlet) PHOTO #2 View of Pipe Directly Adjacent to Inlet Hot Combustion Gasses PHOTO #3 Buckled Tube with Associated Failure PHOTO #4 Additional View PHOTO #5 Crack Failure to Overheat PHOTO #6 Additional View INSPECTION PHOTOS right click to download images © 2028 by MII, Inc. Proudly created with Wix.com

Magnetec Inspection Inc. Home Subscribe Chronicle 1 Chronicle 2 Chronicle 3 "FROM THE FIELD" Noteworthy Discovery On Site During Inspection ew@magnetec-inspection.com Tel: 815-802-1363 Cell: 847-542-2810 www.magnetecinspection.com © 2028 by MII, Inc. Proudly created with Wix.com

Magnetec Inspection Inc. Home Subscribe Chronicle 1 Chronicle 2 Chronicle 3 "FROM THE FIELD" THE EROSIVE POWER OF STEAM ew@magnetec-inspection.com Tel: 815-802-1363 Cell: 847-542-2810 www.magnetecinspection.com © 2028 by MII, Inc. Proudly created with Wix.com

Magnetec Inspection Inc. Home Subscribe Chronicle 1 Chronicle 2 Chronicle 3 "FROM THE FIELD" ew@magnetec-inspection.com Tel: 815-802-1363 Cell: 847-542-2810 www.magnetecinspection.com ORGANIC ACIDS/SALTS CORROSION in ATMOSPHERIC CRUDE UNIT © 2028 by MII, Inc. Proudly created with Wix.com

Magnetec Inspection Inc. Home Subscribe Chronicle 1 Chronicle 2 Chronicle 3 "FROM THE FIELD" Inspection Criteria for Percentage of Tube Inspection ew@magnetec-inspection.com Tel: 815-802-1363 Cell: 847-542-2810 www.magnetecinspection.com © 2028 by MII, Inc. Proudly created with Wix.com