Sr.No.	Process Operation	Quality Characteristics	Method Of Control
1	Raw Material (Strip)	1> Dimensions 2> Chemical analysis 3> Control of Slit which within specified limits  4> Surface	Actual measurement as per Std.  Analysis of all elements as per Std Testing as per various Std. Measurement of width, thickness & recording visual inspection.
2	Tube Mill (GTAW Type)	1> Weld Test, Flare Flanges, Flattering Reverse bend & Reverse Flattening. 2> Inspection of weld, seam 3> Dimensions 4> Surface	Testing as per ASTM specification & recording the result. One test for every 30 to 35 Mtrs. Visual inspection weld zone. O.D. , Thickness & Length. Check roller surface profile& finish.
3	Solutions Annealing (At Min. 1040  C) With continuous water quenching.	1> Temperature 2> Hardness 3> Micrometer	Automatic Relay Temp / Controller Adjusted to present level. Measurement of hardness as per Std. one Test / Lot / Heat
4	Straightening	Straightness OD Surface Finish	Adjust roller setting measure visual
5	Cutting	Square cut Length	Right angle to length, visual
6	Deburing	Burs removel On OD and ID Edges	Visual
7	Chemical Treatment a) Pickling b) Passivation c) Bath	Concentration Concentration Temperature	One Test / Bath Day One Test / Bath Day Temperature
8	Hydrostatic Pressure Test	Test Pressure	100 % Inspection at test pressure specified as per ASTM  Std.
9	Final Inspection	IGC Test Dimensions Surface Physical Testing Grade Check Product Analysis	As per standard 100 % inspection of Dimensions as specified. Visual Inspection for surface defects, Physical Testing and Chemical analysis as per ASTM standards.
10	Marketing	Marking as per Std.	Check for proper marking
11	Packing	Seaworphy Packing / Wooden Cart	Check for packing, Quantity, shipping mark,