Quality Assurance Plan

Incoming Raw Material

Sr. No.	Process Description	Ref. Documents Standards	Characteristic to be checked	Samples quorum of size/inspection	Instrument equipment used for testing	Acceptance criteria
1	S. S. Coils/ Seamless Pipe (Mother Hallow)	Purchase Order/ Specification	• Dimension • T.C. Verification (Lab test Report) (if required) • Packing Condition • Weight • Defects if any	Sample / Heat	Vernier, Micrometer, Chemical, Analysis, Tensile Testing Machine (Brinell Rockwell) Hardness Testing Machine	Confirm to Specification 100%

Stage wise Inspection

Sr. No.	Process Description	Ref. Documents Standards	Characteristic to be checked	Samples quorum of size/inspection	Instrument equipment used for testing	Acceptance criteria
2	I) Welded Tube forming & Welding II) Seamless Cold Drawing	As per Work order/ Specification	Dimensions check Diameter (Ovality) x Length x Thickness • Weight • Defects if any	3 Samples from each Coil 1 Sample from each lot	Universal testing machine UIN40-T Make "UTS" Microscope, Vernier, Micrometer & Measuring Tape	Dimensions acceptance as per order Confirm to standard samples as per details
3	Annealing	Temperature as per ASTM Standard	• Temperature • Hardness • Cooling • Water Quenching	1 Sample per lot / 1 Sample per heat	Digital Graphic, Temperature Recorder, Digital Temperature Indicator & Temperature Controller, Metallurgical Microscope, Brine Rockwell Hardness Tester
4	Straightening	Straightening as per specification	Check straightening of Pipes & Tubes	First 2 pipes of each size lot	Roller Straightening Machine, Micrometer, Visual Observation	Straightening as per specification standard sample
5	End Facing Squaring & Beveling	Burr Free Squaring / Beveling with Proper V-Shape	100% Visual inspection	Abrasive Polishing as per standard sample	Confirm to specification / requirement	Straightening as per specification
6	Hydrostatic Testing	As per ASTM standard	Leakages	100%	Hydraulic Pressure Tester	No Leakage
7	Picking	As per required ASTM standard	• Scale removing inside • outside surface area	100%	Visual Observation requirement	Confirm to requirement
8	Final Inspection Physical / Chemical Testing	As per applicable standard	Visual Dimension, Physical & Chemical	100% (or) as per ASTM standard	Micrometer, Vernier, Universal Testing Machine, Molly Detector & Caron sampling at random spectra / wet method	Confirm to requirement
9	Marking (as per) customer requirement / standard marking	As per requirement	• Spell check • Details verification	100% Confirm on first two sample & continue	Inkjet machine / Electro Etching co-relation of heat no size Grade etc. with Test certificate	Confirm to requirement
10	Packing & Delivery	As per customer requirement	Packing quality Tightness of packing	100% confirm to requirement and release for	Box Crate, Polythene, Hessian Cloth	Packing confirm to customer requirement