| Destructive Tests : Flaring TestThe flaring test serves to establish the   forming behavior of tubes or pipes which is expanded to a specific   degree. This flaring test is carried out in conformity with the code   requirements. The specimen to be tested is expanded in a press to the   degree specified. Defects which occur as result of this process are not   permissible.
 Hardness Test Samples from each lot are tested to ensure that the hardness of the tube is within permissible limits.
 Tensile TestThe tensile test specimen serves to   determine the strength and ductility characteristics i.e. yield   strength, tensile strength and elongation. Tensile tests are normally   carried out at room temperature according DIN, ASTM, BS, and other   common standards.
 Flattening TestFlattening test mainly serves to detect   microscopic internal and external flaws. It involves compressing a tube   section between two planes placed parallel to a predetermined distance.   Incipient cracks and internal or external defects which occur as result   of this process are not permissible.
 Non Destructive Tests: Hydrostatic TestsAll tubes and pipes produced at Tube Tech   are compulsorily subjected to 100% hydro testing. Hydrostatic Testing   can be carried out at pressures upto 120 kg /cm sq. The test pressure is   achieved using high pressure Triple Plunger pumps. If specified,   customers or their deputed inspection agencies can witness 100% hydro   testing at our plant.
 Pneumatic TestingFor thin wall tubes Pneumatic Testing (Air   under water) is done at up to 450 psi air pressure to check for any   leakages in the tube.
 Visual InspectionAll products at Tube Tech are subjected to 100% visual inspection.
 Quality Assurance  Quality Assurance System   implemented at Tube Tech covers all production stages right from the raw   material, re-drawing, annealing, till the final product is ready for   dispatch. The elements of the quality assurance system correspond to the   requirements of national and international standards, as well as   customer's own Quality Assurance requirements. The Quality control   department is independent of manufacturing shop. All tests are carried   out by trained quality personnel in compliance with the guidelines of   the Quality Assurance System. Depending upon the intended application   and technical delivery conditions or customer's specifications, a   variety of specific tests can be carried out to ensure that highest   quality standards are maintained. Also, at the end of this meticulously   uncompromising quality checks. 
 
                 Quality Assurance Plan 
                  
                    
                      
                        | Sr. No. | Process | Characteristics to be checked
 | Measuring Instruments | Quantum to be Checked  |  
                        | 1 | Raw Material / Mother Tube Inspection  | Dimensions | Micro Meter  | Random Sampling  |  
                        | Appearance | Visual | Random Sampling  |  
                        | 2. | Swaging | Swage degree & Length | Visual | Random Sampling |  
                        | 3 | Drawing / Intermediate Cutting | Dimensions | Micro Meter  | Random Sampling  |  
                        | Surface / Length | Visual / Measuring Tape | Random Sampling |  
                        | 4. | Intermediate Annealing | Draw ability | Visual  | Random Sampling |  
                        | 5 | Straightening | Dimensions | Micro Meter  | Random Sampling  |  
                        | Straightness | Visual & Measurement  | Random Sampling  |  
                        | 6 | Finish Cutting  | Length | Measuring Tape  | 100% |  
                        | 7 | Deburring  | Burrs on ends  | Visual  | 100% |  
                        | 8 | Inspection | Dimension | Micro Meter  | 100% |  
                        | Length | Measuring Tape  | 100% |  
                        | Surface | Visual | 100% |  
                        | 9 | Annealing | Temperature | Thermo Couple  | Lot Wise  |  
                        | Speed | Speed Controller  | Lot Wise  |  
                        | 10 | Final Inspection & Testing  | Dimensions | Micrometer & Measuring Tape  | 100% |  
                        | Leakage  | Hydrostatic / Pneumatic Testing M/c  | Random Sampling  |  
                        | Physical & Mechanical Test  | UTM, Hardness Tester Etc.  | Random Sampling  |  
                        | 11 | Packing | Marking & Packing  | As Per Customer Requirement  | 100% |  |