Quality

QUALITY CONTROL

It is the stringent regime of quality controls and procedures established at Tube Tech that gives its products the critical advantage in the industry. Strict process requirements and continuous monitoring throughout the production process minimizes the range of possible deviations in the final output. The works have been equipped with reliable testing and measuring equipment for destructive and non destructive testing.

Destructive Tests:
Flaring Test

The 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 Test

The 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 Test
Flattening 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 Tests

All 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 Testing

For 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 Inspection

All products at Tube Tech are subjected to 100% visual inspection.

Tensile Test & Hardness Test

Quality
Quality has brought prosperity to Tube Tech. High product quality is an absolute priority for us and this constitutes a competitive advantage as it sets us apart from our competitors and hence makes a significant contribution towards securing and extending our market position. A determination to settle for nothing less than excellence is the foundation on which our company operates. Our stringent quality practices ensure that every product meets the industry's highest production standards. The products and services we offer not only meet the quality requirements of our customers but actually exceed them.

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
2.	"	Appearance	Visual	"
3.	Swaging	Swage degree & Length	Visual	"
4.	Drawing / Intermediate cutting	Dimensions	Micro Meter	"
5.	"	Surface / Length	Visual / Measuring Tape	"
6.	Intermediate Annealing	Draw ability	Visual	"
7.	Straightening	Dimensions	Micro Meter	"
8.	"	Straightness	Visual & Measurement	"
9.	Finish Cutting	Length	Measuring Tape	100%
10.	Deburring	Burrs on ends	Visual	100%
11.	Inspection	Dimensions	Micro Meter	100%
12.	"	Length	Measuring Tape	100%
13.	"	Surface	Visual	100%
14.	Annealing	Temperature	Thermo Couple	Lot Wise
15.	"	Speed	Speed Controller	Lot Wise
16.	Final Inspection & Testing	Dimensions	Micrometer & Measuring Tape	100%
17.	"	Leakage	Hydrostatic / Pneumatic Testing M/c	Random Sampling
18.	"	Physical & Mechanical Test	UTM, Hardness Tester Etc.	"
19.	Packing	Marking & Packing	As Per Customer Requirement	100%