I |
DIMENSION CHECK:
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To ensure dimensional accuracy of OD, ID, Thickness, Length, Ovalityetc. |
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II |
SURFACE CHECK :
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To ensure that finished tubes are free from scale, pit marks rupture I.D. & O.D scores, roll marks, dent etc. |
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III |
CHEMICAL TEST: |
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To test chemical constituents & quality parameters of raw materials & finished products. |
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IV |
MECHANICAL TESTS: |
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1. |
HARDNESS TEST: |
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It is carried out by Rockwell I Twin Hardness Testers.(HRC, BHN Scale) |
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2. |
TENSILE TEST: |
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It is carried out by Electronic Digital, Universal Testing Machine with Graphical Presentation. |
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3. |
FLARING TEST: |
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To Check the ductility of material, end of tube should be flared successfully without developing cracks |
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4. |
FLATIENING TEST: |
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This test is conducted to check the strength by subjecting to extreme compression stress. If the test piece withstands the specified compression stress without cracking, it is determined to e acceptable.
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5. |
FLANGE TEST : |
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The photo shows a test piece subjected to Flange Test as per standard. |
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6. |
BEND TEST: |
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Pipes are bended as per specification at 90 Deg. without developing cracks. |
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V. |
NON DESTRUCTIVE lEST |
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1. |
HYDRO TEST : |
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(Up to 1500 bar)
100% Hydrostatic testing is carried by precision machine on all tubes. |
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2. |
EDDYCURRENTTEST: |
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To detect subsurface inhomogeneities from inside & outside of tubes. |
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3. |
ULTRASONICTEST: |
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For detection of subsurface flaws & imperfections. |
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4. |
AIR UNDER WATER (PNEUMATIC) : |
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This test is carried out on request.
It is carried out by immersing the tubes in water under compressed air to determine minor leakages. |
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| In addition to above, several other tests are carried out at the request of customers, such as micro structural examinations, grain size determination etc.
as per the specifications.
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