Test Room
Test Room
Visual Inspections
a. Inspect and take measurements of the thickness of the pipes and ensure the numbers conforms to design specifications.
b. Inspect for indentations, pitting, cracks, uneven surfaces

Mechanical Inspection
a. Perform the impact resistance test to determine the impact strength
b. Test the tensile strength of the pipes to determine how the material will react to forces being applied in tension.
c. Perform the deflection temperature test to ensure the pipe sample deforms under a specified temperature and conforms to international standards

Packaging Inspections
a. Check packaging materials by comparing against approved samples and specifications.
b. Inspect necessary packaging marks including model number, quantity per packaging, name and place of business of distributor, country of origin, logos and marks from standards organizations, and stacking and handling marks.
c. Check the safety markings for clarity, size, color, conspicuousness, etc.

Destructive testing includes
  • Tensile tests
  • Impact tests
  • Bend tests
  • Hardness tests
  • Intercrystalline corrosion test
  • Pitting corrosion test
  • Metallurgical tests
Non-destructive testing includes
  • Eddy current testing
  • Hydro testing
  • X-ray testing
  • Ultrasonic testing
  • Positive material indentification testing

Know more about this product price, catalogue, mill test certificate,  please inquiry to: sales@nan-steel.com



Carbon steel pipe plant was established


Square tube mill put into use


Production base in Shandong & Tianji


Coating equipment introduction


Pipe fittings factory