• Overview
  • Salient Features
  • Applications
  • Manufacturing Range
  • Testing & Inspection
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Nickel Alloy Seamless Pipes

Ratnamani has a dedicated facility for manufacturing of Nickel Alloy Seamless Pipes.

The facility is equipped with 1750 MT capacity of Water Hydraulic Hot Extrusion Press. The Hot Extrusion Press is the core strength of the Company enabling to produce Seamless Pipes with closer dimensional tolerances, Special Chemistry and good surface finish. The Hot Extruded Mother Hollows are used for manufacturing Cold Finished Seamless Pipes using modern Draw Benches / Cold Pilger Mills and heat treated in Off-Line Annealing furnaces.

Salient Features

  • The Hot Extruded Mother Hollows are used for manufacturing Seamless Pipes
  • Ability to supply pipes with stringent NDT testing, special chemistry, closer dimensional tolerance, higher corrosion resistance etc
  • Supply condition
    • - Solution Annealed & Passivated
    • - Stabilization Heat Treatment for Stabilized Grades
    • - Single OR Double Random Length


  • Oil & Gas Exploration
  • Petrochemicals and Refineries
  • Fertilizer Plants
  • Chemical Industries
  • Thermal, Nuclear and Solar Power Plants
  • Atomic Energy
  • Desalination Plants
  • Aerospace
  • Defence
  • Pharmaceutical
  • Food and Dairy
  • Automobile
  • Sugar
  • Paper Industries
  • Marine
  • Cross Country Pipe Line for Gas & Water
  • Pipes for Engineering purpose

Manufacturing of Nickel Alloy Seamless Heat Exchanger Tubes

Size/Range Thickness Specification
1/8 NPS to 8 NPS Upto Sch.XXS SB 163, SB 167,SB 407, SB 423, SB 444
Grades : N06600, N06625, N08028, N08800, N08810, N08825 Various grades as per European Norms
*Sizes other than above can be manufactured as per requirement

Testing & Inspection

  • Mechanical Testing & Chemical Analysis
  • Fully equipped laboratory for Corrosion Testing, Chloride Contamination Testing, Bath Analysis Testing, Die Penetrant Test & Residual Stress Measurement
  • Micro Structure Examination / Analysis
  • Laboratory Spectrometer & Portable Spectrometer
  • Positive Material Identification [PMI] Tester
  • Hydro Testing –SS Straight & U-Tubes and CS Pipes
  • Air Under Water Testing – Straight Length upto 30 Meters
  • Ferrite Content & Surface Finish
  • Fibroscope – Inside surface checking of Tubes having outside diameter 4.7 MM and above
  • Surface Roughness Testing
  • Non Destructive Testing offered
    • - Eddy Current Testing
    • - Ultrasonic Testing with full body thickness measurement
    • - Real Time Digital Radiography Testing
    • - Conventional Film Radiography

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Quick Inquiry