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Malleable Iron Tube

Suitable for the flow of water, steam, gas or other non-aggressive media.

Whiteheart malleable cast iron, grade W40-05 according to ISO5922/DIN-11692, and tested in accordance with ISO-49/DIN-2950.

Malleable Iron Tube

Dual Certified Tubes EN10255 & 10217-1

Certified for HVAC and Mechanical & Fire Protection industries within the UK.

**All tubes can be supplied with MTC (Mill Test Certificates), certifying that the tubes comply with the relevant standard.**

Tubes Available in:

  • Threaded and Plain Ended
  • Medium and Heavy Weight
  • Red & Galvanised finishes

Technical Specification:

  • Leak tightness test
  • Online NDT machines
  • Hydro static pressure testing to 50 bar.

Chemical Testing:

  • Complete chemical laboratory at the mill
  • Elco Meters
  • Hydrometers


  • Hot dipped galvanising/ zinc coating to EN10240 quality A.1
  • Quality checked hourly with Elco meters to ensure a 55-70 micron thickness across tube length


  • Fully killed steel
  • Tensile tested
  • Internal weld seam shall not have a height not exceeding 60% of the wall thickness