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Multimet N155 Plate

Nath Metal Inds’ Multimet® N155 Palte is a nickel/chromium/cobalt based alloy that is essentially carbon-free.

Multimet N155 (UNS R30155) Plate is a nickel-based alloy used predominantly in applications requiring strength, high temperature, and oxidation resistance. Multimet N155 Plate can be treated to exponentially improve its temperature resistance and make it the perfect metal for tail pipes and cones, nozzles, and both turbine and afterburner components. Multimet N155 Plate is composed primarily of Nickel and Chromium and standard specifications include AMS 5532, AMS 5768 and more.

Multimet N155® Plate is a solid-solution-strengthened superalloy with excellent high temperature strength and good oxidation resistance. Multimet N155® Sheet has been used in aircraft and land-based turbine engine applications. Multimet N155® Plate can be hot and cold formed by different techniques, and is weldable by most standard methods.


  • Exceptionally high strength
  • Oxidation resistant through 1800°F
  • Meets MIL-S-46850 specifications
  • Extremely tough
  • Allows close machining with minimal distortion
  • Uniform, predictable shrinkage during heat treatment


  • Air & land based turbine engines
  • Aircraft tail cones & tail pipes
  • Aircraft exhaust manifolds
  • Aircraft combustion chambers
  • Afterburners
  • Buckets & bolts


  • UNS: R30155
  • Specifications: AMS 5532
  • International Specifications: Werkstoff Nr. 1.4974

Chemical Composition

Chemical Composition Limits
Weight % C Mn Si P S Cr Ni Co Mo W Nb N Fe
Multimet N155 0.08-0.16 1.00-2.00 1.00 max 0.040 max 0.030 max 20.00-22.50 19.00-21.00 18.50-21.00 2.50-3.50 2.00-3.00 0.75-1.25 0.10-0.20 Bal

Mechanical & Physical Properties

Material Form Ultimate Tensile Strength ksi Elongation in 2" (min) Hardness Hb
Multimet N155 Bar (AMS 5769)     156-217
Multimet N155 Sheet / Plate (AMS 5532) 110-140 40 -

Nath Metal Ind export products to countries like UAE, Bahrain, Italy, Indonesia, Malaysia, United States, Mexico, Chine, Brazil, Peru, Nigeria, Kuwait, Jordan, Dubai, Thailand (Bangkok), Venezuela, Iran, Germany, UK, Canada, Russia, Turkey, Australia, New Zealand, Sri Lanka, Vietnam, South Africa, Kazakhstan & Saudi Arabia.

HASTELLOY, HAYNES and C-22 are registered trade names of Haynes International, Inc., MONEL & INCONEL are registered trade names of INCO family of companies., NITRONIC is a registered trade name of Armco Inc., CARPENTER & 20Cb-3 are registered trade names of Carpenter Technology Corporation., FERRALIUM is a registered trade name of Langley Alloys, LTD.

Nickel Alloys Materials