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Tubulars & Piping · Schmidt + Clemens

Reformer Furnace Tubes

Centralloy® G 4852 Micro R — the optimal material for catalytic reformer tubes, engineered for extreme conditions of 450–900°C and 30–45 bar by Schmidt + Clemens.

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Schmidt + Clemens
Centralloy® G 4852 Micro R
450–900°C
30–45 bar
Reformer Grade
Nb & Ti Alloy

Catalytic Reformer Tube Solutions

Centralloy® G 4852 Micro R

IPC is an authorized Schmidt + Clemens (S+C) supply partner for South America and the Caribbean. Schmidt + Clemens provides the optimal material — Centralloy® G 4852 Micro R — for reformer furnace tubes, backed by over 140 years of proven solutions in high-quality special alloys.

The radiant section of a steam methane reformer contains several hundred centrifugally cast tubes, commonly known as Reformer Tubes or Catalytic Tubes. Reaction gases are introduced at 450–650°C and pressures of 30–45 bar, conducted through catalyst-filled reformer tubes and heated to approximately 900°C. These extreme conditions make the tubes especially susceptible to cracking.

Schmidt + Clemens has continuously incorporated improvements into new catalytic tube material designs. The enhanced alloy Centralloy® G 4852 Micro R was first introduced and put into service in 2005. With the addition of carbide-forming elements such as niobium and titanium, S+C achieved excellent creep resistance and a considerable delay in the onset of creep in the material. This alloy also allows a reduction in the wall thickness of reformer tubes compared to conventional materials.

Schmidt + Clemens Centralloy® G 4852 Micro R Reformer Grade Nb & Ti Alloy Creep Resistant High Temperature

Key Features

  • Optimal for catalytic reformer tube applications
  • Operating temp: 450–650°C inlet / ~900°C peak
  • Pressure: 30–45 bar
  • Niobium & titanium carbide formers
  • Exceptional creep resistance
  • Reduced wall thickness vs conventional alloys
  • Proven in major plants worldwide since 2005

Ready to Upgrade Your Reformer Tubes?

Let our specialists evaluate your operating conditions and provide a solution with Centralloy® G 4852 Micro R.