Eaton MTL

MTL Instruments Group

Gas Applications

Metal Heat Treatment.

Metal Heat Treatment

Heat treatment is a controlled process used to alter the microstructure of metals and alloys such as steel and aluminium to impart properties, which benefit the working life of a component, for example increased surface hardness, temperature resistance, ductility and strength. Heat treatment processes include case hardening, tempering, solution and ageing treatment, Specialty Stainless Steel Processes (S3P), annealing and normalising. MTL gas analysers offer a range of gas analysers, which are suitable for most types of atmospheres used in metal heat treatment processes.         

Some examples include:

  1. Inert gas (nitrogen/argon) - Typically requiring the monitoring of low levels (ppm) of oxygen. 
  2. Endo gas - Typically used to generate a reducing atmosphere where the oxygen content is measured in fractions of an atmosphere, partial pressure or oxygen potential. 
  3. Dissociated Ammonia - For high hydrogen content atmospheres to protect easily oxidised materials or to nitride them. For the hydrogen content any of the K (thermal conductivity) analysers can be calibrated in percentage hydrogen or percentage ammonia dissociation.
  4. Hydrogen bearing atmospheres (HNx) - Typically used to generate more highly reducing atmospheres such as are used for stainless steel, galvanised sheet etc. For the oxygen content (or dewpoint) any zirconia based oxygen analyser with a reducing atmosphere sensor and software can be used.

For further information, please refer to our range of Technical Notes below:

  • Technical Note 2 (Using zirconia oxygen analysers to measure the dew point of furnace atmospheres)
  • Technical Note 5 (Oxygen potential measurements in metal heat treatment processes)

Displaying products in Metal Heat Treatment

Z1030 - Zirconia Oxygen Analyser with Remote Sensor (Panel Mount)

Z1030 - Zirconia Oxygen Analyser with Remote Sensor (Panel Mount)

The Z1030 zirconia oxygen analyser measures a wide range of oxygen concentrations (from percentage levels…
Z130 - Rapid Response Zirconia Oxygen Analyzer (Rack Mount)

Z130 - Rapid Response Zirconia Oxygen Analyzer (Rack Mount)

The Z130 rapid response zirconia oxygen analyser is fully auto ranging from percentage levels to…
K1550 - Hydrogen, Helium, Argon and Xenon Gas Analyzer (Panel Mount)

K1550 - Hydrogen, Helium, Argon and Xenon Gas Analyzer (Panel Mount)

The ATEX certified K1550 accurately measures the changes of one gas constituent in gas mixtures…
K & KG6050 - Single or Dual Gas Analyser to measure Hydrogen, Helium and Argon

K & KG6050 - Single or Dual Gas Analyser to measure Hydrogen, Helium and Argon

The K & KG6050 measures oxygen (O2) and any one of the following gases (…
G1010 - Galvanic Oxygen Gas Analyzer (Panel Mount)

G1010 - Galvanic Oxygen Gas Analyzer (Panel Mount)

The G1010 oxygen analyzer uses a galvanic oxygen cell to measure oxygen over an exceptional…