Corr Science

Hydrosteel 7000

Hydrosteel 7000 – for Fixed, Continuous Corrosion Monitoring

Hydrosteel 7000 is a fixed, totally non-intrusive corrosion monitoring device for the continuous measurement of hydrogen flux. The proven technology is ideal for use at highly critical sites within petrochemical and gas production, and petrochemical refining operations.

Hydrogen flux measurement relates directly to active sour and HF corrosion at <100 °C, and any acid corrosion (e.g. sulfide/napthenic acid) at higher temperatures.

The Hydrosteel 7000 corrosion monitor is designed for fixed monitoring on steel surfaces subject to corrosion scenarios including; sour gas wells, lines, storage facilities and treatment plants, amine and alkylation units, distillation columns, outlets and heat exchangers (NAC), and cracking unit overheads.


Fixed instrument for continuous hydrogen flux measurement
Exceptional performance without human interference
Can be applied to steel surface up to 500 °C
Intrinsically safe (approvals pending)
Waterproof to IP66 (pending) to protect from heavy and driven rainfall
Withstands harsh environments operating in ambient temperatures between -20 and 55 °C (-4 to 131 °F), in dust storms, and in environments containing volatile organics, hydrogen and humidity
Logs flux and steel temperature data every ten minutes

Applications include


The need for a fixed hydrogen flux monitor emerged from findings that corrosion is often highly episodic. Continuous monitoring is required at most high criticality sites, especially at times of high flux incidents which often occur during process upsets when inspection staff are not available.

Typical applications:

  • Corrosion control
  • Feedstock blending
  • HIC damage reduction and control
  • Sour, HF acid and high temperature corrosion monitoring
  • Risk based inspection of prospective hydrogen damage


Typical locations for monitoring include:

  • Sour gas lines
  • Amin treatment plants
  • HF alkylation units
  • Delsufurisation units
  • Distillation outlets and heat exchangers
  • Distillation and cracking unit overheads