How fast is the initial assessment?

The initial assessment is usually provided within 48 hours via email.

Do you carry out on-site inspections?

Yes, mobile on-site inspections are part of our consulting services.

What do the reports include?

All reports include a problem description, root cause analysis, results and specific recommendations for action.

Do you offer training?

Yes, practical workshops and training sessions are available.

Why do stainless steel surfaces corrode – despite the use of a corrosion-resistant material?

Iron based stainless steel alloys protects itself with an extremely thin chromium oxide enriched passive layer. If this protection layer is (locally) damaged, altered or attacked by aggressive media, discolouration, etc. uniform corrosion or even local corrosion effects like pitting corrosion or similar will occur. Areas with improper final surface treatment, welded joints, extremely rough surfaces, high rate of singular areas and assembly points containing strange particles like iron oxides are particularly at risk – often in combination with chlorine-containing environments. In regulated industries, such issues threaten not only the product’s appearance but also its approvals and product safety. NIROPLAN systematically analyses, prioritises risks and provides solutions and countermeasures.

Technical background concerning advanced corrosion analysis

Causes: Not correct material choice, improper or absence of correct surface treatment, poor design, chromium oxide-depleted zones at weld seams, foreign particles (e.g. iron abrasion or iron oxide particles), incompatible cleaning agents (e.g. those containing chloride), exposure to chloride containing environment, etc.
Consequences: Visual changes of the surface, such as typical discolouration, can lead to pitting corrosion, stress corrosion, etc. and a loss of functionality; in the sensitive pharmaceutical, biotech and food industry this can result in unexpected production downtime and legal liability issues
Testing methods: Profilometry (Ra/Rz), microscopy, SEM-EDX (Scanning Electron Microscopy combined with Energy-Dispersive X-ray Spectroscopy), chemical analysis, metallography, corrosion analysis CPT (Critical Pitting Temperature) and CPP (Critical Pitting Potential), XRF (X-Ray Fluorescence), Ferroxyl-Test acc. to ASTM A 380, etc.

How can NIROPLAN help?

NIROPLAN diagnoses the related (corrosion) system and the corrosion type and circumstances, is defining priorities and implements verifiable solutions for rehabilitation and fully controlled solutions for future processing.

We assess your issue based on your description and photos

Please use our form for this
"Describe the problem now".

Initial assessment (within less than 48 hours in central Europe)

Offer & scope of work

Executed: On-site and in our laboratory

Report preparation and follow-up including rehabilitation proposal

Describe the problem now

Case studies from industrial stainless steel processing

Root cause analysis, measures and measurable results from food, sensitive pharmaceutical and biotech production as well as ultrahigh pure gas application equipment.

Read case studies