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Blackening

Black oxide treatment of steel components with minimal dimensional change

A conversion coating that creates a thin black surface layer on steel components. PBS provides blackening services for a uniform black appearance with minimal dimensional change, ideal for precision parts. Components up to 1200 × 600 × 350 mm can be processed.

Dimensional stability

Corrosion protection

Non-reflective surface

Industrial applications

Max. dimensions of parts:
1200 x 650 x 350 mm

Surface treatment

Blackening (black oxide)

Properties

Layer Thickness: ~0,5-2,0 µm. Decorative finish with limited corrosion resistance. Black to blue-black surface finish.

Applications & Use

Defence, arms, optics industry - Firearm components, optical devices, tools and machine parts requiring a black appearance.

Additional services offered

Expert Consulting

Expert Consulting

  • Recommendation and selection of suitable technology
  • Component fixturing
  • Masking of holes and threads
  • Increased product value through surface optimization

Automated Production Line

  • Consistent results for every project
  • High capacity and time efficiency
  • Computer-controlled line with process cycle data logging for repeatable quality in both small batches and serial production
In-House Testing Laboratory

In-House Testing Laboratory

  • Non-destructive testing
  • Rapid prototyping
  • Corrosion control
  • Abrasion
  • Metallography
  • Material composition analysis (X-ray)

In-House Research and Development (R&D)

  • 40+ years of know-how and experience
  • High-precision components
  • Minimal scrap rate (0.4%)
Standards and Certifications

Standards and Certifications

  • NADCAP – Non-destructive testing (PT, RT)
  • ISO 9001, ISO 14001, AS 9100

Please contact us if you are interested in our services