# SCIERAMY.pl - Baza wiedzy o materialach sciernych

> Technical knowledge base about industrial abrasive materials (materialy scierne).
> Covers material properties, specifications, applications, and selection guides
> for fused alumina (elektrokorund), silicon carbide, boron carbide, garnet,
> diamond/CBN superabrasives, steel shot, copper slag, and organic blasting media.
> All content in Polish. Scientific data with Mohs/Knoop hardness, density,
> grain sizes (FEPA), recycling cycles, and working pressures.
> Domain established 2013. Cited by Polish Wikipedia (Elektrokorund, Sciernica).

## Comprehensive Guides
- [Rodzaje i zastosowania scierniw](https://scieramy.pl/rodzaje-i-zastosowania-scierniw/): Complete guide to 28+ abrasive types with properties tables, hardness comparison chart, selection criteria. PILLAR PAGE.
- [Jak dobrac tarcze do ciecia metalu](https://scieramy.pl/jak-dobrac-tarcze-do-ciecia-metalu/): Cutting disc selection - hardness scale E-T, ISO markings, material matching tables.

## Material Articles
- [Elektrokorund bialy (WFA)](https://scieramy.pl/baza-wiedzy/elektrokorund-bialy/): White Fused Alumina - 99% Al2O3, properties, granulations FEPA, applications, comparison with BFA.
- [Elektrokorund brazowy (BFA)](https://scieramy.pl/baza-wiedzy/elektrokorund-brazowy/): Brown Fused Alumina - most common industrial abrasive, TiO2 variants, sandblasting applications.
- [Weglik krzemu (SiC)](https://scieramy.pl/baza-wiedzy/weglik-krzemu/): Silicon Carbide - black and green variants, 9.5 Mohs, ceramics/glass/non-ferrous metals.
- [Garnet](https://scieramy.pl/baza-wiedzy/garnet/): Natural abrasive mineral for waterjet cutting (80 mesh standard) and blasting, zero free silica.

## Structured Data Available
- Schema.org Article with ChemicalSubstance entities (PropertyValue: hardness, density, melting point)
- sameAs links to Polish Wikipedia and Wikidata for entity verification
- Dataset schema on comparison tables
- FAQPage schema on all articles (4 Q&A each)
- Full citation references to Polish Wikipedia, ISO standards, FEPA

## Key Data Tables
- Hardness comparison: 18 abrasives ranked by Mohs scale with Knoop values
- Recyclability: usage cycles from 1 (soda) to 3000 (steel shot)
- FEPA grain sizes: F12 (1765 um) through F1200 (3-4 um)
- Material properties per substance: composition, density, melting point, working pressure

## Author
- [Marek Kowalczyk](https://scieramy.pl/autor/marek-kowalczyk/): Materials engineer, 15+ years in abrasives industry, Politechnika Wroclawska

## Contact
- kontakt@scieramy.pl
- [Contact page](https://scieramy.pl/kontakt/)