Hardide has a volume porosity of <0.04%, which is effectively pore-free, with no through porosity from 1μm of coating thickness.
It contains no binder-phase such as cobalt or nickel. This allows Hardide to protect substrates against corrosive and aggressive media including HCl, H2SO4, HF, H2S and molten metals. The coating has proven resistant to sulphide stress cracking and stress corrosion in H2S environments in independent NACE TM0177 tests.
Sulphide Stress Cracking Test NACE TM0177-2005 / ASTM G39
|Hydrochloric Acid||Resistant to attack|
|Sulphuric Acid||Resistant to attack|
|Nitric Acid||Resistant to attack|
|Aqua Regia - cold||Resistant to attack|
|Oxygen to 400 °C||Resistant to attack|
|Water to 600 °C||Resistant to attack|
|Hydrogen||Resistant to attack|
|Ammonia below 700 °C||Resistant to attack|
|CO to 800 °C||Resistant to attack|
|Chlorine Gas to 250 °C||Resistant to attack|
|Molten glass to 1700 °C||Resistant to attack|
Our technical datasheets contain specifications and key properties for our coatings range.
Research & Development
We maintain an active research and development programme that continues to keep Hardide Coatings at the forefront of advances in surface engineering technology