Heat Treatment Specialist Offers:Liquid Nitriding, Gas Nitriding, Case Hardening, Direct Hardening, Stress Relieving and Blackening Services

Blackening or Black oxide or Auto Black


Not Satisfied with Traditional Blackening?
Try Our Special Blackening & Get Real Black Finish on components

Karbotherm is the first company in Delhi/NCR which can give Cast Iron Real Black Finish instead of other reddish shades. Karbotherm uses its own proprietary method of Blackening which is different from traditional blackening process, best surface and coating assured.
Our is electric fired with temperature controlled blackening process provide high quality surface finish with consistancy.

Hot Alkaline Black Oxide Process: Hot alkaline process is a formation of black oxide coating on the surface of the part. From the black oxide process, these essentially dimensionless coatings create very decorative, highly durable black finishes that leave an absorbing oxide layer for oils and waxes that will provide for enhanced corrosion protection.

Features and Benefits: Advantages of Karbotherm Blackening
Low Cost Blackening
Get Black finish even on Cast Iron which is our speciality
Longevity Tested with Salt Spray Test Excellent Corrosion Strength for long lasting rust free performance
Superior surface black finish and good lubrication characteristics
Black oxide improves anti-galling properties. In addition to this after-finish oil/wax decreases coefficient of friction of the black oxide coated parts. Slight improvement of corrosion protection and most cost effective

Please contact us for more information on this process. Tentative delivery time is 1 to 2 days, depend upon lot size and hardness requirement thus vary.


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