SurfTech 3012 Chromium Nitride (CrN) Coating
Chromium nitride. Dull silver finish.
Chromium nitride carries heavier loads than most nitrides at moderate temperature and flexes with the tool instead of chipping off it. It suits a die that has to survive impact as well as abrasion.
Chromium nitride
Chromium nitride is deposited as a hard, ductile layer with a dense structure that seals the substrate from the working environment. Compared with the titanium nitrides it gives up some surface hardness and returns toughness and corrosion resistance, which is the trade a forming tool usually wants.
- Ductile film that tolerates impact and flexing
- Strong barrier against corrosion and oxidation
- Resists galling on soft, sticky alloys
- Holds up at elevated die temperatures
Typical figures for CrN
- Chemistry
- Chromium nitride
- Appearance
- Dull silver
- Hardness
- 1,750 to 2,100 HV
- Coefficient of friction
- 0.45 to 0.55 dry against steel
- Maximum service temperature
- 1,300 °F / 700 °C
- Typical film thickness
- 1 to 4 µm
- Deposition temperature
- Below 200 °F
These are published typical ranges for the CrN material system. They describe the chemistry. The certified figure for your substrate, geometry and duty comes from the SurfTech data sheet, which is issued with the quote.
Typical applications
- Stamping, forming and drawing dies
- Injection and blow molds
- Bearing races and shafts
- Copper and aluminum forming
Substrate, hardness, the tolerance you have to hold and the surfaces that stay uncoated. SurfTech confirms whether SurfTech 3012 is the right code before the job is booked.
Other coatings in the range
Among the hardest thin films available, for abrasive contact.
View coating
A hard load bearing structure under a lubricating phase.
View coating
A dry solid lubricant with the lowest friction in the range.
View coating
Request a quote
Tell us the substrate, the duty and the way the part fails now. SurfTech comes back with the code, the thickness and the masking.
Call(440) 275-3356
Plant2937 Industrial Park Drive, Austinburg, OH 44010
DrawingsPDF, DXF, DWG, STEP, IGES, STL or ZIP