🔹 Slightly softer than TiN (~2000 HV) but excels in corrosion resistance and low residual stress. Great for molding plastics, hydraulic components, and food processing equipment.

🔹 Harder and tougher than TiN (up to ~3500 HV), with a darker, charcoal-gray appearance. Ideal for high-speed machining and stamping tools.

Here’s a draft for an informative social media or blog post about — a term sometimes used in industrial, manufacturing, or surface coating contexts (e.g., hard coatings, thin-film technology). I’ve written it in a clear, educational style suitable for LinkedIn, a company blog, or an industry newsletter. Title: Understanding Hard Film Names: A Guide to Industrial Thin-Film Coatings