So, whether 35N LT™ alloy, MP35N® alloy, or another high-performance alloy is the optimal material solution depends on your device’s specifications. That’s where our engineering and technical experts are here to support you in finding the right fit to advance your applications. Check out our full inventory of High-performance alloys.

MP35N® alloy has been a go-to high-performance alloy for years thanks to its strength, corrosion resistance, and formability. But what if you could push fatigue performance even further?

 

Enter our 35N LT™ alloy. Developed with our industry partners, 35N LT™ alloy is double-vacuum-melted and, like MP35N® alloy, contains the same ratios of cobalt, nickel, chromium, and molybdenum required by ASTM F562.

But there’s one key difference between the two: 35N LT™ alloy has less titanium (0.1%) compared with MP35N® alloy (1.0%), offering a more refined material profile for today’s precision-driven applications.

How so?

A lower percentage of titanium, combined with smaller and more consistently shaped particles, reduces stress concentrations within the material, improving high-cycle fatigue performance in demanding medical device applications.

See the image below from our research. At the top is a typical inclusion in MP35N® alloy, while the bottom shows a typical inclusion in 35N LT™ alloy.

Rotary beam wire fatigue testing demonstrated improved lifecycle performance when comparing 35N LT™ alloy to MP35N® alloy. Learn more about the fatigue characterization of these two alloys by reading this whitepaper: Fatigue behavior in ASTM F562 medical grade wire