SMC is proud to introduce Grade 5 (Ti-6Al-4V) Turnbuckles and Screws. As with all SMC products we want to make sure to offer the best performance at the best price. Most Titanium screws and turnbuckles offered in the RC car market are made using Grade 2 Titanium. Our gold turnbuckles and screws are PVD(Physical Vapor Deposition) coated which is more resistant than anodizing.
Titanium Grade 2 is an unalloyed titanium and what is considered a “commercially pure” titanium. Titanium Grade 2 is used commonly in applications that require welding because of its strong weldability properties. Titanium Grade 2 is light weight and highly corrosion resistant, but has much lower strength than alpha-beta or beta titanium alloys.
Titanium Grade 5 is the most commonly used Titanium worldwide and is the most commonly used alloy in the oilfield. Titanium Grade 5 is an alloyed titanium and is considered to be an alpha-beta alloy. Titanium Grade 5 is alloyed with 6% Aluminum and 4% Vanadium and is commonly known as Ti 6Al-4V.
Density: Grade 5 - 4.43g/cc Grade 2 - 4.51g/cc
Ultimate Tensile Strength: Grade 5 - 950MPa Grade 2 - 344MPa
So to summerize, our fasteners are over 2 times stronger and 2% lighter than the typical grade 2 Titanium used in RC. This means they will last longer and less likely to bend.