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Grades 1-4 are pure titanium in a variety of structures and oxidisation levels.
Grade 5 is the first Alloy and contains 6% aluminium, 4% vanadium and a maxiumum of 0.25% iron. This makes it incredibly stiff (Bending resistance), hard (Scratch Resistance) and tough (How much energy it can absorb before deforming).
I don't think it is technically more brittle than G1-4, but when you bend it you damage the structure in such a way that links on the outside of the bend break and when you bend it back you snap it as you only have half the thickness of the sheet which is structurally intact.
Grade 5 is the first Alloy and contains 6% aluminium, 4% vanadium and a maxiumum of 0.25% iron. This makes it incredibly stiff (Bending resistance), hard (Scratch Resistance) and tough (How much energy it can absorb before deforming).
I don't think it is technically more brittle than G1-4, but when you bend it you damage the structure in such a way that links on the outside of the bend break and when you bend it back you snap it as you only have half the thickness of the sheet which is structurally intact.
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