Wheel nuts

[Petrus]

Found an informative wheel nut material comparison:


Grade 5 Alloy Steel:
Yield Strength: 92,000psi
Ultimate Tensile Strength: 120,000psi
Shear Strength: 72,000psi
Density: .284 lb/in3
 
7075 Aluminum:
Yield Strength: 73,000psi
Ultimate Tensile Strength: 83,000psi
Shear Strength: 48,000psi
Density: .102 lb/in3
 
Grade 5 6AL-4V Titanium:
Yield Strength: 128,000psi
Ultimate Tensile Strength: 138,000psi
Shear Strength: 79,800psi
Density: .160 lb/in3

Quik n dirty price comparison is that duralmin is 2-3 times steel and titanium at léast 10 times.
Imo titanium is not very suitable because of the galling. You nééd ti use a paste and tha reduces torque by 20-30%. In all it is a pita.

It has to be mentioned that the 7075 values are nót for un-treated 7075 but for the way stronger T6 tempered version. The T6 temper is usually achieved by homogenizing the cast 7075 at 450 °C for several hours, quenching, and then ageing at 120 °C for 24 hours. This yields the peak strength of the 7075 alloy.

[Petrus]

The just about lightest base steel nuts are the ones I have fitted:




The problem with them is  the poor fit of tools. They are proving to be rather low for fitting on alu rims. Being only 19 mm does not help. They look cool minimalistic though....

The 7075-T6 below, being wider and higher immediate makes clear that a socket will fit way better. Despite the larger dimensions they still weigh only just over half the steel nuts.

[J88TEO]

Cool looking nuts :-)

[Petrus]

Cool looking nuts :-)

They´d fit with the Enkei valve and cap ....