High Voltage Bridge Rectifier Diode Dilemma

I am building a 6kV power supply but I can't find diodes for the bridge rectifier, I have a 6kV, 260mA transformer.
For this transformer I need 10kV diodes but the only ones I could find have the Average Forward Rectified Current of 350mA.
Will these diodes conduct lower currents like 260mA?

Yes, high current ratings are generally better - and you certainly don't want the ratings only the same as the current demand.

Current ratings are for a maximum capacity, so something of a higher capacity will still be able to handle something lower. Just like current ratings for power supplies.

Voltage ratings are this way to for devices like transistors, transformers, diodes, resistors, capacitors, and inductors. Not all though (since we all know that most equipment requires a minimum voltage to run properly).

So you could use a higher voltage and higher current diode if you needed to, as long as it was able to meet the other operating specifications that you need.

Thanks for the fast reply, I will order today four diodes