The type of application that the spring is to be used in will of course determine life expectancy, performance requirement and, depending on what the life expectancy might be, the type of material used. A typical application for a compression spring in an engine valve might involve 8,000 cycles per minute and the best material to guarantee this sort of performance is chrome silicon.
UK Enters ‘Golden Age of Nuclear’
The delay (nearly 8 years) in getting approval for the Rolls-Royce SMR is most worrying. Signifies a torpid and expensive system that is quite onerous...