DID YOU KNOW

CREEP STRENGTH 
(Applies to HEAT RESISTANT STAINLESS STEELS)

  •       Creep is the phenomenon which occurs when a metal sags under its own weight due to gravity or some other external force

  •       This can be improved through having ‘blocks’ at  the grain boundaries, minimising the slipping of  grains past each other

  •       This can be achieved by increasing the carbon levels in the steel or adding small amounts of an alloy such as Ce

  •       Thus using 304 stainless steel at temperatures above 350°C necessitates the use of 304H (minimum carbon level of 0.05%) or 321