ISO DIS 22055
Switch and crossing rails
|Publication Date:||24 October 2018|
|ICS Code (Other iron and steel products):||77.140.99|
|ICS Code (Rails and railway components):||45.080|
This standard specifies switch and crossing rails that carry railway wheels as specified in ISO 5003. These are used in conjunction with flat bottom (vignole) railway rails. After switch and crossing rails are produced, in order to be ready for railway track use, secondary processing (forging, grinding and heat treatment etc) is carried out. This standard doesn't include secondary processing. Secondary processing is specified by another standards or agreement between manufacturer and purchaser
Sixteen pearlitic steel grades are specified covering a hardness range of 200 HBW to 440 HBW and include non-heat-treated carbon manganese steels, non-heat-treated alloy steels, heat-treated carbon manganese and heattreated low alloy steels.