The 90 lbs rail is made according to AREA (American Railway Engineering Association) standards. 90 lbs /90 ra rails are heavy rails and are often used for crane rails. It is very popular in the North American railway market.
Kingrail Parts offers 90 lbs rails and other types of rails for sale.
90 LBS Rail Specifications:
Type: Heavy Rail
Name: 90 RA rail, 90 LBS Rail, 90 ARA-A Rail
|Rail Type||Hight width (mm)||Base width (mm)||Head width (mm)||Web thickness (mm)||Weight Kg/m||Material|
|Rail Type||90 RA|
|Nominal Weight||90 lbs/yd (44.65kg/m)|
|Section Modulus in3||Head: 12.6 Base: 15.2|
|Moment of Inertia in4||38.7|