The DIN 'A' type rails (standard European profile) are rolled based on the DIN 536/1991 Specification. The 'A' rails, with their wide base, low center of gravity and wide web, are ideal for high side thrusts. They are available in several sizes from A45 to A150 whose numbers represent the width of the head in mm. In the past, these rails were offered in two types of steel: 700 and 900.
Recently, a progressive increase of the vertical loads of cranes on some special projects has led to the mounting requirement for a rail with a greater hardening surface. These rails are rolled in 1100 steel whose chemical composition and mechanical properties are not governed by the DIN 536/1991 Specification.