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ArcelorMittal Europe – Long Products launches new crane rail grade

ArcelorMittal Europe – Long Products’ business division Rails & Special Sections is launching R340, a top wear performance crane rail grade for heavy loads, allowing customers to optimise their Life Cycle cost.

Designed in our ArcelorMittal Rail Excellence Center (Global R&D), R340 combines optimum process parameter with ad-hoc chemical composition. This new grade with higher mechanical properties and hardness was specifically designed for heavy loads.

Top Wear Performance – Increased service life

A specific wear test was designed to assess in-service performance. The results show that R340 is benchmark in wear resistance compared with other crane rail grades available in the market thanks to the customised microstructure.

Our new R340 grade, which is approved for welding, is now integrated in the ArcelorMittal crane rails technical specifications and is available on the entire crane and special rails range.

“It has been a challenging development due to the ambitious hardness target to be achieved by natural cooling, but with this grade we have gone beyond the limits of the air-cooled pearlitic rail steels. This was possible thanks to the great internal collaboration between the mill and the commercial and R&D teams, which allowed us to achieve good industrial results in record-time. Now we are aiming to go even further. There is already a strong interest from the market and its key players.” concludes Frédéric Goujon, product manager crane, grooved and light rails.

Mechanical properties

  • Hardness > 340 HB
  • Tensile strength > 1150 MPa
  • Yield strength > 600 MPa
  • Elongation > 7%


Webpage of Rails & Special Sections

Steel for port infrastructure