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High-strength steel for heavy engineering SeverHard (18KhGNMFR)

SeverHard (18HGNMFR) – high-strength wear-resistant steel, specially designed for manufacturing equipment, parts and components operating in conditions of increased wear. Unique properties of SeverHard steel (18HGNMFR) make it possible to manufacture equipment with higher performance characteristics: less weight, ability to operate under higher loads, with increased service life.
Mining equipment, including:
  • Bunkers, trolleys
  • Buckets of bulldozers, graders, excavators
  • Clamshells, screens, crushers
  • Conveyor belts
  • Hydraulic hammers


  • High wear resistance due to alloying;
  • Combination of high strength and cold resistance down to -40 oС.


Hardness, НВ340430**
Thickness*, mm8,0050,00***
Yield strength*, MPa9501150
Ultimate strength, MPa10501500
Cold resistance KCV (-40 oC), J / cm²not less than 30
Elongation min, %11**** ​
* The full range of dimensions is specified, specific dimensions shall be agreed when ordering ** In the process of mastering, hardness – up to 500 HB *** In the process of mastering, thickness – up to 50 mm **** By agreement, it is allowed to decrease to 6%

How to buy?

Under the order

Evgeny Leonidovich Skorokhodov


Of availability

The fastest and most convenient way to purchase general-purpose metal products is to use the online store of PAO Severstal.
Online Store