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ROC™

ROC™ wear resistant steel, available in three steel grades, is delivered in quenched condition. This ensures the steel achieves martensitic microstructure, which gives very high hardness. The strictly controlled chemical alloying and hardening process guarantees high wear resistance as well as good impact strength and processing.

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ROC™ wear resistant steel is delivered in quenched condition. During quenching, steel achieves martensitic microstructure, which gives very high hardness. The strictly controlled chemical alloying and hardening process guarantees high wear resistance as well as good impact strength and processing. ROC™ is available in three steel grades, which represent different typical Brinell hardness values – 400, 450 and 500 HBW.

Typical applications for ROC™ steels are those where high hardness and good impact strength can increase lifetime of wear parts. Typically, 400 HBW steel can work about twice as long as mild steel and 500 HBW steel can work even 3–3.5 times longer. ROC™ steels are widely used in: cement and metal industry, mines and quarries, agriculture, yellow goods, energy and recycling.

ROC™ steels can be welded, cut, bent and machined with all common methods. Due to high hardness, special requirements have to be taken into account. Depending on plate thickness it can be required to preheat plates before welding and thermal cutting. Bending should be performed with given tools dimensions and plates should be processed in room temperatures. Machining should be made with HSS + 8 % Co tools or for higher productivity with carbide tips tools.

Mechanical properties, typical values

   Hardness,
HBW*
Yield strength,
MPa 
Tensile strength,
MPa
Elongation A5,
Impact strength
KV -40°C, J 
ROC™ 400   400  1100  1250  12 30
ROC™ 450 450  1200  1400  10  30
ROC™ 500  500   1400  1600   8   20 

*Hardness range (delivery condition):
ROC™ 400, 360–440 HBW
ROC™ 450, 410–490 HBW
ROC™ 500, 460–540 HBW
Brinell hardness, HBW, according to EN ISO 6506-1, on a milled surface below surface typically 0.5–3 mm depending on plate thickness.

Dimensions, typical values

  Thickness, mm  Width/Length, mm 
ROC™ 400   3–150 2000/6000
ROC™ 450  3–50  2000/6000 
ROC™ 500 4–60  2000/6000 

*Special dimensions on demand.

ROC™ is a trademark of Abraservice Company.

ROC
ROC steel

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pdf 65 Kb
ROC 400
pdf 65 Kb
ROC 450
pdf 65 Kb
ROC 500
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