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Rockstar 450 (Essar, India Make)

Rockstar 450 is a wear resistant quenched and tempered steel plate grade having an excellent combination of hardness, formability, weldability and toughness to meet fabrication requirements.

Rockstar 450 is used for fabrication of crushers, liners for truck beds, buckets, hoppers, chutes, excavators and conveyor troughs, concrete mixer drums, trash truck bottoms, bucket lips, street sweepers and dump trailers and many more.


Thickness Width
6 – 50 mm Up to 3500 mm;higher width and thickness can be provided on a case to case basis
Delivery Condition Quenched/Quenched and tempered. The plates are delivered with sheared or thermally cut edges. Untrimmed edges can also be delivered after agreement. Plates can be delivered in shot blasted and primer coated surface condition.

Chemical Composition (Ladle Analysis)

Plate Thickness MM %C Max %Mn Max %P Max %S Max %SI Max %Cr Max %Ni Max %Mo Max B Max CE Max PCM Max
6.0 – 20.0 0.52 0.34
21.0 – 40.0 0.30 1.60 0.025 0.010 0.70 1.00 0.60 0.60 0.040 0.60 0.40
41.0 – 50.0 0.65 0.50


Thickness Thickness tolerance as per EN 10029. Narrower tolerances can also be offered.
Length and Width Tolerances as per the requirements of EN 10029
Flatness Tolerances as per the requirements of EN 10029 Class N
Surface Properties Tolerances as per the requirements of EN 10163-2, Class A Subclass 1

Welding & Cutting

Welding Method All conventional welding methods like manual electric welding, submerged arc welding, inert gas welding
Preheating (Welding & Cutting) Maximum 200°C for thickness greater than 20 mm
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