ROCKHARD 400/450/500

ROCKHARD 400/450/500- These are an advanced range of higher abrasion and wear resistant plates designed as per hardness level. Produced through cutting-edge Quenched or Quenched & tempered process. ROCKHARD Products possess an exceptional combination of higher hardness & toughness, optimally designed chemistry, coupled with superior dimensional tolerances which helps in ease of fabrication.

Dimension Range

Grade ROCKHARD 400 ROCKHARD 450 ROCKHARD 500
Thickness (in mm) 8-100* 8-100* 8-100*
Width (in mm) 1500-4800 1500-4800 1500-4800

Mechanical Properties

Grade ROCKHARD 400 ROCKHARD 450 ROCKHARD 500
Thickness (in mm) 360 BHN Min (Typical 360-450 BHN) 425 BHN Min (Typical 425-500 BHN) 470 BHN Min (Typical 470-550 BHN)
Grade YS in MPa (Min)*1 UTS in MPa(Min)*1 %EL (Min) at 50mm GL*1 Impact-/toughness Min*2
ROCKHARD 400 1100 1250 `12% 25J(avg), 20J(ind)J at (-40) °C
ROCKHARD 450 1150 1300 `12% 25J(avg), 20J(ind)J at (-40) °C
ROCKHARD 500 1250 1600 `10% 25J(avg), 20J(ind)J at (-40) °C

Chemical Composition (Heat Analysis)

Grade Plate thickness range in mm %C (Max) %Mn (Max) %P (Max) %S (Max) %Si (Max) %Cr (Max) %Ni (Max) %Mo (Max) B Max (ppm) %CEV (Max)
ROCKHARD 400 8-100* 0.25 1.6 0.030 0.010 0.50 0.90 0.50 0.50 50ppm 0.63
ROCKHARD 450 8-100* 0.25 1.6 0.030 0.010 0.70 1.40 1.50 1.00 50ppm 0.66
ROCKHARD 500 8-100* 0.30 1.6 0.030 0.010 0.70 2.00 1.50 1.00 50ppm 0.75

Typical Achievement of Carbon Equivalent

Grade %CE(8mm to 40mm thickness) %CE (>40mm to 100mm thickness)
ROCKHARD 400 0.45%~0.48%** 0.55% ~0.60%**
ROCKHARD 450 0.52%~0.60%** 0.60%~0.63%**
ROCKHARD 500 0.60%~0.63%** 0.65%~0.75%**

Market Area

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  • e250br sheets in Tamil Nadu
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  • oiled steel plots in Tamil Nadu
  • hot rolled sheets in Tamil Nadu
  • cold rolled close annealed sheets in Tamil Nadu
  • hot rolled pickled plates in Tamil Nadu
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  • cold rolled sheets in Tamil Nadu
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  • hot rolled plates in Tamil Nadu
Disclaimer

Trademark Notice: – Please be advised that this website is for promotional purposes only and some of the names used on our website are trade names and/or trademarks of specific manufacturers, and SRK INTERNATIONAL is not affiliated with any manufacturer(s). We want to clarify that the supplies we provide are made to meet customer specifications from any of the available source(s). The use of trade names or trademarks has been done solely for reference purpose and to help customers identify products consistent with the listed specifications.

Please note that the trademark Products are owned by concerned companies only . We do not claim any ownership or association with these trademarks and they are used only for informational purposes.