SSAB customer case - Grizzly bars which does not break

End customer
Industry
Cement and concrete
Raw material processed
Other abrasive materials
Wear part
Equipment
Hammer crushers / Grizzly bars
Temperature
0 – 250 °C / 32 – 480 °F
Processed material size
10 – 300 mm / 0.4 – 12.0 "
Solution
New solution
Hardox 500
Thickness
75 mm
Service life
8 months
Key success factors
Increased crack resistance
Breaking eliminated
General information
Name of center
SSAB
Description of the case

Raw material processed:  Lime stone


Previous part material: Mn-steel
Material producer: Unknown
Service life: 3 - 4 months
Hardness:  50HRC and above
Impact toughness: Unknown
Thickness: 75mm
Other important properties: Tensile Strenght/ Weldability
Improvement needs: Service life time


New material: Hardox 500
Thickness: 75 mm
Service life: 6 – 8 months
Price of part or wear part: RM 80,000.00 / set
Other improved properties:  Thickness improved or upgrade to Hardox 550
Properties from production methods:
Oxy Cutting & Bending



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