General information
Center name
SSAB
Country
Publish Date
July 26, 2021
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: 60mm
Other important properties: Tensile Strength/ Weldability
Improvement needs: Service life time
New material: Hardox® 500
Thickness: 60 mm
Service life: 6 – 8 months
Other improved properties: In case of breakage is the magnetism in a steel an advantage. An Mn-steel will not be catched by the magnet
Properties from production methods:
Oxy Cutting
-
Grizzly bars
-
0 – 250 °C / 32 – 480 °F
-
10 – 300 mm / 0.4 – 12.0 "
-
Limestone
Old solution
Old solution
Mn casting
Thickness
60 mm
Service life
4 months
New solution
New solution
Hardox® 500
Thickness
60 mm
Service life
8 months
Key success factors
Increased crack resistance
Breaking eliminated