Composite tool steel rolls

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Texture profile

Bimetallic composite tool steel composite casting process to produce a full flush, the outer layer having excellent thermal fatigue, thermal wear and thermal shock resistance of tool steel, the core having a high strength steel.

Kind of roll with a differential heat treatment process to obtain optimal organizational performance, the outer layer has a high, uniform hardness, in particular, has a very excellent resistance to thermal cracking performance.

Main application

• Work rolls for 2Hi roughing mills.
• Plate mill, two-roll mill Steckel roughing work rolls

Performance Characteristics

• It has excellent thermal fatigue resistance, with only slight contact with hot slab thermal cracking and crack propagation slow heat.
• Has excellent high temperature wear resistance, the machine for a long time, rolling volume.
• High roll neck strength, guaranteed to have higher security during the roll when large reduction rolling slab.

Microstructure

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Performance Indicators

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