Grade	H-300 Smooth Surface CCO Plate
Wear condition	Powder, slurry and sticky material conveying 粉料、浆料、易粘料输送
Typical hardness	HRC 55-63
Common thickness	6+4, 8+6, 10+8 and customized
Main applications	Cement powder, mineral powder, coal powder, bins, pipe lining

Smooth wear surface for better material flow

HALDEN H-300 Smooth Surface CCO Plate is designed for applications that need both wear resistance and smoother material flow. Compared with conventional rough-surface overlay plate, the smoother surface helps reduce material buildup in powder, slurry and fine-particle handling systems.

This grade is often selected for cement powder conveying, coal powder pipes, mineral powder chutes, silos, bins and other positions where low friction and smoother flow matter as much as abrasion resistance.

Key benefits

• Smoother surface helps reduce material buildup
• Suitable for powder, fine particles, slurry and sticky materials
• Useful for bins, chutes, silos and pipe lining applications
• Good option when rough overlay beads affect material flow

Typical specifications

Overlay type	Chromium carbide or custom alloy hardfacing layer
Base plate	Q235, Q345, A36 or equivalent weldable steel; special base plate available by project
Hardness	HRC 55-63
Plate format	Standard sheet, cut-to-size liner or fabricated wear component
Processing	Cutting, bending, rolling, drilling, countersunk holes, stud welding and welding assembly

Recommended applications

Cement powder handling For powder chutes, bins, silos and transfer points in cement plants.	Coal powder pipes For power plant and cement plant pipe lining positions.
Mineral powder systems For fine mineral powder conveying and storage equipment.	Silo and bin liners For reducing buildup and improving discharge stability.
Slurry handling For selected slurry transfer positions with abrasive fine particles.	Flow-sensitive liners For equipment where rough wear surfaces create blockage risk.

When to choose H-300

Condition	H-300 suitability	Recommendation
Ordinary abrasive material flow	Good fit if smooth flow is needed	Use H-100 if surface smoothness is not important.
Severe coarse ore abrasion	May be limited	Consider H-200 Severe Abrasion Plate.
Fine powder or sticky material	Good fit	Use H-300 for smoother flow and lower buildup risk.
High temperature wear area	Not the first choice	Consider H-400 High Temperature Plate.
Heavy impact at crusher zones	Not recommended	Consider H-500 Impact Resistant Plate.