Surface scale is the oxide layer formed on high-strength structural steel plates during hot rolling or heat treatment processes.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Hardness | 400-800 HV | |
| Porosity | 10-30% | |
| Thickness | 0.01-0.1 mm | |
| Adhesion Strength | Variable, typically 5-20 MPa | |
| Thermal Conductivity | 1-3 W/m·K |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
High-strength structural steel plate is a semi-finished industrial material produced through controlled hot-rolling processes to achieve specific mechanical properties.
Hot-rolled carbon steel plate is a semi-finished industrial material produced through continuous casting and hot rolling.
Semi-finished steel plate specifically engineered for metal forging and stamping operations
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Scale removal is critical because the oxide layer can interfere with welding quality, reduce paint adhesion, cause surface defects in finished products, and accelerate corrosion if not properly addressed.
Common methods include mechanical descaling (shot blasting, grinding), chemical pickling (acid baths), and high-pressure water jetting. The choice depends on plate thickness, scale characteristics, and subsequent processing requirements.
While the scale itself has minimal effect on bulk mechanical properties, improper scale removal can lead to surface defects that reduce fatigue resistance and promote stress concentration points.
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