Product Overview
Hot Rolled Pickled and Oiled (HRPO) Steel Coils are hot rolled steel coils that undergo a pickling process to remove the mill scale formed during hot rolling, followed by the application of a thin protective oil film.
The pickling process produces a cleaner metallic surface, while the oil coating helps reduce the risk of surface corrosion during normal storage and transportation. HRPO steel is commonly selected for fabrication processes such as cutting, bending, roll forming, welding, and painting, depending on the selected steel grade and application.
Key Features
Mill scale removed through the pickling process
Clean metallic surface suitable for subsequent fabrication
Temporary corrosion protection provided by a protective oil coating
Suitable for cutting, bending, roll forming, and welding, depending on the selected steel grade
Available in a range of dimensions to meet different application requirements
Specifications
|
Item |
Description |
|
Product |
Hot Rolled Pickled and Oiled Steel Coil |
|
Thickness |
According to product requirements |
|
Width |
According to product requirements |
|
Supply Form |
Coil |
|
Surface Condition |
Pickled and Oiled |
|
Edge Type |
Mill Edge (ME) or Slit Edge (SE) |
Standards
HRPO steel can be supplied in accordance with internationally recognized standards, depending on product availability and project requirements.
Typical standards include:
- ASTM
- EN
- JIS
- GB
Surface Condition
During the pickling process, most of the mill scale formed during hot rolling is removed, resulting in a cleaner metallic surface for subsequent fabrication.
After pickling, a thin layer of protective oil is applied to help reduce the risk of surface corrosion during storage and transportation. The oil coating is intended for temporary protection and is not designed as a permanent corrosion-resistant finish.
Typical Manufacturing Process
The typical manufacturing process of HRPO steel includes:
Steel Slab Hot Rolling Cooling Pickling Rinsing Drying Oil Coating Coiling
Typical Applications
HRPO steel is commonly used in applications where a clean hot rolled surface is preferred before fabrication.
Typical applications include:
Automotive components
Welded steel tubes and pipes
Roll-formed steel sections
Agricultural equipment
Construction equipment
Storage systems
Machine frames
General metal fabrication
Laser-cut components
Welded assemblies
Inspection
Inspection requirements may vary depending on the order specification.
Typical inspection items include:
- Thickness verification
- Width verification
- Surface inspection
- Material identification
- Visual inspection
Storage Recommendations
HRPO steel should be stored in a dry and well-ventilated environment.
The protective oil coating is intended to help reduce the risk of surface corrosion during normal storage and transportation. Prolonged exposure to moisture, standing water, or outdoor conditions may increase the risk of corrosion after the original packaging has been opened.
Ordering Information
To help ensure an accurate quotation, buyers typically provide the following information:
- Applicable product standard
- Thickness
- Width
- Edge type
- Surface condition
- Quantity
- Destination port
- Additional technical requirements (if applicable)
FAQ
