Hot rolled pickled and oil (HRPO) is a type of high-quality hot-rolled coil in the steel market and is popular and widely used. Currently, HRPO is used for many industries.
In the article below, MRS will provide information to help you better understand this material, as well as the production process, technical specifications and reputable supplier to choose the right quality product.
Hot rolled pickled and oil is used for many industries
Definition of hot rolled pickled and oil steel?
Hot rolled pickled and oil (HRPO) is a hot-rolled coil after going through the rust removal and oil coating process. Hot rolled coils are passed through a rust removal line to remove the rust layer on the steel surface. Next, it is cleaned and coated with a layer of oil to help protect the product surface.
Some technical specification of hot rolled pickled and oiled steel
Standard | SAE 1006, JIS G 3131 SPHC |
Sheet width | 650 ÷ 1.250 (mm) |
Thickness | 1,2 ÷ 4,0 (mm) |
Coil ID | 610 (± 10) (mm) |
Coil OD | ≤ 2.000 (mm) |
Coil weight | ≤ 25 (MT) |
Technical specification of hot rolled pickled and oil
Hot rolled pickled and oil production process
How to produce hot rolled pickled and oil coating is an issue that many people are interested in. Follow the section below to learn more about the production process of hot rolled pickled and oil steel.
- Step 1 - Rust Removal: The hot-rolled coil will be put through the rust removal line to remove the rust layer on the steel surface. During the descaling process, acid is used to remove the scale layer on the steel surface. Hot-rolled coil is soaked in a hydrogen chloride acid bath to remove rust and other impurities. The descaling process leaves the steel surface with a matte finish, after which the steel is rinsed with water to remove any remaining acids and other contaminants.
- Step 2 - Oiling: The final stage in the hot rolled pickled and oil process is oiling. Once descaled and cleaned, steel is fully exposed to the environment and is at risk of rapid corrosion. Therefore, after the hot-rolled coil has completely dried on the surface, the product is cleaned and coated with an additional layer of oil to help protect the surface. The oil layer helps prevent corrosion and oxidation. Once coated with oil, the steel can be stored for a long time without rusting. Based on how you plan to use the HRPO steel, you may have to remove the oil before manufacturing.
Pickling tanks are often used to remove impurities on steel surfaces
Advantages of hot rolled pickled and oil steel
Just like hot-rolled coils, however, hot rolled pickled and oil have been rust free and coated with oil, so they have many advantages compared to hot-rolled coils. The following section will tell you more about the production process of HRPO:
Ensuring product quality: Because it has gone through the rust removal process, hot rolled pickled and oil is well-preserved when stored. When used, the quality of steel is still guaranteed without affecting the product surface or the quality of subsequent coating layers.
Increase adhesion between the reinforcement and the coating: Because the surface has been cleaned, the adhesion of the reinforcement and the coating is also better.
Increase the aesthetics of the finished product: The steel surface has a certain amount of light reflection, so it is more aesthetically pleasing than regular hot-rolled coil.
HRPO has a shiny surface, helping to increase the aesthetics of the product
Application of hot rolled pickled and oil
Hot rolled pickled and oil is widely used in many fields, such as:
Construction industry: The product is used to produce construction products such as roofing, partitions and steel frame structures.
Automotive industry: To create parts such as car frames, bonnets and other parts.
Electronics industry: The product is used in the production of electronic devices, electrical conduits and other products in the electronics industry.
Shipbuilding industry: Products are used in the production of ships, aircraft carriers and works related to the shipbuilding industry.
Production of other types of steel: Hot rolled pickled and oil is often used to produce cold-rolled coils and steel pipes.
Production of motorbike and bicycle spare parts: Production of tires from steel with high hardness and durability.
HRPO is commonly used to produce CRC
MRS Group - Best place to buy hot rolled pickled and oil
With more than 12 years specializing in trading steel products. Up to now, MRS has become an address specializing in exporting steel products from Vietnam and is highly appreciated by many customers. All products are guaranteed to be 100% genuine, so consumers always have absolute confidence when purchasing at MRS Group.
Above is all the basic information you need to know about hot rolled pickled and oil. At MRS, we specialize in providing HRPO from famous brands such as Hoa Sen, Ton Dong A,... For more information and purchasing support, please contact us via WhatsApp (+84) 76 911 2358.
