Hot Rolled Pickled Coil (HRPC) Standards and Specifications

Overview

Hot Rolled Pickled Coil (HRPC) is a high-quality steel product that combines the strength of hot-rolled steel with a smooth, clean surface achieved through acid pickling.
To ensure consistent performance, safety, and reliability, HRPC production follows strict national and international standards. These standards define the chemical composition, mechanical properties, tolerances, and surface quality requirements of HRPC used in various industries such as construction, automotive manufacturing, shipbuilding, and general engineering.

For more product details and specifications of HRPC, please visit our product page: Hot Rolled Pickled Coil.

👇 Continue reading for the main standards applied in China, the U.S., the UK, and Japan.

🇨🇳 China – GB/T 700 Standard

Standard: GB/T 700 — Carbon Structural Steels

In China, HRPC is produced according to the Chinese National Standard GB/T 700, which specifies the requirements for carbon structural steels. This standard covers a wide range of grades, including Q195, Q215, Q235, Q275, and others.

Key Features of GB/T 700:

• Defines chemical composition and mechanical property requirements.

• Ensures consistent surface quality and dimensional accuracy.

• Suitable for general engineering, construction, and manufacturing applications.

• Promotes stable welding and forming performance.

Typical Grades:

• Q195 – low carbon steel for general use

• Q235 – most commonly used structural grade

• Q275 – higher strength and hardness

🇺🇸 United States – ASTM A1011 / A1011M Standard

Standard: ASTM A1011 / A1011M — Hot-Rolled Carbon, Structural, and High-Strength Low-Alloy Steel Sheet and Strip

In the United States, the ASTM A1011 / A1011M specification is the primary reference for Hot Rolled Pickled and Oiled Steel Coils (HRPO). It covers multiple grades and designations suitable for commercial, structural, and high-strength applications.

ASTM A1011 Grade Classifications:

• CS (Commercial Steel) – for general forming and moderate drawing

• DS / DDS (Drawing / Deep Drawing Steel) – for forming applications requiring higher ductility

• SS (Structural Steel) – for load-bearing applications

• HSLAS (High-Strength Low-Alloy Steel) – for increased strength with improved formability

• UHSS (Ultra-High Strength Steel) – for demanding structural uses

Benefits:

• Excellent surface finish after pickling and oiling.

• Consistent thickness and mechanical performance.

• Widely accepted for automotive, machinery, and infrastructure projects.

🇬🇧 United Kingdom – BS EN 10111:2008 Standard

Standard: BS EN 10111:2008 — Continuously Hot-Rolled Low Carbon Steel Sheet and Strip for Cold Forming

In the United Kingdom, HRPC follows BS EN 10111:2008, a European standard specifying low-carbon steel for cold forming applications.

Main Features:

• Defines chemical composition, thickness tolerances, and mechanical properties.

• Suitable for cold forming, bending, stamping, and welding processes.

• Ensures compatibility with European and ISO standards.

• Guarantees a uniform, pickled surface free of scale and oxides.

Applications:
Used in automotive manufacturing, construction materials, electrical components, and general engineering.

🇯🇵 Japan – JIS G3131 Standard

Standard: JIS G3131 — Hot-Rolled Mild Steel Plates, Sheets, and Strips

In Japan, JIS G3131 is the governing standard for HRPC, specifying hot-rolled mild steels used in forming and manufacturing processes.

JIS G3131 Grades:

• SPHC – General use

• SPHD – Drawing grade

• SPHE – Deep drawing grade

• SPHF – Extra deep drawing grade

Technical Highlights:

• Specifies dimensions, mass tolerances, and permissible variations.

• Ensures a smooth pickled surface ideal for coating or painting.

• Widely used in automotive body panels, appliances, and fabricated products.

Comparison of HRPC Standards

Conclusion

Hot Rolled Pickled Coil (HRPC) standards play a vital role in ensuring product reliability, mechanical performance, and processing consistency across global industries. Whether produced under GB/T 700, ASTM A1011, BS EN 10111, or JIS G3131, HRPC provides the foundation for high-quality steel components in construction, manufacturing, and engineering.

By adhering to these international standards and selecting HRPC from a reliable source such as Zhongtang Metal’s HR Pickled Coil, manufacturers can guarantee uniform surface quality, superior mechanical strength, and excellent formability, ensuring compatibility with global supply chains and end-user requirements.