In the heart of Kinshasa, Yoane Steel stands as a trusted partner for the nation’s builders and creators. We take pride in supplying the robust Rockstar 400 sheet and plate, a product engineered to meet the demanding challenges of Congolese construction and industry. Sourced for reliability and performance, this high-strength steel is our commitment to providing local projects with a foundation of quality and durability, helping to shape the resilient infrastructure and ambitious structures rising across our vibrant city and beyond.
The Rockstar 400 is a high-strength, low-alloy steel known for its impressive toughness. Its composition is carefully balanced to deliver exceptional mechanical properties, including a minimum yield strength of 400 megapascals. This means it can withstand significant force and heavy loads without deforming. It also offers excellent formability, allowing it to be bent and shaped for various designs, and maintains good weldability, making it a versatile and dependable choice for demanding structural applications.
Thickness :Â 6mm to 100mm
Width :Â 1,500mm to 2,500mm
Length :Â 6,000mm to 12,000mm
Production :Â Hot-Rolled (HR) / Cold-Rolled (CR)
Heat Treatment :Â N, Q+T
Surface Paint :Â EP, PE, HDP, SMP, PVDF
| Plate Thickness | C | Mn | P | S | Si | Cr | Ni | Mo | B | CE | PCM |
|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | Max % | Max % | Max %Â Â Max %Â Â Max % | Max % | Max % | Max % | Max % | Max | Max | ||
| 6.0 – 20.0 | 0.16 | 1.60 | 0.025 | 0.010 | 0.70 | 0.50 | 0.25 | 0.25 | 0.0040 | 0.45 | 0.28 |
| 21.0 – 32.0 | 0.18 | 1.60 | 0.025 | 0.010 | 0.70 | 1.00 | 0.25 | 0.25 | 0.0040 | 0.48 | 0.29 |
| 32.1 – 50.0 | 0.22 | 1.60 | 0.025 | 0.010 | 0.70 | 1.40 | 0.50 | 0.60 | 0.0040 | 0.57 | 0.33 |
| 50.1 – 75.0 | 0.22 | 1.60 | 0.025 | 0.010 | 0.70 | 1.40 | 0.50 | 0.60 | 0.0040 | 0.65 | 0.40 |
| Hardness | 360-430 BHN (On a milled surface 0.5-2 mm below the plate surface) | |||
|---|---|---|---|---|
| Yield Strength (MPa) | Tensile Strength (MPa) | % Elongation | Impact at -30°C | |
| (L0=50 mm) | (In Joules) | |||
| Typical values for 20 mm | 1000 | 1250 | 12 | 40 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
The strength of Rockstar 400 makes it an ideal choice for a wide range of essential applications. It is commonly used in the construction of building frames, industrial warehouses, and robust support structures where integrity is non-negotiable. You’ll also find it forming the chassis of heavy trucks and trailers, in large-scale mining equipment, and as a key component in agricultural machinery. Essentially, wherever a project demands a material that can bear heavy loads and resist wear, Rockstar 400 delivers the necessary performance.
Yoane Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Kinshasa, Congo.
Copyright 2025 Yoane Steel. All rights reserved
