Latham Steel, a reputable manufacturer and supplier located in Hamilton, New Zealand, specializes in high-quality Rockstar 400 sheets and plates. These products are crafted for exceptional abrasion resistance and long-lasting durability, making them ideal for heavy-duty industrial settings. Rockstar 400 is a quenched and tempered wear-resistant steel, celebrated for its impressive hardness, reliable toughness, and consistent performance even under continuous wear and impact. Latham Steel guarantees precise thickness control, a uniform surface finish, and strict compliance with international quality standards. With Rockstar 400, you can expect an extended service life, lower maintenance costs, and robust structural reliability, making it a go-to choice for equipment in mining, construction, material handling, and earthmoving industries.
Rockstar 400 steel is formulated with a blend of carbon, manganese, chromium, nickel, and molybdenum to enhance its hardness and wear resistance. It typically boasts a nominal hardness of around 400 HBW, achieved through advanced quenching and tempering techniques. This material delivers high tensile strength, impressive impact resistance, and excellent durability against cracking and deformation under heavy loads. Its refined microstructure ensures consistent hardness and stability throughout the plate. Even though it’s a wear-resistant grade, Rockstar 400 still offers good weldability and moderate formability when proper heating and fabrication methods are applied.
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.
Rockstar 400 sheets and plates find extensive use in industries that face severe abrasion, impact, and heavy mechanical wear. You’ll commonly see them in applications like dump truck bodies, excavator buckets, loader attachments, crusher liners, hoppers, industrial chutes, and conveyor systems. They’re also utilized in mining equipment, agricultural machinery, waste-handling systems, cutting edges, and various material-handling tools. The remarkable wear resistance of Rockstar 400 not only extends the life of equipment but also helps reduce maintenance downtime.
Â
Latham 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 Hamilton, New Zealand.
Copyright 2025 Latham Steel. All rights reserved
