Rockstar 400 Stockist and Supplier

ROCKSTAR 400 Plates

Heavy Duty Abrasion & Wear Resistant Steel Plates

ROCKSTAR 400, Mumbai, India


Discover ROCKSTAR 400, from AM/NS India ( ArcelorMittal Nippon Steel India ) has a range of martensitic steels that excel in both hardness and low alloy content. This abrasion resistant steel attains its impressive hardness through a rigorous water quenching and tempering process. ROCKSTAR Steel plates come in three nominal hardness levels: 400, 450, and 500 BHN. These plates are carefully engineered to deliver exceptional hardness, toughness, formability, and weldability, making fabrication a breeze.

The ROCKSTAR 400 Plate is an incredibly strong and durable steel plate that is specifically designed to withstand abrasion. It is perfect for applications where durability and wear resistance are of utmost importance. This plate is made from top-quality materials and is well-known for its exceptional toughness and long-lasting performance, even in the harshest operating conditions. We are the best ROCKSTAR 400 stockist and supplier in Mumbai, India. It is part of the renowned Rockstar series, which is known for delivering superior performance in challenging environments.


ROCKSTAR 400 stockist and supplier

Grade Designation

Grade Name ROCKSTAR 400
Hardness Level 360 - 430 BHN

Chemical Composition (Ladle Analysis)

ROCKSTAR 400 Chemical Composition (%)
Plate C Si Mn P S Cr Ni Mo B CEV CET
Thickness mm Max % Max % Max % Max % Max % Max % Max % Max % Max % typv typv
6.0 – 20.0 0.16 0.70 1.60 0.025 0.010 0.50 0.25 0.25 0.004 0.45 0.28
21.0 – 32.0 0.18 0.70 1.60 0.025 0.010 1.00 0.25 0.25 0.004 0.48 0.29
32.1 – 50.0 0.15 0.70 1.60 0.025 0.010 1.40 0.50 0.60 0.004 0.57 0.33
50.1 – 75.0 0.18 0.70 1.60 0.025 0.010 1.40 0.50 0.60 0.004 0.65 0.40

Mechanical Properties

Grade and thickness Yield Strength (Min- Mpa) Tensile Strength (Min- Mpa) %Elongation(GL= 50mm) Charpy V-notch Impact toughness(Min)
ROCKSTAR 400 1000 1250 12 27 Joules min @ -40°C

Typical values

Dimensional Tolerances & Surface Quality

Thickness As per EN 10029- Class A/B/C/D as per requirements.
Length and Width As per EN 10029.
Flatness As per EN 10029 Class N steel type H
Surface Properties As per EN 10163-2. Class A Subclass 1
Plate Ultrasonic Testing As per EN 10160 SO.EO

Guidelines for Heat Treatment and Fabrication

Heat Treatment

ROCKSTAR 400 plates were hardened by quenching and, if necessary, repeated tempering. The hardness of Rockstar plates may be diminished when exposed to temperatures above 200°C. As a result, Rockstar plates are not meant for additional heat treatment.

Cold Forming

ROCKSTAR 400 plates with excellent internal steel cleanliness and uniformity are formable. The suggested minimum bending radius for plates up to 20 mm thick is specified in the tables below. On a case-by-case basis for plate thicknesses greater than 20 mm.

Welding & Cutting

Welding Method Lower carbon equivalent of ROCKSTAR plates results in good weldability. All conventional welding methods like manual electric welding, submerged arc welding, inert gas welding can be applied
Thermal Cutting Rockstar plates are compatible with all thens, cutting processes including one plasina, and laser Preheating or 100 to 150°C is recommended for plates thicker than 20 men (10 mm for Rockstar 5001. Excess prereating above 200 C may reduce the hardness of Rockstar

What is the hardness level for ROCKSTAR 400 Plates?

ROCKSTAR 400 Plates is a special kind of steel that is highly resistant to abrasion. It is commonly utilized in industries like mining and construction, where toughness and the ability to withstand wear are essential. The hardness of Rockstar 400 usually falls within the range of 360-430 HBW (Brinell Hardness Number). This level of hardness signifies its outstanding resistance to abrasion, making it perfect for environments where materials endure frequent impact and sliding abrasion.

Why you need to buy ROCKSTAR 400 Plates from Convergence steel?

ROCKSTAR 400 Plates are specialized steel plates intended for advanced wear applications and thus sourcing and buying of these plates should be from authentic approved sources. Convergence Steel Pvt Ltd is one of the leading and genuine Stockist based out of Mumbai for ROCKSTAR 400 steel plates the company is run by professionals with experience in steel industry and thus commit in the right service and quality.

ROCKSTAR 400, from AM/NS India ( ArcelorMittal Nippon Steel India ) , undergo rigorous testing to ensure quality, including positive material identification, intergranular corrosion, pitting resistance, hardness, mechanical, chemical, flattening, and flaring tests.

ROCKSTAR 400 plates price

Despite its exceptional performance and premium craftsmanship, the ROCKSTAR 400 Plate is reasonably priced. The ROCKSTAR 400 plate price is intended to provide outstanding value for money, making it an economically viable option for enterprises wishing to improve operational efficiency without sacrificing quality. For individuals looking for a dependable ROCKSTAR 400 plate stockist and supplier in Mumbai, India, the industry has recognized manufacturers committed to offering high-quality items.

Enquiry Form


Rockstar 400 steel, offered by Convergence Steel, is a high-strength, abrasion-resistant steel plate widely used in industries such as mining, construction, and material handling. Its robust properties make it ideal for applications requiring high wear resistance, such as excavator buckets, crushers, and wear liners.

Rockstar 400 steel from Convergence Steel provides superior abrasion resistance compared to standard steel grades. Its hardness and toughness ensure a longer service life, reducing maintenance and replacement costs in demanding environments.

Yes, Rockstar 400 steel plates supplied by Convergence Steel can be welded and fabricated using conventional methods. However, due to its high hardness, preheating and post-weld heat treatment are recommended to avoid cracking and ensure optimal performance.

Convergence Steel offers Rockstar 400 steel plates in various thicknesses ranging from 6mm to 100mm, and in multiple standard sizes. Custom sizes and cuts can also be arranged to meet specific project requirements.

Rockstar 400 steel from Convergence Steel excels in high-impact applications due to its excellent combination of hardness and toughness. This makes it an ideal choice for heavy-duty equipment and structures that experience significant wear and tear.

Choosing Rockstar 400 steel from Convergence Steel ensures access to high-quality, abrasion-resistant plates that enhance durability and performance in harsh conditions. Benefits include reduced downtime, lower maintenance costs, and extended equipment life.

Industries that commonly use Rockstar 400 steel plates from Convergence Steel include mining, construction, quarrying, and recycling. These sectors benefit from the steel’s high resistance to wear and tear, improving the longevity of their machinery and equipment.

To purchase Rockstar 400 steel plates, visit Convergence Steel’s website or contact their sales team directly. They provide detailed product information, pricing, and assistance to help you select the right steel plates for your specific needs.

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