HARDOXX 400/450/500/550

SRK International is a leading stockist and distributor of high-quality C45/EN8/EN19 Plates. As a trusted name in the industry, we are committed to providing reliable supply and exceptional service to our customers.

C45/EN8/EN19 Plates are made from carbon steel that offers excellent strength, toughness, and wear resistance. These plates are widely used in various industries, including automotive, manufacturing, and machinery.

The C45/EN8/EN19 Plates offer several key features:

High Strength and Toughness: These plates possess high tensile strength and toughness, making them suitable for applications that require robust and durable components. They can withstand heavy loads and provide reliable performance in demanding conditions.

Good Machinability: C45/EN8/EN19 Plates have good machinability, allowing for easy machining operations such as drilling, milling, and turning. This feature enables efficient fabrication and machining of components using C45/EN8/EN19 Plates.

Wear Resistance: These plates exhibit good wear resistance, making them suitable for applications that involve sliding or abrasive wear. They can withstand friction and impact, prolonging the lifespan of the components.

Wide Range of Sizes and Grades: SRK International offers a comprehensive range of C45/EN8/EN19 Plates in different sizes, thicknesses, and grades to meet the diverse needs of our customers. This wide selection ensures that you can find the right plate to suit your specific project requirements.

Reliable Supply: As a reputable stockist and distributor, SRK International ensures a consistent and reliable supply of C45/EN8/EN19 Plates. We maintain a well-stocked inventory and partner with trusted manufacturers to meet the immediate requirements of our customers.

Our dedicated team of professionals is committed to providing excellent customer service. We work closely with clients to understand their specific needs and offer tailored solutions. Whether you require C45/EN8/EN19 Plates for machinery components, structural applications, or general fabrication, we have the expertise to provide you with the right products for your projects.

Choose SRK International as your trusted partner for all your C45/EN8/EN19 Plate needs. Experience the difference of working with a company that values quality, reliability, and customer satisfaction. Contact us today to discuss your specific requirements and discover how we can fulfill them with our premium C45/EN8/EN19 Plates.

Hardox 400 is an abrasion-resistant steel with a nominal hardness of 400 HBW. Hardox 400 is a versatile wear-resistant steel. As a result of its high toughness, good bendability and weldability, this steel can be used in structures with moderate wear.


Hardox 450 is an abrasion-resistant steel with a nominal hardness of 450 HBW. Hardox 450 combines good bendability and weldability. The products can be used in many different components and structures that are subject to wear. Hardox 450, with an extra 50 Brinell hardness over our 400 grade, provides better dent and abrasion resistance as well as longer wear life, so you can achieve even greater savings.


The bendable, weldable and highly abrasion-resistant steel. Hardox 500 is a bendable and weldable abrasion-resistant steel with a nominal hardness of 500 HBW. Suitable for applications that demand higher wear resistance. Hardox 500 increases payload and service life while maintaining good processability and toughness.


Hardox 550, with a nominal hardness of 550 HBW and toughness close to Hardox 500, increases wear life but not at the expense of crack integrity

Dimension Range

Grade HARDOXX 400 HARDOXX 450 HARDOXX 500 HARDOXX 550
Thickness (in mm) 2- 130 MM 0.8-130 mm 2-103 mm 8-65 mm
Width (in mm) 1650-3550 1650-3550 1650-3550 2900

Chemical Composition (Heat Analysis)

Grade Plate thickness range in mm %C (Max) %Si (Max) %Mn (Max) %P (Max) %S (Max) %Cr (Max) %Ni (Max) %Mo (Max) %B (Max)
HARDOXX 400 2.0 - 8.0 0.32 0.70 1.60 0.025 0.010 2.50 1.50 0.60 0.004
4.0 - 130.0 0.32 0.70 1.60 0.025 0.010 2.50 1.50 0.60 0.004
HARDOXX 450 CR sheet 0.19 0.30 1.50 0.020 0.005 0.10 0.10 0.05 0.004
Sheet & plate 0.26 0.70 1.60 0.025 0.010 1.40 1.50 0.60 0.005
HARDOXX 500 CR sheet 0.27 0.50 1.60 0.025 0.010 1.20 0.25 0.25 0.005
Sheet & plate 0.3 0.40 1.30 0.020 0.010 2.20 2.00 0.40 0.005
HARDOXX 550 plate 0.44 0.5 1.3 0.020 0.010 1.40 1.40 0.60 0.004

Mechanical Properties

Grade HARDOXX 400 HARDOXX 450 HARDOXX 500 HARDOXX 550
Yield strength (MPa) 1100 1250 1400 -
Hardness 370-430 390-475 450-540 525 - 575
Longitudinal test, typical impact energy, Charpy V 10x10 mm test specimen 45 J / -40 °C 50 J / -40 °C 37 J / -40 °C 30 J / -40 °C

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Disclaimer​

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