Hardox® Extreme
If you want extreme equipment performance, increased uptime and lower maintenance costs, Hardox® Extreme delivers. The world’s hardest wear plate, Hardox® Extreme is an abrasion-resistant steel with a Rockwell nominal hardness of 60 HRC or typical hardness of 650-700 HBW.
Mechanical Properties
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(HRC), not guaranteed
Chemical Composition (heat analysis)
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The steel is grain refined.
Carbon Equivalent CET(CEV)
Thickness
Tolerances according to Hardox® Thickness Guarantees.
Hardox® Guarantees meet the requirements of EN 10029 Class A, but offer more narrow tolerances.
Length and Width
According to SSAB’s dimensions program. Tolerances conforms to EN 10029 or to SSAB’s standard after agreement.
Shape
Tolerances according to EN 10029.
Flatness
Tolerances according to Hardox® Flatness Guarantee class D, which are more restrictive than EN 10029.
Surface Properties
According to EN 10163-2 Class A, Subclass 1.
Delivery Conditions
The delivery condition is Quenched. The plates are delivered with sheared or thermally cut edges. Untrimmed edges after agreement.
Fabrication and Other Recommendations
Welding, bending and machining
Recommendations can be found in SSABs brochures at www.hardox.com or consult Tech Support.
Hardox® Extreme is not intended for further heat treatment. It has obtained its mechanical properties by quenching and when necessary by means of subsequent tempering. The properties of the delivery condition cannot be retained after exposure to temperatures in excess of 150ºC.
Appropriate health and safety precautions must be taken when welding, cutting, grinding or otherwise working on this product. Grinding, especially of primer coated plates, may produce dust with a high particle concentration.
Contact Information
Hard-wearing steel for hard-working equipment
Make Hardox® Extreme your choice of steel for industrial knives and shear blades, shredders, crusher and mill hammers, liner plates and other hard-working parts. The type of steel and steel grade you use in extremely high wear conditions will determine the characteristics and performance of the wear part, including its cutting quality, strength and durability. For your equipment to work longer without breaking down, these parts need high strength plus wear and shock resistance.
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Why Hardox® Extreme?
- Comes already through-hardened
- Machineable and weldable
- Exceptionally clean
- Guaranteed properties
- Use as an alternative to overlay and hard facing
- When you are looking for a more competitive solution offering longer service life and lower maintenance costs in shredding or crushing applications
- Shorter delivery time compared to high-chromium white iron castings
- Increase productivity by laser-cutting only, instead of cutting and hardfacing
- Opens up new design potential for stronger, lighter equipment
Typical applications for Hardox® Extreme
In the waste and recycling industry, as
- Shredder knives in plastics recycling
- Shredder knives for electric waste, e.g. for milling electric waste such as cables and synthetic materials
- In glass recycling equipment
- Crusher hammers for dry wall or plasterboard
In the cement industry, as cavity walls of cement brick molds, offering a good service life and low maintenance of the molds.
In wood processing and forestry, as harvester head knives and knives for debarkers and wood chippers.
In mineral processing, Hardox® Extreme can be used as liner plates in crushers, feeder breakers and transfer chutes.
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A cut above the rest for cutting waste in glass recycling
Recycling creates some of the toughest operating environments for equipment and machinery components. Glass recycling in particular comes with many challenges. Hardox® Extreme in glass recycling equipment delivers extreme performance so you can keep your valuable recycling equipment up and running longer.
Choosing the right grade & welding recommendations
You can get quick access to hands-on support and recommendations from local engineers in your own language or in English. Our technical support team is backed up by SSAB’s worldwide network of sales offices and representatives. Whatever you build or process, we’ll help make sure your equipment delivers maximum productivity, service life and performance.
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Your specialists in wear parts made of Hardox® Extreme steel
Our worldwide network of Hardox Wearparts Centers can produce the parts you need in a wide range of thicknesses to give your equipment the extra edge. Whether you need to fragment minerals, abrasive materials, electronic scrap or unsorted waste, or if you need the right liner wear plate in chutes, feeders, crushers, bins or buckets, a local Wearparts Center can give you advice.
Find your nearest Hardox® wearparts centerCalculate wear life with WearCalc
The WearCalc app – free for Hardox® customers – makes tough decisions about choosing the right wear plate easy. It helps you determine the increase in service life of equipment for different Hardox® grades compared to mild steel. Calculations consider a range of abrasive materials, such as granite, clinker, coal, iron ore, limestone, sand, glass and household waste containing metal.
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