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Hardox® Extreme
Hardox® Extreme steel, exceptionally resistant to abrasive wear
With a nominal hardness of 60 on the Rockwell scale and a typical hardness of 650-700 on the Brinell scale, Hardox® Extreme wear-resistant sheet steel is the hardest in the world.
Abrasion-resistant Hardox® Extreme steel with a nominal hardness of 60 units on the Rockwell scale is intended for use in conditions that place very high demands on materials in terms of resistance to abrasive wear. Typical products of this steel are lining plates, etc.
Tests of Hardox® steel for impact toughness
Hardness is the property that underlies the excellent wear resistance of Hardox® steel sheets throughout their service life.
Size series
Hardox® Extreme steel is available in sheet thicknesses from 8 to 19 mm, widths up to 2000 mm and lengths up to 14,630 mm, with a preferred size of 2000 x 4000 mm, other sizes available on request. To familiarize yourself with the type sizes in more detail, see
Hardox® Extreme
| APPLICATION | DIMENSIONS | STANDARDS |
| Wear resistant |
Thickness: 8 – 19 mm W: maximum width 2000 mm L: limit length 14630 mm |
EN 10029 |
Mechanical properties
Mechanical properties
| Thickness (mm) | Typical Hardness Index (HRC) |
| 8.0 – 19.0 | 57- 63 |
Chemical composition
Chemical composition (melting analysis)
|
C *) (max %) |
Si *) (max %) |
Mn *) (max %) |
P (max %) |
S (max %) |
| 0.47 | 0.50 | 1.40 | 0.015 | 0.010 |
|
Cr *) (max %) |
Ni *) (max %) |
Mo *) (max %) |
B *) (max %) |
| 1.20 | 2.50 | 0.80 | 0.005 |
The steel is fine-grained.
Carbon equivalent (CET/CEV)
|
Thickness (mm) |
8.0 – 19.0 |
| Max. | 0.57 (0.69) |
| Typical CET Carbon Equivalent Value (CEV) | 0.55 (0.66) |
Tolerances
Thickness
Tolerances correspond to the guaranteed thickness parameters of Hardox steel. The guaranteed parameters of Hardox® steel meet the requirements of the EN 10 029 class A standard with stricter tolerances.
Length and width
According to the SSAB company range. Tolerances according to the standard EN 10029 or according to the standard of the company SSAB according to the agreement.
Form
Tolerances according to the EN 10029 standard.
Flatness
The tolerances correspond to the guaranteed flatness parameters of Hardox® steel according to class E, which exceed the requirements of the EN 10029 standard.
Surface quality
EN 10163-2 according to class A, subclass 1
Materials for download
Download materials
| TechSupport #65: Upgrading from Hardox® 450 to Hardox® 500 Tuf | ENG | |
| Hardox round bars for rod mills | ENG | RU |
| Hardox® 400 round bars – The shape of excellence | ENG | |
| Kelly Attachments relies on Hardox® round bars for quick couplers | ENG | |
| Dimension program Hardox® Extreme | ENG | |
| We have no wear and tear | RU | ENG |
| Techsupport #46: Magnetic arc blow” | ENG | |
| Product program – Hardox ®, Strenx ® and Toolox ® | RU | ENG |
| Product program Hardox®/Strenx®/Toolox® imperial | ENG | |
| Hardox® Onsite – Road building | ENG | |
| Hardox® Onsite – Recyling | ENG | |
| Hardox® Onsite – Quarry & open pit mining | ENG | |
| Hardox® Onsite – Underground mine | ENG | |
| Hardox® Onsite – Cement | ENG | |
| Hardox® Guaranteed steel tolerances | ENG | RU |
| Welding of Hardox®® | ENG | |
| Thermal cutting of Hardox® and Strenx® | ENG | RU |
| Bending of high strength steel – Strenx®, Hardox® | RU | ENG |
| TechSupport #29: Welding of cutting edge to bucket/ adapters to cutting edge – Hardox® | ENG | |
| Hardox Wearparts® your one stop wear shop | ENG | |
| Hardox® pipes and tubes – the inside story | ENG |
Hardox®, Armox®, Ramor®, Strenx®, Toolox®, Domex®, Duroxite® and SSAB Boron are registered trademarks of SSAB. Hard Steel Industry is an independent supplier of steel in these grades and is not an official SSAB dealer.