Hardox 600

The extra hard and tough steel for extreme wear

At a nominal hardness of 600 HBW, Hardox 600 has a uniquely high impact toughness. Especially suited for extreme wear conditions, it can still be cut and welded, making it an excellent choice for high-performance applications. Hardox 600 is a Q&T martensitic wear plate for applications that demand high resistance to abrasion and wear. Delivering a hardness of 600 Brinell, it offers a unique combination of weldability, hardness and toughness. It brings a level of user-friendliness not found in many other steels designed for high wear resistance and eliminates the need to sacrifice wear resistance to enhance impact strength. Hardox 600 has been successfully used as linings in applications such as conveyor systems, wear strips, feeders, chutes and concrete mixers and in other high-wear equipment. In the recycling industry, it has been used in rotating hammers and in shredder knives. To obtain the best performance, attach your Hardox 600 wear part to a rigid support for limiting the flexing. Additional stresses from structural loads should also be kept at a low level.

Hardox 600
Mechanical Properties
Grade Thickness
Hardness 1) (HBW)
Hardox 600 sheet 3.0 - 5-0 570 - 640
Hardox 600 plate 6.0 - 51.0 570 - 640
Hardox 600 plate 51.1 - 65.0 550 - 640

1) Brinell hardness, HBW, according to EN ISO 6506-1, on a milled surface 0.5 – 3 mm below surface for plate. At least one test specimen per heat and 40 tons. The nominal material thickness will not deviate more than ± 15 mm from that of the test specimen. For sheet the Brinell hardness test´is according to EN ISO 6506-1 on each heat treatment individual/coil. Hardness is measured on a milled surface 0.3 - 2 mm below surface.

Hardox is through-hardened. Minimum core hardness is 90 % of the guaranteed minimum surface hardness.


More details are given in SSAB´s brochure 41-General product information Strenx, Hardox, Armox and Toolox-UK and Hardox Guarantees or on www.ssab.com.

Tolerances according to Hardox Thickness Guarantees. Hardox® Guarantees meets the requirements of EN 10 029 Class A, but offers more narrow
tolerances. For sheet, the guarantees meet the requirements of 1/2 EN 10 051.

Length and Width
According to SSAB’s dimensions program. Tolerances conforms to EN 10 029 or to SSAB’s standard after agreement. For sheet the tolerances are according to EN 10 051 or to SSAB´s standard after agreement.

Tolerances according to EN 10 029 for plate, EN 10 051 for sheet.

Tolerances according to Hardox Flatness Guarantee class E, which are more restrictive than EN 10 029 Class N. For sheet, the tolerances are
according to Hardox Flatness Guarantees Class A, which are more restrictive than EN 10 051.

Surface Properties
According to EN 10163-2 Class A Subclass 1.

Chemical Composition

Chemical Composition (heat analysis)

Grade C *)
(max %)
Si *)
(max %)
Mn *)
(max %)
P *)
(max %)
S *)
(max %)
Cr *)
(max %)
Ni *)
(max %)
Mo *)
(max %)
(max %)
Hardox 600 sheet 0.40 0.50 1.0 0.015 0.010 1.20 1.50 0.60 -
Hardox 600 plate 0.47 0.70 1.5 0.015 0.010 1.20 2.50 0.70 0.005

The steel is grain refined. *) Intentional alloying elements.

Carbon Equivalent CET(CEV)

Thickness Hardox® 600 sheet
3.0 - 5.0
Hardox® 600 plate
6.0 - 35.0
Hardox® 600 plate
35.1 - 65.0
Max CET(CEV) 0.52(0.72) 0.57(0.69) 0.61(0.87)
Typ CET(CEV) 0.48(0.64) 0.55(0.66) 0.59(0.85)

Carbon Equivalent CET(CEV)

Delivery Conditions

The delivery condition is Quenched. The plates are delivered with sheared or thermally cut edges, untrimmed mill edges available by agreement. Cut to length sheet are delivered with an as-rolled surface and mill edges as standard delivery condition.

Delivery requirements can be found in SSAB’s brochure 41-General product information Strenx, Hardox, Armox and Toolox-UK or at www.ssab.com.

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