Hardox® HiTuf

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General Product Description

The extra-high tough steel for structural wear parts

Hardox® HiTuf is an abrasion-resistant plate with guaranteed impact toughness. With a nominal hardness of 350 HBW, it’s a good choice for structural wear parts like thick cutting edges, demolition tools and rippers.

Dimension Range

Mechanical Properties

Product
Product
Hardox® HiTuf
Thickness
(inmm)
1.575 - 6.29940.0 - 160.0
Hardness 1)
(HBW)
310 - 370
Typical yield strength
(ksiMPa), not guaranteed
123850

1) Brinell hardness, HBW, according to EN ISO 6506-1, on a milled surface 0.019 – 0.118" below surface. At least one test specimen per heat and 40 tonnes. The nominal thickness of supplied plates will not deviate more than +/- 0.590" from the thickness of the test specimen used for hardness testing. 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 0.012 - 0.079" below surface.

Hardox® wear plate is through-hardened. Minimum core hardness is 90 % of the guaranteed minimum hardness.

Impact Properties

Product
Product
Hardox® HiTuf
Transverse test, guaranteed impact energy,
Charpy V 0.393 x 0.393" test specimen 1)
29 ft-lbs / -40 °F40 J / -40 °C

1) Impact testing according to ISO EN 148 per heat and thickness group. Average of three tests. Single value minimum 70% of specified average.

Chemical Composition (heat analysis)

C *)
(max %)
C *)
(max %)
0.20
Si *)
(max %)
0.60
Mn*)
(max %)
1.60
P
(max %)
0.050
S
(max %)
0.020
Cr*)
(max %)
0.70
Ni*)
(max %)
2.0
Mo*)
(max %)
0.70
B*)
(max %)
0.005

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

Carbon Equivalent CET(CEV)

Thickness (inmm)
Thickness (inmm)
Max CET(CEV)
1.575 - 2.756040.0 - 70.0
0.38 (0.56)
2.760 - 6.29970.1 - 160.0
0.41 (0.67)
Thickness (inmm)
Thickness (inmm)
Typ CET(CEV)
1.575 - 2.756040.0 - 70.0
0.36 (0.55)
2.760 - 6.29970.1 - 160.0
0.39 (0.64)

Tolerances

More details are given in SSAB’s brochure Hardox® Guarantees.

Thickness

Tolerances according to Hardox® Thickness Guarantees.
Hardox® Guarantees meets the requirements of EN 10029 Class A, but offers more narrow tolerances.

Length and Width

According to SSAB’s dimension 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 Guarantees Class C, which are more restrictive than EN 10029 class N.

Surface Properties

According to EN 10163-2 Class A, Subclass 1.

Delivery Conditions

Delivery requirements can be found in SSAB’s brochure Hardox® Guarantees or www.ssab.com.

Fabrication and Other Recommendations

Welding, bending and machining

Recommendations can be found in SSABs brochures at www.hardox.com or consult Tech Support.