Hardox 400

APPLICATION	DIMENSIONS	STANDARDS
Wear resistant	Thickness: 2 – 130 mm W: maximum width 3350 mm L: limit length 14630 mm	EN 10029

Mechanical properties

Steel brand	Thickness (mm)	Hardness (HBW)	Typical value of yield strength (MPa), without guarantee
Rolled roll Hardox® 400	2.0 to 8.0	370 – 430	1100
Wide Rolled sheet Hardox® 400	4.0 – 130.0	370 – 430	1100

 

1) Brinell hardness (HBW) according to EN ISO 6506-1 on a surface milled 0.5 – 3 mm deep. At least one test sample from each melt and for every 40 tons. Deviations of the nominal thickness of the rolled sheet upon delivery from the thickness of the control sample, with which the hardness tests are carried out, do not exceed +/- 15 mm. For sheet, the Brinell hardness is determined in accordance with EN ISO 6506-1 on each individual heat treatment per roll. Hardness is measured on the milled surface 0.3 – 2 mm below the surface.

Hardox steel is hardened throughout its thickness. The hardness in the center is at least 90% of the guaranteed surface hardness.

Indicators of impact viscosity

Brand	min. Impact work (J) of a transverse specimen 10×10 mm with a V-notch
Hardox® 400 wide and rolled steel	45 J/-40 C

1) Impact viscosity is measured by agreement. With a thickness in the range of 6 – 11.9 mm, reduced Sharpie samples with a V-shaped notch are used. ISO EN 148 impact tests are performed for each melt and thickness group. Average of three trials.

Chemical composition (melting analysis)

 

Steel brand	C *) (max %)	Si *) (max %)	Mn *) (max %)	P (max %)	S (max %)
Wide and rolled rolled products	0.32	0.70	1.60	0.025	0.010

 

Cr *) (max %)	Ni *) (max %)	Mo *) (max %)	B *) (max %)
2.50	1.50	0.60	0.004

Steel is fine-grained. *) Special alloying additives.

Carbon equivalent (CET/CEV)

 

Thickness (mm)	Rolled rental 2.0 – 8.0	Broad-rolled 4.0 – 7.9	Broad sheet rolling 8.0 – 20.0	Broadsheet roll 20.1 – 32.0
Max.	0.28 (0.41)	0.26 (0.41)	0.31 (0.47)	0.32 (0.52)
Type.	0.26 (0.39)	0.24 (0.39)	0.28 (0.44)	0.29 (0.48)

 

Broad sheet rolling 32.1 – 45.0	Broad rolled steel</ span> 45.1 – 51.0	Broadsheet roll 51.1 – 80.0	Broad sheet rolling 80.1 – 130
0.33(0.67)	0.33(0.67)	0.43 (0.82)	0.43(0.92)
0.31(0.62)	0.31(0.62)	0.41 (0.65)	0.41(0.89)

Thickness

Thickness tolerances correspond to the guaranteed parameters of Hardox® steel. The guaranteed parameters of the Hardox® steel wide sheets meet the requirements of the EN 10 029 class A standard, and the rolled products meet ½ the requirements of the EN 10 051 standard.

 

Length and width

According to the SSAB range. Tolerances for flat sheets meet the standards of the SSAB company for sheets with uncut edges, which in turn meet the requirements of the EN 10029 standard. Tolerances for coils meet the requirements of the EN 10051 standard. Products with tighter tolerances can be supplied on request.

 

Form

The tolerances of broad-sheet products meet the requirements of the EN 10029 standard, and of the rolled products of the EN 10051 standard.

 

Flatness

Flat flatness tolerances correspond to the guaranteed parameters of Hardox® steel according to class D, which exceed the requirements of the EN 10 029 standard. Flatness tolerances of coiled products correspond to the guaranteed parameters of Hardox® steel according to class A, which are stricter than the tolerances according to the EN 10 standard.

 

Surface quality

In accordance with the requirements of the EN 10 163-2 standard for class A, subclass 1.

Flexible

Flexible properties of wide-rolled steel correspond to the guaranteed parameters of Hardox® steel when bent according to class E. Flexible properties of rolled products correspond to guaranteed parameters of Hardox® steel when bent according to class A.

Download materials

 

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