Duroxite® 500

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General Product Description

Typical Applications

Duroxite® 500 is suitable for use in the mining, power generation, cement, oil sand, steel production, waste handling, and pulp and paper industries. Some specific applications include:

Mining	Earthmoving equipment, Crushing equipment, Mining equipment, Shovel buckets, Skip liners, Slurry pumps, Conveyor chains, Feeder line plate, bucket lips, hardbanding
Cement	Augers, scraper blades, muller tires, mixer tires, brick dies, tamper feet, tillage tools, chisel plows
Power	Spoon section liner plates, Ash handling equipment liners
Agriculture	Cane knives and shredders
Oil sands	Surge bins, Feed chutes, Slurry pipes, Slurry pumps
Dredging	Slurry pipes

Mining

Earthmoving equipment, Crushing equipment, Mining equipment, Shovel buckets, Skip liners, Slurry pumps, Conveyor chains, Feeder line plate, bucket lips, hardbanding

Cement

Augers, scraper blades, muller tires, mixer tires, brick dies, tamper feet, tillage tools, chisel plows

Power

Spoon section liner plates, Ash handling equipment liners

Agriculture

Cane knives and shredders

Oil sands

Surge bins, Feed chutes, Slurry pipes, Slurry pumps

Dredging

Slurry pipes

For more information on applications see the Duroxite® Product brochure.

Standard Dimensions

Standard overlay thicknesses
Metric unit
3 mm on 6 mm

Standard overlay thicknesses

Metric unit

Standard overlay thicknesses

Metric unit

3 mm on 6 mm

Other plate sizes and custom thicknesses can be produced upon request.

Standard plate sizes

Metric unit	Imperial unit
1.2 m x 2.4 m	4' x 8'
1.5 m x 3.0 m	5' x 10'
1.8 m x 3.0 m	6' x 10'

Metric unit

1.2 m x 2.4 m

Imperial unit

4' x 8'

Metric unit

1.5 m x 3.0 m

Imperial unit

5' x 10'

Metric unit

1.8 m x 3.0 m

Imperial unit

6' x 10'

Other plate sizes and custom thicknesses can be produced upon request.

Mechanical Properties

	ASTM G65 – Procedure A weight loss¹⁾		Typical Bulk Surface Hardness
	Surface (g max)	75 % depth of overlay²⁾ (g max)	HRC	HV
Single pass	0.25	0.25	67 - 70	925 - 1075
Double passes	0.18	0.18	67 - 70	925 - 1075

Single pass

ASTM G65 – Procedure A weight loss¹⁾

Surface
(g max)

0.25

ASTM G65 – Procedure A weight loss¹⁾

75 % depth of overlay²⁾
(g max)

0.25

Typical Bulk Surface Hardness

HRC

67 - 70

Typical Bulk Surface Hardness

925 - 1075

Double passes

ASTM G65 – Procedure A weight loss¹⁾

Surface
(g max)

0.18

ASTM G65 – Procedure A weight loss¹⁾

75 % depth of overlay²⁾
(g max)

0.18

Typical Bulk Surface Hardness

HRC

67 - 70

Typical Bulk Surface Hardness

925 - 1075

Microstructure

Duroxite® 500 overlay contains an ultra-fine complex borocarbide phase down to approximately 500 nm in a ductile matrix. The typical volume fraction of borocarbides is maintained between 60 to 70% to form a uniform hard matrix. The SEM (Scanning Electron Microscopy) / EDS (Energy Dispersive Spectrometry) analysis of the Duroxite® 500 overlay confirms that the refined borocarbides are niobium-rich borocarbides, and chromium-rich borocarbides dispersed in an iron-based matrix. The ultra-fine borocarbides are approximately 200 times finer than the traditional chromium carbides.

Tolerances

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

Thickness

Tolerances according to Duroxite® Thickness Guarantee.

Duroxite® overall and overlay thickness tolerances can be guaranteed within ±10% of specified thickness.

Flatness

Plate flatness tolerance can be guaranteed as shown below over 1.5 m (5’) plate length for plate dimensions less than or equal to 1.5 m (5’) x 3.0 m (10’).

Standard overlay thicknesses	Plate flatness tolerance guaranteed over 1.5m (5'), Metric unit
Metric unit	1.5 m x 3.0 m
8 mm on 5 mm	12 mm
6 mm on 6 mm	12 mm
10 mm on 10 mm	6 mm

Standard overlay thicknesses

Metric unit

Standard overlay thicknesses

Metric unit

8 mm on 5 mm

Plate flatness tolerance guaranteed over 1.5m (5'),
Metric unit

1.5 m x 3.0 m

12 mm

Standard overlay thicknesses

Metric unit

Standard overlay thicknesses

Metric unit

6 mm on 6 mm

Plate flatness tolerance guaranteed over 1.5m (5'),
Metric unit

1.5 m x 3.0 m

12 mm

Standard overlay thicknesses

Metric unit

Standard overlay thicknesses

Metric unit

10 mm on 10 mm

Plate flatness tolerance guaranteed over 1.5m (5'),
Metric unit

1.5 m x 3.0 m

6 mm

For custom sizes, please consult your local sales representative or Hardox Wearparts center for flatness guarantees.

Delivery Conditions

Duroxite® 500 is supplied in an as-welded condition.

Fabrication and Other Recommendations

Welding, cutting, forming and machining

Recommendations can be found in the Duroxite® Product brochure, or consult your local technical support representative.

Bendability for Duroxite® overlay plate are according to Duroxite® Bending Guarantees.

Safety precautions

When welding or cutting Duroxite® products, gases and harmful fumes are produced that are chemically complex and difficult to classify. The major toxic component in the fumes is hexavalent chromium. The proper exhaust ventilation equipment and fume-extraction torches are recommended, as well as suitable protective clothing and respiratory protection for operators.