Duroxite® 201 US

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General Product Description

Duroxite® 201 US is developed for severe wear and impact applications applying specially formulated abrasive materials on Hardox® 450 backing plate. The overlay material is composed of primary chromium-rich carbides and refined multiple-alloy complex carbides dispersed evenly in a ductile eutectic austenite matrix. The additional multi-alloy carbides are harder and finer than the co-existing chromium-rich carbides which interlock between large primary chromium-rich carbides in a matrix.

 

Key Benefits

  • Hardox® 450 backing withstands plastic deformation better due to its high yield strength flexing back after impact
  • Provides stronger support due to high hardness and better bonding properties between overlay and base steel
  • Better performance for impact situations than Duroxite® 200 US at elevated temperatures up to 350° C (660° F), but impact resistance is best at room temperature

Typical Applications

Duroxite® 201 US is widely used in many industries including mining, cement, and steel. Some specific applications include:

Mining

Screen plates, loader bucket liners, feeding systems for ball mills, loader bucket liners, bucket lip shrouds, bucket side shrouds, chutes, liner plates and skip liners

Cement

Cement furnace components, sinter plant parts, fan blades, mixer blades, gyratory mantles, coal and cement pulverizer rolls, raw material crushing components, molding panels

Power

Coal discharger chutes

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

Standard Dimensions

Standard overlay thicknesses
Single pass
Imperial unit
Standard overlay thicknesses
Single pass
Imperial unit
1/8" on 1/4"
Standard overlay thicknesses
Multiple Passes
Imperial unit
1/4" on 1/4"
Standard overlay thicknesses
Single pass
Imperial unit
Standard overlay thicknesses
Single pass
Imperial unit
Standard overlay thicknesses
Multiple Passes
Imperial unit
3/8" on 3/8"

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

Standard plate sizes

Imperial unit
4' x 8'
5' x 10'
6' x 10'

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


Mechanical Properties

Wear properties
Number of overlay passes
Wear properties
Number of overlay passes
Single pass
Wear properties
Guaranteed surface hardness 1)
(min HRC)
55
Wear properties
Guaranteed surface hardness 1)
(min HV)
590
Wear properties
Number of overlay passes
Wear properties
Number of overlay passes
Multiple passes
Wear properties
Guaranteed surface hardness 1)
(min HRC)
59
Wear properties
Guaranteed surface hardness 1)
(min HV)
675

1) Overlay surface hardness is measured flat on the machine just below its surface.

Tolerances

Thickness

Overlay thickness tolerance can be guaranteed within ±10% of specified thickness.

Flatness

Flatness is guaranteed over a 5 ft section of the plate. For plate sizes up to 5’ x 10’, the flatness tolerances follow the 5’ x 10’column of the tables. For wider plates (6’ x 10’or 8’ x 10’), the guarantees are as shown in the tables.
Standard overlay thicknesses
Imperial unit
Standard overlay thicknesses
Imperial unit
3/16" on 5/16"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
5' x 10'
1/2"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
6' x 10'
1 1/4"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
8' x 10'
1 1/2"
Standard overlay thicknesses
Imperial unit
Standard overlay thicknesses
Imperial unit
1/4" on 1/4"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
5' x 10'
1/2"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
6' x 10'
1 1/4"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
8' x 10'
1 1/2"
Standard overlay thicknesses
Imperial unit
Standard overlay thicknesses
Imperial unit
3/8" on 3/8"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
5' x 10'
1/4"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
6' x 10'
3/4"
Plate flatness tolerance guaranteed over 1.5m (5'),
Imperial unit
8' x 10'
1"

For custom sizes, please consult your local sales representative for flatness guarantees.

 

Delivery Conditions

Duroxite® 201 US is normally supplied in an as-welded condition, but can also be supplied in a ground condition upon request.

Fabrication and Other Recommendations

Welding, cutting, forming and machining

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

Appropriate health and safety precautions must be taken when bending, welding, cutting, grinding or otherwise working on the product.

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.