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Duroxite

Duroxite™-Taking Durability to the Extreme

Duroxite™ overlay products from Hardox® Wearparts can add weeks, months, even years of trouble-free operations to your most extreme wear situations.

It is comprised of abrasion resistant materials deposited on top of mild steel or Hardox® wear plate to create an extremely wear resistant compound material. An optimal carbide composition ensures homogenous bonding between the base metal and overlay adding to the high wear resistance and long service life of Duroxite™.

Duroxite™ is manufactured by SSAB, and built on the company’s extensive metallurgical knowledge in the wear arena.

Duroxite™ overlay works especially well in sliding wear environments where small and hard materials are processed such as coal with high quartz content. It can withstand different types of wear such as abrasion, heat, metal-to-metal and erosion wear.

Hardox® Wearparts introduces Duroxite™ 300 Overlay Plate

 

For extreme sliding wear in both wet and dry abrasive environments

Click here to learn about its many applications

Duroxite™ fights wear, guaranteed

Duroxite™ comes with guarantees that are unique to the overlay market.
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Duroxite™ fights wear, guaranteed

Duroxite™ comes with guarantees that are unique for the overlay market. Duroxite™ overlay products are delivered with an overlay thickness guaranteed within +10%. When you order ¼” overlay on ¼” base plate, you are guaranteed an overlay thickness of ¼” within +10%. This is consistent throughout the plate and from plate to plate.  

Further, consistent wear properties are guaranteed throughout the plate down to 75% of the overlay thickness as opposed to just the surface of the overlay. The remaining 25% of overlay is the transition layer necessary to maintain good bonding to the base plate.

Duroxite guarantees

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Duroxite™ in fabrication

Duroxite™ is designed to be hard, without giving you a hard time in the workshop.
Excellent formability

Duroxite™ in fabrication

Duroxite weldingDuroxite™ is designed to be hard without giving you a hard time in the workshop. No special equipment is needed to install Duroxite™. Welding, bolting and stud welding are the common methods for installing Duroxite™ wear parts or overlay plate onto your equipment. For more information on installation, see Duroxite™ brochure.

One of Duroxite™’s key benefits is its excellent formability due to a staggered cracking pattern on the overlay surface. This simplifies bending of the plate and ensures a smooth flow of the processed materials

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Duroxite™ overview

The ultimate Duroxite™ product for your application depends on the material striking the surface and other factors.
Find out more
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Duroxite™ overview

The ultimate Duroxite™ product for your application depends on the material--whether rock, sand, gravel or other substance--striking or sliding along the surface of your wear part. It also depends on the angle and speed of impact as well as the operating temperature.

 

APPLICATION PRODUCT NAME DESCRIPTION
Sliding wear

Duroxite™ 100 Chromium carbide overlay (CCO) on mild steel
Duroxite™ 101 CCO on Hardox® 450 for improved impact resistance
Duroxite™ 100 Pipe CCO on mild steel pipe
Duroxite™ 100 Wire Chromium carbide hardfacing wire for components subject to sliding wear
Severe sliding wear
Duroxite™ 200 Complex carbides on mild steel provides longer service life and better wear resistance than CCO
Duroxite™ 201 Complex carbides on Hardox® 450 for improved impact resistance
Extreme sliding wear
Duroxite™ 300 Ultra fine complex borocarbides on mild steel providing significantly improved service life and extreme wear resistance in dry and wet abrasive environments
Metal-to-metal wear
Duroxite™ 400 Specially formulated hardfacing overlay pin designed to withstand high heat in metal-to-metal wear applications

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Proven performance

Duroxite™ is tough on wear wherever it’s applied for a wide range of industries and applications.
Customer benefits

Proven performance

Duroxite™ is tough on wear wherever it is applied. It is the natural choice for industries active in mining, energy, quarries, cement production and many other areas where abrasive materials require extremely hard surfaces. Here are some examples from different industries where our customers have seen extreme benefits from using Duroxite™ for their particular application.

Gold mine, asphalt examples plus the other applications from the previous brochure using the format in the brochure with photo and Industry, Application, Wear part, Purpose, Type of wear, Benefit.

PRODUCT 

 DESCRIPTION

APPLICATIONS 

OVERLAY PROPERTIES

SLIDING WEAR

DUROXITE™ 100
  • Multi-purpose overlay product with high quality and premium performance
  • Specially designed for severe abrasive environments
  • Appropriate to take moderate to low impact applications
  • Fabricated by depositing chromium-rich, abrasion-resistant materials on mild steel backing
  • The multiple-layer overlay is capable of maintaining full wear resistance up to 350ºC (660ºF)
 Chutes/hoppers, liners for truck beds, dozer blades,
shovel buckets, dragline buckets and excavators,
separator guide vanes, discharge cones for clinker storage
bins, chutes for sintering ore conveying, outlet ducts for
clinker grinding mills, receiving hoppers,
dredging pipes and pumps, suction pipelines, pump discharges,
fan blade/ housings, coke vibrating screen plates, coal
handling chutes, coal feeder liners, crusher screen plates,
classifier cones, journal liners, silo bunkers		 Bulk hardness:
Single pass 55 to 57 HRC
Double pass 56 to 59 HRC
Triple plus passes 58 to 63 HRC
Carbide hardness: 1700 HK
Volume fraction of primary carbides: 30-50%
ASTM G65-Procedure A weight loss: 0.18 g max.

DUROXITE™ 101
HARDOX® BASE PLATE
  • Provides improved resistance against impact and plastic deformation
  • Greater safety margin compared to mild steel backing overlay products
  • Employs stronger Hardox® base plate and chromium-rich overlay materials
 Coal discharger chutes, loader bucket liners, bucket lip shrouds,
bucket side shrouds		 Bulk hardness:
Single pass 55 to 57 HRC
Double pass 56 to 59 HRC
Triple pass 58 to 63 HRC
Carbide hardness: 1700 HK
Volume fraction of primary carbides: 30-50%
ASTM G65-Procedure A weight loss: 0.18 g max.

EXTREME WEAR

DUROXITE™ 200
  • Primarily designed for severe abrasive wear and impact up to 600°C (1100°F)
  • Provides up to 4 times longer service life than Duroxite™ 100 due to its high proportion of
    extremely hard multiple-alloy carbides
  • Comprised of specially formulated abrasive-resistant materials deposited on
    mild steel backing plate
 Cement furnace components, sinter plant parts, fan blades,
mixer blades, crews, gyratory mantles, coal and cement
pulverizer rolls and grinding, ore sintering,
crushing, riddling, blast furnace hoppers, throats and ovens		 Bulk hardness: 60 to 65 HRC
Carbide hardness: 2500-3000 HK
Volume fraction of primary carbides: 30-50%
ASTM G65-Procedure A weight loss: 0.12 g max.

DUROXITE™ 201
HARDOX® BASE PLATE
  • For severe wear and impact applications
  • Contains primary chromium carbides and refined multiple-alloy complex carbides deposited on
    strong Hardox® base plate
  • Provides higher impact resistance than Duroxite™ 200 at both room and elevated temperatures up to 350°C (660°F), but impact performance is best at room temperature
 Screen plates, loader bucket liners, feeding systems for  
ball mills, coal discharger chutes,
loader bucket liners, bucket lip shrouds, bucket side
shrouds, conveyor liners		 Bulk hardness: 60 to 65 HRC
Carbide hardness: 2500-3000 HK
Volume fraction of primary carbides: 30-50%
ASTM G65-Procedure A weight loss: 0.12 g max.
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Duroxite®,The latest in overlay Technology

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Hardox® Wearparts is the leading manufacturer of wear parts and wear services in the world. Contact your local partner today for more information about Duroxite™.

Hardox® Wearparts Centers

Duroxite™ The Latest in Overlay Technology

Duroxite™ can add weeks, months, even years of trouble-free operations to your most extreme wear situations.

Download brochure

Customer cases

Open pit copper mining

Service life increased
Customer case

Open pit copper mining

 

Application: Electric shovel

Wear part: Liner package with Duroxite™ plate for the most abrasive area

Purpose: Increase payload and service life

Type of wear: Sliding wear and some impact

Benefit: Service life increased by 56% with Duroxite™ liner compared to AR 600 liners

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Surface mining

Extended wear life compared to castings
Customer case

Surface mining

 

Application: Dragline, front shovel and back hoe buckets

Wear part: Weld-on lip shrouds and vertical jaw shrouds made from Duroxite™ 201

Purpose: Moves earth and minerals

Type of wear: Impact and abrasion

Benefits:

  • Custom fabricated to fit Hardox® base plate with solid double-pass Duroxite™ overlay
  • Eliminates loose fit common to castings
  • Eliminates downtime due to breakage frequently found with castings
  • Extended wear life compared to castings
  • Short lead times for maintenance
  • More efficient
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Coal mining

Notable reduction in down time
Customer case

Coal mining

 

Application: Coal discharge chute

Wear part: Chute liner made of Duroxite™ 101

Purpose: Discharges coal into storage bins or stockpiles

Type of wear: Abrasion and impact

Benefits:

  • Increased wear life from 7 days to 6 months over previous design using overlay on mild steel
  • No failure due to impact
  • Notable reduction in down time
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