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Quard 400, 450 & Quard500


Description

Quard is a martesitic abrasion resistant steel, with an average hardness of 370 - 550 HBW. The steel offers very high resistance to abrasive wear and impact granting a longer service life. The combination of very good cold forming properties and excellent weldability makes Quard an optimal choice for most wear applications.


Grades
Quard 400
Quard 450
Quard 500 and 550


Quard 400
Quard 400 is an abrasion resistant steel with an initial hardness of 400 Brinell.Due to its optimal combination of hardness, strength and ductility, Quard 400 can be used in any application subject to wear from various hard abrasives such as rocks, sand, minerals, scrap, waste or other aggressive materials ...


Quard 450
Quard 450 offers high wear resistance in applications exposed to increased wear from sliding abrasion and heavy impacts from crushing rocks, gravel, sand or other harsh abrasives.
With a typical hardness of 450 Brinell, Quard 450 combines high strength with very good workability, especially in welding and cold forming.

Quard 500 & 550
Quard 500 and Quard 550 are intended for use in harsh applications where very high abrasion resistance is essential.
As these products will be produced in the same high standard of quality, like all other Quard wear plates, they will offer the same advantages such as superior surface quality, perfect flatness and tight thickness tolerances.

Welding

Welding Quard is easy and produces outstanding results.
Quard can be welded using any conventional welding method, both manually and automatically.
Due to the low carbon equivalents of Quard, preheating prior to welding is unnecessary in a thickness up to 20 mm.
On account of the tight thickness and flatness tolerances, Quard is well suited for automatic welding.
Quard can also be welded to any other weldable steel.



Bending
Quard has excellent cold forming properties, promoting new innovative solutions for lightweight design.
The excellent bending performance of Quard is achieved by:
  • low levels of non metallic inclusions
  • consistent mechanical properties
  • high crack resistance
  • tight thickness tolerances
  • excellent surface finish
  • consistent spring back
  • Numerous welding operations can be replaced by bending, resulting in a further reduction of production costs.

Cutting
Thermal or cold cutting methods can be used for Quard steel.
Thermal cutting, using either oxygen fuel, plasma or laser cutting is as easy as cutting mild steel.
Quard does not require preheating prior to thermal cutting.
Cold cutting methods, such as abrasive water jet cutting, shearing or sawing have the advantages of not thermally affecting the part being cut, thus avoiding the softening of small parts being produced.

Application
Dumper bodies, crushers, impact hammers, buckets, feeders, conveyors, bulldozers, compactors, cutters in shredders, etc.

Produk Terkait:

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