AR450 Steel is a type of abrasion resistant steel that has a surface hardness of 420-470 Hardness Brinell. It is a high-carbon steel alloy composed of several different elements, such as carbon and boron. Its unique composition and treatment allow it to provide more surface hardness than AR400, while maintaining good ductility, formability, and impact resistance.
Sizes Offered
As one of the leading abrasion resistant providers in the industry, Ford Steel houses an assortment of AR450 steel plates in different thicknesses. The common range of thickness for AR450 steel plates range from ⅛ inch to 4 inches and come in a variety of lengths depending on the application requirement.
- Thickness: 1/8” thru 4”
- Widths: 48” thru 96”
- Lengths: 96” thru 288”
Heat-Treatment
The steels are not intended to be heat treated during or after fabrication. Tempering at moderate temperatures, 150°C – 200°C, is the only heat treatment which will without fail allow the steel to retain its original wearing properties.
Flame Cutting
A heat affected zone will build up on a thermally cut surface which is similar to the heat affected zone on a fusion welded steel surface. The surface hardens to a depth of 1mm-2mm during flame cutting and post heat results in a soft tempered layer below this. When flame cutting, the pre-heating and working temperature instructions concerning welding can be used as a guideline. In practice it is advisable to preheat when cutting plates, if the thickness is over 10mm.
The maximum allowable working temperature must be kept below 200°C in order that the wear resistance will meet requirements throughout the plate. The cooling of a cut surface must not be accelerated under any circumstances, on the contrary, the cooling of the plate surface can be slowed down if necessary. A plate brought in from cold outside storage must be allowed to warm up sufficiently before cutting.
Abrasion resistant 450 plate protects your equipment from corrosion, wear, and impact. The steel is superior for applications that require more durability, minimizing the lost production time because of worn-out parts. AR450 has many other benefits including:
- Less Cost
- Less weight without sacrificing strength
- Extremely durable
- High Impact resistance
The greatest differentiator between AR450, AR400, and AR500 is the hardness that each achieves. Typically, AR400 is between 360-440 Brinell, while AR450 is around 429-495 Brinell, and AR500 between 460-544 Brinell. Another key differentiator is applications. While all three types of abrasion resistance steel offer great hardness, they vary in terms of formability and brittleness.
In applications where the steel must be hard with good formability, AR400 and AR450 are typically used. When wear is a critical issue that a certain application faces, AR500 may be more appropriate due to its increased hardness and wear resistance over the other two carbon alloys.
Cost is another factor that can impact the choice of abrasion-resistant steel. AR450 and AR500 are both more costly than AR400, as they achieve higher degrees of hardness. In some instances, you may choose to use a less costly option that may need to be replaced more frequently rather than the more expensive option.
Common Industries and Applications
Our AR450 steel plates meet all requirements and standards for EN 10029 and EN 10051. Available Services: Drilling and machining, welding, shearing and unching, forming, Fabrication.
AR450 steel plates are used in heavy equipment manufacturing jobs that rely on it to protect the equipment from extensive wear. The steel plates should not be used in load-bearing or structural design to support extensive amounts of weight. Common industries that use AR450 steel are mining, power, aggregation, cement, pulp/paper, sand & gravel, asphalt, scrap, and slag.
