AR 400 and AR 500 steel plates represent two premier grades of abrasion-resistant steel designed to withstand severe wear and abrasion challenges found in even the harshest conditions. Crafted with precision, these steel variants are tailored to offer superior resistance against abrasion-induced deterioration when used across various industries.
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But what are the main differences between these two grades of steel and how do they affect their applications? Let&#;s dive deeper into what sets AR 400 and AR 500 steel plates apart.
armored vehicles
, and mining equipment.AR 400 Steel:
Compared to AR 500 steel, AR 400 generally has higher toughness and ductility, meaning it&#;s less prone to cracking, especially in applications involving high-impact or dynamic loading conditions. However, it&#;s essential to consider that both grades of steel can still experience cracking under extreme stress or improper use.AR 500 Steel:
This grade is more prone to cracking with impact than AR 400 steel, making it more suitable for sliding abrasion found in agricultural, manufacturing, and mining machinery and equipment.AR 400 Steel:
Due to its lower hardness, AR 400 steel is generally considered to be more readily machinable.AR 500 Steel:
This grade of steel is machinable but more challenging to machine compared to lower grades. It requires appropriate cutting tools, techniques, and machining parameters to achieve satisfactory results.AR 400 Steel:
This grade can be welded using appropriate procedures, but precautions need to be taken to avoid excessive heat input, which can affect the hardness and performance of the material.AR 500 Steel:
Using appropriate welding procedures, AR 500 steel can be welded, but care must be taken to avoid excessive heat input, which can compromise the material&#;s hardness and performance.Titus Steel carries both grades of AR steel under the trade name DYNAMIC and DYNAMIC Armor.
When choosing between DYNAMIC AR 400 and DYNAMIC AR 500 steel plates, the selection will depend on the specific requirements of the application.
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If your project involves high levels of sliding abrasion and wear or requires ballistic protection, DYNAMIC AR 500 is the preferred choice due to its higher hardness.
However, for less demanding applications, DYNAMIC AR 400 may provide appropriate wear resistance while being more machinable.
Contact us today for more information about our AR 400 and AR 500 steel plates and to receive a personalized quote for your specific needs.
Abrasion-resistant (AR) steel is a type of high-carbon alloy steel. The alloys in it make it formable and weather resistant, and the amount of carbon in the steel can affect the hardness when heat treated. When reading these types of steel grades, such as AR400 and AR500, it is important to note that the number following the letters AR represents the hardness range of the steel.
AR steel is often used in applications where the material will experience failure via wear and tear or abrasions over time. Let's talk about the key differences of AR400 vs. AR500 steel, and how we can best employ them.
As mentioned earlier, the number in the AR steel description represents the hardness range of the steel, a number that is based on the Brinell Scale. The Brinell Scale characterizes the hardness of steel through the scale of penetration of an indenter loaded on a material test piece. AR400 steel falls between 360 BHN and 440 BHN, whereas AR500 steel falls between 477 BHN and 550 BHN on the Brinell Scale. Though these two grades have similarities, the key difference between the two is a characteristic called impact resistance.
Impact resistance describes the energy required to break a piece of test material into two pieces or more. AR400 steel is known to have a high impact resistance, so it is used in applications like in the bed of a dump truck. The bed of the dump truck will experience impacts when things are loaded in and out of the bed, so it is important you use a steel like AR400 that has a high impact resistance and will not shatter over time.
Comparatively, AR500 steel is known to have a high abrasion resistance. This results in AR500 steel being used for applications where the material will be exposed to wear and tear from materials rubbing against them rather than being dropped onto them such as in AR400 applications.
It is important to be aware of the physical and chemical properties of the materials you use, and it is equally important to know the difference between those properties amongst grades. This will ensure you select the best material for the given objective. Contact the knowledgeable team at ECONSTEEL for help selecting the best steel grade for your application.
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