What does AR mean in steel?

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Abrasion resistant
Abrasion resistant (AR) steel plate is a high-carbon alloy steel plate. This means that AR is harder due to the addition of carbon, and formable and weather resistant due to added alloys.

Is AR400 brittle?

For some projects, hardness is crucial, and therefore brittleness is compromised; however, in other cases, the material should be formed and handled, so the level of hardness should be decreased. As a general rule, AR450 and AR400 are the “sweet spots” in terms of good formability combined with good hardness.

Is AR500 steel brittle?

AR500 strikes the balance between softer AR steels, such as AR400, which can easily pit with rifle fire and harder AR steels, such as AR600, which can be brittle and crack. We use only American made AR500 steel, and specify a BHN (Brinell test for hardness) of 500 or more.

What is the difference between AR400 and AR500?

What’s the difference? The major difference is impact resistance. AR500 has higher abrasion resistance, but AR400 has higher impact resistance.

What hardness is AR plate?

360/440 BHN
AR Plate & Strips Hardness range is 360/440 BHN with a nominal hardness of 400 BHN. Service Temperature is 400°F. This plate product is intended for use in applications where a good balance of formability, weldability, toughness and abrasion resistance are required.

Is AR400 steel strong?

AR400 is specifically designed for abrasion and wear-resistant applications. AR400 has a typical hardness range of 360-444 BHN, which is slightly lower than AR450. As with other abrasion-resistant steels, it does not have defined chemistry, but rather, the grade is determined based on hardness.

What grade of steel is AR400?

AR400, also known at Ford Steel as Wearalloy 400, is a high-carbon steel with a nominal hardness of 400 and a minimum hardness on the Brinell scale of 360 to 440. Abrasion resistant steel is created by quenching and tempering forged steel plates.