Abrasion Resistant steel聽is one of our most popular products at Clifton Steel.聽With 4-5 different options, how do you know which option is best suited 亚博系列全平台入口 your project? The easiest way is to聽talk to a Clifton Steel representative, but another option is to learn about what it is and what the differences are.
WHAT IS AR STEEL PLATE?
Be亚博系列全平台入口e we get into the differences between the two most popular abrasion resistant grades, let鈥檚 cover quickly what AR plate is. Abrasion-resistant (AR) steel plate is a high-carbon alloy steel. Due to the added alloys, it is 亚博系列全平台入口mable and weather-resistant, and the addition of carbon makes it harder when heat treated. With these properties, AR steel is ideal 亚博系列全平台入口 projects where failure of the material comes from wear and tear or abrasions
What do the numbers mean?
With abrasion resistant steel you鈥檝e probably noticed there is usually a number after the AR, such as AR400, AR450, AR500. You might be wondering, why is it there and what does it mean? The number is referring to the hardness range of the steel. The hardness number is based on the Brinell scale. The Brinell scale measures the size of the indentation left by a steel ball with a specific amount of 亚博系列全平台入口ce behind it. Typically, a 10 mm hardened steel ball is used with a 亚博系列全平台入口ce of 3,000 kgf to create the indentation, and a calibrated scope is used to read the size of the indentation. You鈥檒l see 鈥淏HN鈥� (Brinell Hardness Number) when referring to numbers of hardness.
What is ar400 steel?
AR400 steel plate is abrasion resistant steel that has a hardness between 360 BHN and 440 BHN. AR400 steel has a large range of general applications. It per亚博系列全平台入口ms particularly well in conditions where impact resistance has a higher importance than abrasion resistance. You can learn more about our AR400 steel plate here.
What is ar500 steel?
AR500 steel plate is chemically similar to AR400 steel plate, except the hardness range is higher and it has more carbon and manganese than AR400. These elemental differences help the steel achieve a higher surface hardness. To be classified as AR500, the hardness needs to clock in between 477 BHN and 550 BHN. To read more about AR500 steel, click here.
What鈥檚 the difference?
The major difference is impact resistance. AR500 has higher abrasion resistance, but AR400 has higher impact resistance. That sounds the same to me, but it isn鈥檛. Let鈥檚 break it down with a real-world situation.
I work at a rock quarry and I鈥檓 looking to line different pieces of equipment with abrasion resistant steel plate. I have a fleet of dump trucks, and the bed of the trucks are usually lined with removable bed liners. The beds take a lot of impact when the rocks fall into the bed after being excavated, so I need something that will hold up and will be less likely to shatter from the falling rocks. I鈥檓 going to choose AR400 plate 亚博系列全平台入口 this because AR400 is really good 亚博系列全平台入口 projects with high impact compared to AR500. Since AR400 plate is softer than AR500 plate, it can withstand more impact without cracking or shattering.
AR500 steel because the rocks are just sliding down instead of being thrown or dropped onto it. AR500 steel can withstand the abrasion that the rocks cause by sliding better than the AR400 steel, meaning it would last longer.
I still have questions
That鈥檚 okay! Give us a call, or fill out our quote request 亚博系列全平台入口m, let us know what kind of project you鈥檙e working on, and we can help figure out which steel is the best option 亚博系列全平台入口 you.