What is AR550 Steel?
Tensalloy™ AR550 steel is a high-performance abrasion-resistant steel plate that provides exceptional wear and impact resistance. Its increased surface hardness makes it ideal for demanding, high-abrasion applications. AR550’s superior impact resistance allows for longer service life while reducing material thickness. With a hardness range of 530-570 BHN, AR550 excels in resisting sliding abrasion. Clifton Steel’s rigorous quality control ensures consistent performance and reliability in every Tensalloy™ AR550 steel plate.
Tensalloy™ AR550 Overview
- Hardness ranges from 530 to 570 BHN
- Outstanding resistance to sliding wear
- Provides long-term cost savings through superior durability
- All abrasion-resistant material is rolled prime
Common uses for Tensalloy™ AR550 Steel
- Buckets
- Bulldozers
- Chutes
- Dump liners
- Excavators
- Hoppers
- Truck beds
- Truck plows
Tensalloy™ ar550 steel specifications
All Tensalloy™ AR550 steel plate supplied meets ASTM A6 standards
Typical Chemical Composition
| Thickness | .125" - .405" |
| Carbon | 0.35 max |
| Manganese | 0.95 |
| Phosphorus | 0.020 |
| Sulfur | 0.010 |
| Silicon | 0.50 |
| Chromium | 0.75 |
| Nickel | 0.55 |
| Molybdenum | 0.75 |
| Boron | 0.003 |
Typical Mechanical Properties
| Yield Strength | 220 ksi |
| Tensile Strength | 265 ksi |
| Elongation (% in 2") | 7% |
| *Tensile & yield testing is not standard, but available upon request. | |
AR550 Availability
| Thickness | 0.125" through 0.405" |
| Width | 48" to 60" |
| Length | 96" to 120" |
| Available in plates | |
Available Dimensions for 0.187"
| Grade | Thickness | Width | Length |
| AR550 | 0.187" | 48" | 96" |
| AR550 | 0.187" | 48" | 120" |
| AR550 | 0.187" | 60" | 96" |
| AR550 | 0.187" | 60" | 120" |
| available in the above grade and thickness | |||
Available Dimensions for 0.25"
| Grade | Thickness | Width | Length |
| AR550 | 0.25" | 48" | 96" |
| AR550 | 0.25" | 48" | 120" |
| AR550 | 0.25" | 60" | 96" |
| AR550 | 0.25" | 60" | 120" |
| available in the above grade and thickness | |||
Available Dimensions for 0.3125"
| Grade | Thickness | Width | Length |
| AR550 | 0.3125" | 48" | 96" |
| AR550 | 0.3125" | 48" | 120" |
| AR550 | 0.3125" | 60" | 96" |
| AR550 | 0.3125" | 60" | 120" |
| available in the above grade and thickness | |||
Available Dimensions for 0.375"
| Grade | Thickness | Width | Length |
| AR550 | 0.375" | 48" | 96" |
| AR550 | 0.375" | 48" | 120" |
| AR550 | 0.375" | 60" | 96" |
| AR550 | 0.375" | 60" | 120" |
| available in the above grade and thickness | |||
Hardness
530 – 570 BHN Minimum surface hardness of 530 BHN. Impact strength CVNL average values of 14ft. lbs at -40 ° F.
Forming
Tensalloy™ AR550 steel plates are not considered formable given its high strength and hardness. However, forming can be done with an inside radius of at least 8t (where t is the plate thickness) with the bend axis transverse to the rolling direction.
Cutting
Tensalloy™ AR550 steel can be cut to your specifications with plasma, oxy-Acetylene, laser, and water jet, as well as with abrasive cut off saws.
Machining
Drilling, countersinking, counterboring, tapping, milling, and general machining can be done with conventional equipment and carbide tools.
Welding
Low-hydrogen-producing electrodes must be used in welding. Where maximum strength of joining plates is not important, rod type AWS E7016, 15, or 18 should be used, or our Tensaweld Workmate for welding wire options. If the weld joint is to be subjected to wear, finish the structural joint slightly below the surface and cap with Tensaweld Ultra-100. When higher weld strengths are required, electrodes of the AWS E90, E100 or E120 low hydrogen series, or Tensaweld Nickel-90 should be used, depending on the strength levels required.