AR250 steel is a type of low cost abrasion resistant steel plate that offers outstanding wear and impact resistance at an economical price. AR250 offers superior weldability, formability, and toughness in combination with good weathering characteristics. In addition, it exhibits improved flatness and a clean surface.


This excellent combination of properties is possible because of the low carbon chemistries and the thermo-mechanical controlled rolling processes used in the manufacture of AR250 steel plates. These plates provide a good alternative to AR400 in applications where wear is not severe yet a hardness exceeding standard A36 plates is needed.


AR250 Steel Plate Specifications


Hardness

200 – 270 BHN

Impact Strength

Charpy Impact Properties (Longitudinal Specimen), Minimum 20 ft-lb @ -40 ºF (27 J @ -40 ºC)

Cutting

AR250 steel can be cut 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.

Forming

AR250 steel plates are made for improved formability with low levels of carbon and sulphur for inclusion shape control.

Up to .75" can be cold bent to minimum inside bend radius of 1.75t (where t is the plate thickness) with the bend axis transverse to the rolling direction. A radius of 2.5t can be used when bending parallel to the roll direction.

For plate over .750" a radius of 3t is recommended when forming transverse to the rolling direction.

Welding

AR250 steel has excellent weldability and can be welded with simple procedures and common consumables such as E7018.

Typical Chemical Composition
Carbon 0.10
Manganese 2.00
Molybdenum 0.50
Sulfur 0.01
Phosphorus 0.02
Silicon 0.40
Aluminum 0.06

Typical Mechanical Properties
Yield Strength 100 ksi
(690 MPa)
Tensile Strength
110 ksi
(760 MPa)
Elongation in 2" (50mm) 16%

Availability
Thickness 1/8" through 8"
Width 48" to 120"
Length 480"
Available in plates

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