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A2 Flat Ground

A2 Flat Ground, is an air hardening chromium alloy die steel that replaces O1 Flat Ground when safer hardening, less distortion and increased wear resistance are required. Characteristics of A2 Flat Ground include - good machinability, high compressive strength, very good non-deforming properties, deep hardening, and high dimensional stability after hardening and tempering. A2 Flat Ground is ground to a surface finish of up to 35Ra on six sides and is free from defects and decarburization. Sold in annealed state to be heat-treated.
  • Specifications: ASTM A681, QQ-T-570, AISI A2
  • AKA: A2 flat bar, A2 premachined
  • Applications: shear blades, dies, punch plates, etc.
  • Tolerances: Thickness = +/- .001", Width = +.005/-0
  • How is it Measured? Thickness (A)  X  Width (B)  X Length
  • Available Stock Sizes: 18 inch lengths

Rockwell Hardness*

59-62C

Corrosion Resistance

Low

Machinability

Medium

Depth of Hardening

Deep

Weldability

Difficult

Grindability

Medium

Wear Resistance

High

Distortion in Heat Treating

Lowest

Overall Toughness

Medium

Decarburization Resistance

Medium

Strength

Medium

Resistance to Heat Softening

Medium

* Can be hardened up to Rockwell C65
Data provided for references only and is not warranted. 

A-2 Flat Ground
Stock
Number
Product Type Item Size & Description
A x B x C (Inches)
Weight
(lbs./pc.)
Click! Arrow to
Select Size
Qty Select / Price
860916 A-2 Flat Ground 1/16 x 1/2 x 18" 1.00
860927 A-2 Flat Ground 1/16 x 3/4 x 18" 1.00
860938 A-2 Flat Ground 1/16 x 1 x 18" 1.00
860960 A-2 Flat Ground 1/16 x 1-1/2 x 18" 1.00
860971 A-2 Flat Ground 1/16 x 2 x 18" 1.00
860982 A-2 Flat Ground 1/16 x 2-1/2 x 18" 1.00
860993 A-2 Flat Ground 1/16 x 3 x 18" 1.00
861001 A-2 Flat Ground 1/16 x 4 x 18" 2.00
818705 A-2 Flat Ground 1/8 x 1/2 x 18" 1.00
818716 A-2 Flat Ground 1/8 x 3/4 x 18" 1.00
818727 A-2 Flat Ground 1/8 x 1 x 18" 1.00
818749 A-2 Flat Ground 1/8 x 1-1/2 x 18" 1.00
818760 A-2 Flat Ground 1/8 x 2 x 18" 2.00
818771 A-2 Flat Ground 1/8 x 2-1/2 x 18" 2.00
818782 A-2 Flat Ground 1/8 x 3 x 18" 2.00
818807 A-2 Flat Ground 1/8 x 4 x 18" 3.00
861657 A-2 Flat Ground 1/4 x 1/4 x 18" 1.00
819333 A-2 Flat Ground 1/4 x 1/2 x 18" 1.00
819344 A-2 Flat Ground 1/4 x 3/4 x 18" 1.00
819355 A-2 Flat Ground 1/4 x 1 x 18" 2.00
809409 A-2 Flat Ground 1/4 X 1-1/2 x 18" 2.00
819377 A-2 Flat Ground 1/4 x 2 x 18" 3.00
819388 A-2 Flat Ground 1/4 x 2-1/2 x 18" 4.00
819399 A-2 Flat Ground 1/4 x 3 x 18" 4.00
819413 A-2 Flat Ground 1/4 x 4 x 18" 6.00
861748 A-2 Flat Ground 3/8 x 3/8 x 18" 1.00
820004 A-2 Flat Ground 3/8 x 1/2 x 18" 1.00
820015 A-2 Flat Ground 3/8 x 3/4 x 18" 2.00
820026 A-2 Flat Ground 3/8 x 1 x 18" 2.00
820048 A-2 Flat Ground 3/8 x 1-1/2 x 18" 3.00
820059 A-2 Flat Ground 3/8 x 2 x 18" 4.00
820070 A-2 Flat Ground 3/8 x 2-1/2 x 18" 5.00
820081 A-2 Flat Ground 3/8 x 3 x 18" 6.00
820092 A-2 Flat Ground 3/8 x 3-1/2 x 18" 7.00
820106 A-2 Flat Ground 3/8 x 4 x 18 8.00
820387 A-2 Flat Ground 1/2 x 1/2 x 18" 2.00
820398 A-2 Flat Ground 1/2 x 3/4 x 18" 2.00
820401 A-2 Flat Ground 1/2 x 1 x 18" 3.00
820423 A-2 Flat Ground 1/2 x 1-1/2 x 18" 4.00
820434 A-2 Flat Ground 1/2 x 2 x 18" 6.00
820456 A-2 Flat Ground 1/2 x 3 x 18" 8.00
820478 A-2 Flat Ground 1/2 x 4 x 18" 11.00
820784 A-2 Flat Ground 5/8 x 5/8 x 18" 2.00
820795 A-2 Flat Ground 5/8 x 3/4 x 18" 3.00
820809 A-2 Flat Ground 5/8 x 1 x 18" 4.00
820831 A-2 Flat Ground 5/8 x 1-1/2 x 18" 5.00
820842 A-2 Flat Ground 5/8 x 2 x 18" 7.00
820864 A-2 Flat Ground 5/8 x 3 x 18" 10.00
820886 A-2 Flat Ground 5/8 x 4 x 18" 13.00
821153 A-2 Flat Ground 3/4 x 3/4 x 18" 3.00
821164 A-2 Flat Ground 3/4 x 1 x 18" 4.00
821186 A-2 Flat Ground 3/4 x 1-1/2 x 18" 6.00
821197 A-2 Flat Ground 3/4 x 2 x 18" 8.00
821211 A-2 Flat Ground 3/4 x 3 x 18' 12.00
821233 A-2 Flat Ground 3/4 x 4 x 18" 16.00
823603 A-2 Flat Ground 1 x 1 x 18" 6.00
823614 A-2 Flat Ground 1 x 1-1/2 x 18" 8.00
823625 A-2 Flat Ground 1 x 2 x 18" 11.00
823647 A-2 Flat Ground 1 x 3 x 18" 16.00
823658 A-2 Flat Ground 1 x 4 x 18" 21.00
Quantity Length in Feet, Inches and Fraction of Inch
PCS FT and IN  
Custom cut tolerances = plus / minus 1/16"
Call Us for Mitering and Large Quantities.
NOTICE: Custom Cut material is non-returnable and not cancelable once processing
begins. Custom cutting may require additional processing time.
Quantity Width in Inches Length in Inches
PCS and X and  
Custom cut tolerances = plus / minus 1/16"
Call Us for Mitering and Large Quantities.
NOTICE: Custom Cut material is non-returnable and not cancelable once processing
begins. Custom cutting may require additional processing time.