Tool Steel

Tool Steel grades readily available in
D-2, A-2, S-7, O-1, O-6, A-6, H-13 and L-6.
Additional grades also available upon request!

Alro Specialty Metals stocks millions
of pounds of Tool Steel available in many sizes of rounds, squares, flats and plate.

For the best in Quality and Service
call Alro for all your Tool Steel
and other metal requirements!

GRADE DESCRIPTION AND AVAILABLE SIZES

AISI D-2
(click on grade for more detail)

D-2 is an air-hardening, high carbon, high chromium tool steel having extremely high wear resisting properties. It is a very deep hardening steel and will be practically free from size change after proper treatment. The high percentage of chromium gives it mild corrosion resisting properties in the hardened condition.

D-2	Diameter	Thickness	Widths	Lengths
Flat Bar	-	1/4" to 8"	3/8" to 20"	12'
Rounds	1/4" to 24"	-	-	12'
Squares	3/8" to 8"	-	-	12'
Plate	-	1/4" to 8"	To Size	To Size

Tool Steel Squares and Flats also available in KPM Super Square*	D-2 Rounds are stocked up to 24" diameter
*Click here for information on KPM Super Square

AISI A-2
(click on grade for more detail)

A-2 is an air-hardening steel capable of hardening throughout in heavy sections. It has been used for those applications in which the sections are very large and those involving extreme accuracy of size and extreme hazards in hardening.

A-2	Diameter	Thickness	Widths	Lengths
Flat Bar	-	1/4" to 8"	3/8" to 20"	12'
Rounds	1/4" to 24"	-	-	12'
Squares	3/8" to 8"	-	-	12'
Plate	-	1/4" to 8"	To Size	To Size

A-2 Rounds in stock from
1/4" to 24" diameter

All Drops are Fully Traceable and Certified
with Verifiable Bin Locations

AISI S-7
(click on grade for more detail)

S-7 is a general purpose air hardening tool steel having high impact and shock resistance. It has good resistance to softening at moderately high temperatures. This combination of properties makes it suitable for many hot-work and cold-work applications.

S-7	Diameter	Thickness	Widths	Lengths
Flat Bar	-	1/4" to 8"	3/8" to 12"	12'
Rounds	1/4" to 16"	-	-	12'
Squares	3/8" to 8"	-	-	12'
Plate	-	1/4" to 8"	To Size	To Size

AISI O-1
(click on grade for more detail)

O-1 is an oil-hardening, non-deforming tool steel which can be hardened at relatively low temperatures. Tools and dies made from O-1 will have good wearing qualities since the Tungsten and higher Chromium content gives improved wear resistance over the straight Manganese grades.

O-1	Diameter	Thickness	Widths	Lengths
Flat Bar	-	1/4" to 6"	3/8" to 12"	12'
Rounds	1/4" to 12"	-	-	12'
Squares	3/8" to 6"	-	-	12'
Plate	-	1/4" to 6"	To Size	To Size

AISI O-6
(click on grade for more detail)

O-6 is an oil-hardening cold work tool steel which has outstanding machinability resulting from small particles of graphitic carbon uniformly dispersed throughout the steel. These particles increase resistance to wear and galling in service.

Saw Cutting to meet your specific requirements

O-6	Diameter	Thickness	Widths	Lengths
Flat Bar	-	1/2" to 4"	1/2" to 10"	12'
Rounds	3/8" to 10"	-	-	12'
Squares	1/2" to 4"	-	-	12'
Plate	-	1/2" to 4"	To Size	To Size

AISI A-6
(click on grade for more detail)

A-6 is an air-hardening, non-deforming tool steel that combines the deep hardening characteristics of air-hardening steels with the simplicity of low temperature heat treatment possible in many of the oil-hardening grades.

A-6	Diameter	Thickness	Widths	Lengths
Flat Bar	-	1/4" to 4"	3/8" to 12"	12'
Rounds	3/8" to 7-1/2"	-	-	12'
Squares	1/4" to 4"	-	-	12'
Plate	-	1/4" to 4"	To Size	To Size

AISI H-13
(click on grade for more detail)

H-13 is a 5% chromium hot work tool steel designed for applications that require extreme toughness combined with good red-hardness. H-13 will allow an extra margin of safety in tools subject to heavy hammer blows, and those containing deep recesses or sharp corners.

H-13	Diameter	Thickness	Widths	Lengths
Flat Bar	-	1/4" to 6"	3/8" to 10"	12'
Rounds	1/4" to 18"	-	-	12'
Squares	1/4" to 6"	-	-	12'
Plate	-	1/4" to 6"	To Size	To Size

AISI L-6
(click on grade for more detail)

L-6 is a tough, oil-hardening tool steel possessing a fine-grained structure and desirable shock resistance. L-6 is also associated with high strength and good non-deforming characteristics.

L-6	Diameter	Thickness	Widths	Lengths
Flat Bar	-	-	-	-
Rounds	1/2" to 9"	-	-	12'
Squares	-	-	-	-

For more Information and Chemical Analysis for each grade click here!

Other Tool Steel Grades Available Upon Request

When ordering Tool Steel, consider these other products
available for immediate delivery from Alro!

Flat Ground Stock

Alro stocks Flat Ground Stock in a variety
of thicknesses and widths in 18" and 36" lengths

(Flat Ground Stock is wrapped individually to protect the surface)

Available Flat Ground Grades

O-1, LC, A-2, D-2, S-7, A-6, O-6, 4140

Drill Rod Stock

Drill Rod is stocked in 36" lengths.
Other lengths are available upon request.

Available Drill Rod Grades

W-1, O-1, D-2, A-2, A-8, M-2, M-7, S-7

Cold Finished Bar

Alloy Bars

1018
1045
1117
1137

1141
1144
12L14
1215

Stressproof
Fatigueproof
ETD 150

Available In:
Rounds • Flats • Squares • Hexagons

4130
4140
4150

4340
52100

6150
8620

Available In:
Rounds • Flats • Squares • Plate

Tool Wrap

KPM Super Square

Tool Wrap provides the means to cut your air-hardening costs. Simply wrap your parts to be heat treated in our special Tool Wrap. Place the parts in your furnace. Let the parts air-cool as usual with the Tool Wrap on.

Tool Wrap Advantages

No costly atmosphere or fancy controls needed.
No time consuming Ni-chrome box packing with charcoal or other carbon-aceous materials.
Notice how clean the hardened parts are.
Observe how fast the parts reach your desired temperature and how fast they cool after treatment.

Alro Specialty is a distributor of KPM Super Square. With its squared edges and tighter tolerances, KPM Super Square saves cost on purchased weight, hours in machining time and increases die build efficiency. Available in:

Tool Steel
Carbon Steel Bars
Alloys

Tolerances on KPM bars are within plus .015" to .025" on thickness and width and square within .002"