Deluxe Tool Steel & Alloy Plates

Your complete source for deluxe tool steel and alloy plate—sourced from top specialty mills with proprietary grades. Super 7 MQ® and Marshalloy MQ® lead the line alongside O-1, A-2, D-2, S-7, and H-13. Every plate is built to our spec, decarb-free on both faces, and warranty-backed.

H-13 (FIRECHROME)

Hot Work Tool SteelPrecision Marshall’s FIRECHROME is an excellent hotwork tool steel, featuring a combination of shockresistance, red hardness, and abrasion resistance. It is capable…

Thickness:
.25" - 8"
Spec:
A-681

S-7 Standard

Shock Resistant Tool SteelPrecision Marshall’s S7 Standard is a premium shock resistant tool steel which provides a unique combinationof machinability, exceptional toughness, ease of heat…

Thickness:
.50" - 8"
Spec:
A-681

D-2 (ARISTOCRAT)

Hard Carbon/ High Chrome Tool SteelPrecision Marshall’s ARISTOCRAT is an air hardening tool steel which provides exceptional wear resistancewith medium toughness, ease of heat treatment…

Thickness:
.25" - 8"
Spec:
A-681

A-2 (AIRTRUE)

Air Hardening Tool SteelPrecision Marshall’s AIRTRUE is an air hardening tool steel which provides a good combination of wearresistance, toughness, ease of heat treatment and…

Thickness:
.25" - 8"
Spec:
A-681

Marshalloy Standard

Prehardened Alloy SteelPrecision Marshall’s MARSHALLOY™ STD is a prehardened, high-quality, 4140/4142 modified, alloy steelintended for all mechanical uses where improved machinability, uniform hardness and excellent…

Thickness:
.25" - 8"
Spec:
ASTM A-829

Marshalloy Annealed (4140)

Annealed Alloy SteelPrecision Marshall’s MARSHALLOY™ 4140 Annealed is a high-quality, 4140 alloy steel intended for all mechanical uses where improved machinability, uniform hardness and excellent…

Thickness:
.25" - 8"
Spec:
A-829

S-7 Mold Quality (SUPER 7 MQ)

Shock Resistant Tool Steel Precision Marshall’s SUPER 7 MQ® is a premium shock resistant tool steel which provides a unique combination ofmachinability, exceptional toughness, ease…

Thickness:
.25"-8"
Spec:
A-681

O-1 (PRESCO)

Oil Hardening Tool SteelPrecision Marshall’s PRESCO is a general purpose, non-deforming oil hardening tool steel for applicationswhere maximum accuracy is required during the hardening of…

Thickness:
.250" - 4"
Spec:
ASTM A-681

Marshalloy MQ®/FM

Prehardened Alloy Steel MARSHALLOY MQ®/FM, exclusively by Precision Marshall Steel, is a mold quality steel supplied in the prehardened condition. Special melting and refining practices…

Thickness:
.50" – 4"
Spec:
ASTM A-829