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A3 Tool steel

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Tool Steel: Special steel suitable for working or processing of material, for handling and measuring workpieces and, for this purpose, exhibiting high hardness and wear resistance and/or toughness.
Product: cold work tool steel
A3 steel product available : A3 Steel plates, A3 steel sheets, A3 round bars, A3 steel strip, A3 steel wire, A3 steel rod
A3 steel standard : ASTM A681,
A3 steel UNS No.: T30103
A3 steel surface usual condition:
-- The hot rolled or forged condition (as cold work)
-- The machined (ground, polished, turned, peeled or milled ) condition
-- The cold reduced condition

ASTM A681 A3 tool steel chemical composition %

UNS

Type

C

Mn

P max

S max

Si

Cr

V

W

Mo

T30103

A3

1.20-1.30

0.40-0.60

0.030

0.030

0.10-0.70

4.75-5.50

0.80-1.40

-

0.90-1.40


ASTM A681 A3 tool steel max Brinell hardness in Annealed or cold drawn condition


UNS

Type

Annealed BHN

Cold drawn BHN

T30103

A3

229

255



Type

Preheat temperature ℃

Austenitizing temperature℃

Austenitizing
(Minutes)

Quench
Medium

Tempering temperature℃

Min Hardness RC

Salt Bath

Controlled Atmosphere Furnaces

A3

788

968

982

5-15

Air

204

63


JOIN-WIN STEEL keeps enough quantity A3 steel in stock each month. We can meet our customer’s further process request like : rolling, bending, cutting ( any size and any shape ) drilling, welding, milling, machining and steel structure.

Other steel grades of cold work tool steel in standard ASTM A681
A2 tool steel,
A4 tool steel,
A5 tool steel,
A6 tool steel,
A7 tool steel,
A8 tool steel,
A9 tool steel,
A10 tool steel

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