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S4 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: Shock-resisting tool steel
S4 steel product available : S4 Steel plates, S4 steel sheets, S4 round bars, S4 steel strip, S4 steel wire, S4 steel rod
S4 steel standard : ASTM A681,
S4 steel UNS No.: T41904
S4 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 S4 tool steel chemical composition %

UNS

Type

C

Mn

P max

S max

Si

Cr

V

W

Mo

T41904

S4

0.50-0.65

0.60-0.95

0.030

0.030

1.75-2.25

0.10-0.50

0.15-0.35

-

-


ASTM A681 S4 tool steel max Brinell hardness in Annealed or cold drawn condition


UNS

Type

Annealed BHN

Cold drawn BHN

T41904

S4

229

255



Type

Preheat temperature ℃

Austenitizing temperature℃

Austenitizing
(Minutes)

Quench
Medium

Tempering temperature℃

Min Hardness RC

Salt Bath

Controlled Atmosphere Furnaces

S4

677

885

899

5-15

Oil

204

58


JOIN-WIN STEEL keeps enough quantity S4 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 Shock-resisting tool steel in standard ASTM A681
S1 tool steel,
S2 tool steel,
S5 tool steel,
S6 tool steel,
S7 tool steel ,

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