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S7 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
S7 steel product available : S7 Steel plates, S7 steel sheets, S7 round bars, S7 steel strip, S7 steel wire, S7 steel rod
S7 steel standard : ASTM A681,
S7 steel UNS No.: T41907
S7 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 S7 tool steel chemical composition %

UNS

Type

C

Mn

P max

S max

Si

Cr

V

W

Mo

T41907

S7

0.45-0.55

0.20-0.90

0.030

0.030

0.20-1.00

3.00-3.50

0.35 max

-

1.30-1.80


ASTM A681 S7 tool steel max Brinell hardness in Annealed or cold drawn condition


UNS

Type

Annealed BHN

Cold drawn BHN

T41907

S7

229

255



Type

Preheat temperature ℃

Austenitizing temperature℃

Austenitizing
(Minutes)

Quench
Medium

Tempering temperature℃

Min Hardness RC

Salt Bath

Controlled Atmosphere Furnaces

S7

677

941

954

5-15

Air

204

56


JOIN-WIN STEEL keeps enough quantity S7 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,
S4 tool steel,
S5 tool steel,
S6 tool steel

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