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AISI 4340 / UNS G43400 Alloy Steel

AISI 4340 / UNS G43400 Alloy Steel

AISI 4340 / UNS G43400 Alloy Steel

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AISI 4340 / UNS G43400 Alloy Steel





Material Name


AISI 4340 / UNS G43400 Alloy Steel

AISI 9310 alloy steel is a low alloy steel containing molybdenum, nickel and chromium.

Chemical Composition


■Chemical Composition(％)






Fe Ni Cr Mn C Mo Si P S
95.195 - 96.33 1.65 - 2.00 0.70- 0.90 0.60 - 0.80 0.37- 0.43 0.2-0.3 0.15-0.3 0.035 0.045

Features


Alloy steels are designated by AISI four-digit numbers. They comprise different kinds of steels having composition exceeding the limitations of B, C, Mn, Mo, Ni, Si, Cr, and Va set for carbon steels.AISI 4340 alloy steel is a heat treatable and low alloy steel containing chromium, nickel and molybdenum. It has high toughness and strength in the heat treated condition.

Application



AISI 4340 alloy steel is mainly used in power transmission gears and shafts, aircraft landing gear, and other structural parts.

Delivery State


Generally heat treatment state of delivery, the type of heat treatment should be indicated in the contract, not indicated, according to the state of non heat treatment delivery.