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AISI E4340

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UNS G43400 SAE E4340
#AISI # #E4340

Description

AISI E4340 Carbon Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Carbon Steel: AISI E4340
Category Type Steel Grade Standard Country Application
Steel GradesCarbon Steel AISI E4340
SAE 4320
UNS G43200
AISI 4337
SAE 4337
UNS G43370
AISI E4337
UNS G43376
AISI 4340
SAE 4340
UNS G43400

Chemical composition(mass fraction)(wt.%) of the AISI E4340

C
≤		 Si
≤		 Mn
≤		 P
≤		 S
≤		 Cr Ni
 0.38-0.43 0.15-0.35  0.65-0.85 0.025  0.025  0.7-0.9  1.65-2.0 
Mo Al Cu Nb Ti V Ce
0.2-0.3             
N Co Pb B Other    
             
             

Mechanical Properties of steel grade AISI E4340

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
416 (≥) 818 (≥) 43 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 322

Physical Properties of steel grade AISI E4340

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
31 - -     0.33 -  
478 282 - 11.3 124   -  
657 - 33 42.2   431 122

Heat Treatment of steel grade AISI E4340

Heat treated : 1522°C - 1749°C

Technological Curves of steel grade AISI E4340

Cross Reference Table (Equivalent Grade) of AISI E4340

Grade Standard Country Application
AISI 431 AISI USA Martensitic special steel
AISI 440A AISI China Martensitic special steel
AISI 440B AISI USA Martensitic special steel
AISI 440F AISI USA Martensitic special steel
AISI 440F Se AISI USA Martensitic special steel
AISI 501 AISI USA Martensitic special steel
AISI 501A AISI USA Martensitic special steel
AISI 501B AISI USA Martensitic special steel
AISI 502 AISI USA Martensitic special steel
AISI 503 AISI USA Martensitic special steel
AISI 504 AISI USA Martensitic special steel
AISI S13800 USA precipitation hardening
AISI S15500 AISI USA precipitation hardening
AISI 632 AISI USA precipitation hardening
AISI 630 AISI USA precipitation hardening
AISI 635 AISI USA precipitation hardening
AISI 631 AISI USA precipitation hardening
AISI 633 AISI USA precipitation hardening
AISI 633 AISI USA precipitation hardening
AISI 634 AISI USA precipitation hardening
UNS G43400 SAE E4340
Available Suppliers
Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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