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NV7(4140)

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H51500 H41400
#NV7 #4140

Description

USA UNS NV7(4140) Specialsteel Steel for intake valves and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: NV7(4140)
Category Class Grade Standard Country Application
Steel GradesSpecialsteel NV7(4140) UNS USA Steel for intake valves

Chemical composition(mass fraction)(wt.%) of the NV7(4140)

C Si Mn P S Cr Mo
0.37 -0.44 0.15 -0.35 0.65 -1.10 ≤0.035 ≤ 0.04 0.75 -1.20 0.15 -0.25

Mechanical Properties of steel grade NV7(4140)

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)
228 (≥) 146 (≥) 21 23 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade NV7(4140)

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
44 - -     0.13 -  
495 551 - 42.3 143   -  
854 - 12 22.2   422 214

Heat Treatment of steel grade NV7(4140)

Heat treated : 1522°C - 1169°C

Technological Curves of steel grade NV7(4140)

Cross Reference Table (Equivalent Grade) of NV7(4140)

Grade Standard Country Application
42MnV7
51MnV7
NV7 (4140)
HNV7 (71360)
SAE NV7(4140)
SAE NV7(4140)
SAE HNV7(71360)
SAE HNV7(71360)
S41400
H41400
S41400
AISI 4140
SAE 4140
UNS G41400
AISI TS4140
ASTM 4140
UNS G41400
ASTM 4140
ASTM 4140H
H51500 H41400
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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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