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SAE NV7(4140)

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SAE NV6(5150) UNS H41400
#SAE #NV7(4140)

Description

USA SAE SAE NV7(4140) precipitation hardening and SAE NV7(4140) Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: SAE NV7(4140)
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel SAE NV7(4140) SAE USA precipitation hardening
UNS H15470
SAE NV3
UNS G31410
SAE NV4(3140)
UNS G31400
SAE NV5(8645)
UNS H86450
UNS H86450
UNS H51500
SAE NV6(5150)

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

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％)
0.37-0.44 0.15-0.35 0.65-1.10 Max 0.035 Max 0.04 0.75-1.20 0.15-0.25

Mechanical Properties of steel grade SAE 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)
961 (≥) 683 (≥) 44 43 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade SAE 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 - -     0.22 -  
342 651 - 33.3 131   -  
679 - 34 32.2   124 243

Heat Treatment of steel grade SAE NV7(4140)

Heat treated : 1866°C - 1782°C

Technological Curves of steel grade SAE NV7(4140)

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

Grade Standard Country Application
SAE NVl(1541) SAE USA precipitation hardening
SAE NV2(1547) SAE USA precipitation hardening
SAE NV3 SAE USA precipitation hardening
SAE NV4(3140) SAE USA precipitation hardening
SAE NV5(8645) SAE USA precipitation hardening
SAE NV6(5150) SAE USA precipitation hardening
SAE NV7(4140) SAE USA precipitation hardening
SAE NV8 USA precipitation hardening
SAE NV9 SAE USA precipitation hardening
SAE HNVl SAE USA precipitation hardening
SAE HNV2 SAE USA precipitation hardening
SAE HNV3 SAE USA precipitation hardening
SAE HNV4 SAE USA precipitation hardening
SAE HNV5 SAE USA precipitation hardening
SAE HNV6 SAE USA precipitation hardening
SAE HNV7(71360) SAE USA precipitation hardening
SAE HNV8 SAE USA precipitation hardening
SAE EVl SAE USA precipitation hardening
SAE EV2 SAE USA precipitation hardening
SAE EV3 SAE USA precipitation hardening
SAE NV6(5150) UNS H41400
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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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