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Description

HNV4 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:High Alloy: HNV4
Category Type Steel Grade Standard Country Application
Steel GradesHigh Alloy HNV4
NV7 (4140)
H41400
NV8
NV9
HNV1
S64005
HNV2
S64006
HNV3
S65007

Chemical composition(mass fraction)(wt.%) of the HNV4

C
Si
Mn
P
S
Cr Ni
0.45 3.30 0.40     7.00 1.00
Mo Al Cu Nb Ti V Ce
             
N Co Pb B Other trade names  
          731  
             

Mechanical Properties of steel grade HNV4

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)
854 (≥) 752 (≥) 13 22 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade HNV4

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
24 - -     0.43 -  
717 618 - 31.3 444   -  
513 - 41 22.2   311 222

Heat Treatment of steel grade HNV4

Heat treated : 1536°C - 1495°C

Technological Curves of steel grade HNV4

Cross Reference Table (Equivalent Grade) of HNV4

Grade Standard Country Application
SAE HNV4 SAE USA precipitation hardening

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