Available 24/7 at contact@steel-grades.com

21 CrMoNiV 4-7

Germany DIN 21CrMoNiV4-7 Heat treatable alloyed CrMoNi steel and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 21CrMoNiV4-7 / 21 CrMoNiV 4-7
Category Grade Standard Region/Area Standard Content
Metals 21 CrMoNiV 4-7 -- Germany Heat treatable alloyed CrMoNi steel

Chemical composition(mass fraction)(wt.%) of the 21 CrMoNiV 4-7

Element Min Max Similar
V 0.2500 0.3500 -
Si 0.1500 0.3500 -
S - 0.0350 -
P - 0.0300 -
Ni 0.2000 0.8000 -
Mo 0.6500 0.8000 -
Mn 0.3500 0.8500 -
Cr 0.9000 1.2000 -
C 0.1700 0.2500 -

Mechanical Properties of steel grade 21 CrMoNiV 4-7

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)
374 (≥) 696 (≥) 41 44 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade 21 CrMoNiV 4-7

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
14 - -     0.44 -  
289 371 - 24.3 424   -  
857 - 22 11.2   421 233

Heat Treatment of steel grade 21 CrMoNiV 4-7

Heat treated : 1678°C - 1491°C

Technological Curves of steel grade 21 CrMoNiV 4-7

Cross Reference Table (Equivalent Grade) of 21 CrMoNiV 4-7

Available Suppliers

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...

Rfq.: sales@longhaisteel.com
  • Do you supply this 21 CrMoNiV 4-7?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top