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

20 MnMoNi 4 5

Germany SEW 20MnMoNi45 Steels for larger forgings; quality regulations and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: 20MnMoNi45 / 20 MnMoNi 4 5
Category Grade Standard Region/Area Standard Content
Metals 20 MnMoNi 4 5 SEW 550 Germany Steels for larger forgings; quality regulations

Chemical composition(mass fraction)(wt.%) of the 20 MnMoNi 4 5

Element Min Max Similar
C - 0.2300 -
Mn 1.0000 1.5000 -
P - 0.0200 -
S - 0.0150 -
Si 0.1500 0.3500 -
Ni 0.4000 0.8000 -
Cr - 0.2000 -
Mo 0.4000 0.6000 -
V - 0.0200 -
N - 0.0150 -
Al 0.0100 0.0500 -
Si - 0.4000 -
S - 0.0350 -
P - 0.0350 -
Ni 0.4000 0.8000 -
Mo 0.4500 0.6000 -
Mn 1.0000 1.5000 -
Cr - 0.5000 -
C 0.1700 0.2300 -

Mechanical Properties of steel grade 20 MnMoNi 4 5

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)
446 (≥) 238 (≥) 32 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 20 MnMoNi 4 5

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
41 - -     0.42 -  
585 965 - 14.3 332   -  
991 - 43 41.2   123 214

Heat Treatment of steel grade 20 MnMoNi 4 5

Heat treated : 1746°C - 1421°C

Technological Curves of steel grade 20 MnMoNi 4 5

Cross Reference Table (Equivalent Grade) of 20 MnMoNi 4 5

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 20 MnMoNi 4 5?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top