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

X 4 NiCrMoCuNb 20-18-2

Germany SEW X4NiCrMoCuNb20-18-2 Stainless steels for rolled and forged products and Mechanical Properties, Chemical Element, Cross Reference.

Category Grade Standard Region/Area Standard Content
Metals X 4 NiCrMoCuNb 20-18-2 SEW 400 Germany Stainless steels for rolled and forged products

Chemical composition(mass fraction)(wt.%) of the X 4 NiCrMoCuNb 20-18-2

Element Min Max Similar
Si - 1.0000 -
S - 0.0150 -
P - 0.0450 -
Ni 19.0000 21.0000 -
Nb - - -
Mo 2.0000 2.5000 -
Mn - 2.0000 -
Cu 1.8000 2.2000 -
Cr 16.5000 18.5000 -
C - 0.0500 -

Mechanical Properties of steel grade X 4 NiCrMoCuNb 20-18-2

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)
279 (≥) 774 (≥) 34 31 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade X 4 NiCrMoCuNb 20-18-2

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 - -     0.24 -  
114 412 - 41.3 414   -  
273 - 31 42.2   341 414

Heat Treatment of steel grade X 4 NiCrMoCuNb 20-18-2

Heat treated : 1431°C - 1224°C

Technological Curves of steel grade X 4 NiCrMoCuNb 20-18-2

Cross Reference Table (Equivalent Grade) of X 4 NiCrMoCuNb 20-18-2

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 X 4 NiCrMoCuNb 20-18-2?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top