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

E 18.20.2 Cu Nb

International ISO E18.20.2CuNb Welding consumables - Covered electrodes for manual metal arc welding of stainless and heat-resisting steels - Classification and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: E18.20.2CuNb / E 18.20.2 Cu Nb
Category Grade Standard Region/Area Standard Content
Metals E 18.20.2 Cu Nb ISO 3581 International Welding consumables - Covered electrodes for manual metal arc welding of stainless and heat-resisting steels - Classification

Chemical composition(mass fraction)(wt.%) of the E 18.20.2 Cu Nb

Element Min Max Similar
Ni 19.0000 22.0000 -
Nb - 1.2000 -
Mo 2.0000 2.5000 -
Cu 1.8000 2.2000 -
Cr 17.0000 20.0000 -
C - 0.1000 -

Mechanical Properties of steel grade E 18.20.2 Cu Nb

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)
475 (≥) 556 (≥) 43 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

Physical Properties of steel grade E 18.20.2 Cu Nb

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 - -     0.31 -  
531 288 - 13.3 134   -  
366 - 11 12.2   244 331

Heat Treatment of steel grade E 18.20.2 Cu Nb

Heat treated : 1173°C - 1195°C

Technological Curves of steel grade E 18.20.2 Cu Nb

Cross Reference Table (Equivalent Grade) of E 18.20.2 Cu Nb

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 E 18.20.2 Cu Nb?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top