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

France AFNOR NF C55 淬火和回火钢 - 第2部分:非合金钢的交货技术条件。 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: C55 / C 55
Category Grade Standard Region/Area Standard Content
Metals C 55 NF EN 10083-2 France 淬火和回火钢 - 第2部分:非合金钢的交货技术条件。

Chemical composition(mass fraction)(wt.%) of the C 55

Element Min Max Similar
Si - 0.4000 -
S - 0.0450 -
P - 0.0450 -
Ni - 0.4000 -
Mo - 0.1000 -
Mn 0.6000 0.9000 -
Cr+Mo+Ni - 0.6300 -
Cr - 0.4000 -
C 0.5200 0.6000 -

Mechanical Properties of steel grade C 55

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)
595 (≥) 251 (≥) 34 24 12 Solution and Aging, Annealing, Ausaging, Q+T,etc 342

Physical Properties of steel grade C 55

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
22 - -     0.11 -  
315 422 - 43.3 124   -  
693 - 42 11.2   213 113

Heat Treatment of steel grade C 55

Heat treated : 1697°C - 1259°C

Technological Curves of steel grade C 55

Cross Reference Table (Equivalent Grade) of C 55

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 C 55?
  • List your company on S&G now? Join
  • Non-paying users only
Sidebar RFQs Menu My Account
Top