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P 355 NL 2

France AFNOR NF P355NL2 压力平板钢产品-第3部分:可焊接细晶粒钢,正火 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: P355NL2 / P 355 NL 2
Category Grade Standard Region/Area Standard Content
Metals P 355 NL 2 NF EN 10028-3 France 压力平板钢产品-第3部分:可焊接细晶粒钢,正火

Chemical composition(mass fraction)(wt.%) of the P 355 NL 2

Element Min Max Similar
V - 0.1000 -
Ti - 0.0300 -
Si - 0.5000 -
S - 0.0100 -
P - 0.0200 -
Ni - 0.5000 -
Nb+Ti+V - 0.1200 -
Nb - 0.0500 -
N - 0.0120 -
Mo - 0.0800 -
Mn 1.1000 1.7000 -
Cu - 0.3000 -
Cr+Cu+Mo - 0.4500 -
Cr - 0.3000 -
CEV - 0.4300 -
C - 0.1800 -
Al 0.0200 - -

Mechanical Properties of steel grade P 355 NL 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)
227 (≥) 381 (≥) 13 31 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 412

Physical Properties of steel grade P 355 NL 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
42 - -     0.33 -  
141 827 - 22.3 414   -  
561 - 41 32.2   133 433

Heat Treatment of steel grade P 355 NL 2

Heat treated : 1997°C - 1185°C

Technological Curves of steel grade P 355 NL 2

Cross Reference Table (Equivalent Grade) of P 355 NL 2

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