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China YB Q235NH 焊接H型钢(The welded steel H-section) and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q235NH / Q235NH
Category Grade Standard Region/Area Standard Content
Metals Q235NH YB 3301 China 焊接H型钢(The welded steel H-section)

Chemical composition(mass fraction)(wt.%) of the Q235NH

Element Min Max Similar
Zr - 0.1500 -
Mo - 0.3000 -
Ni - 0.6500 -
Cr 0.4000 0.8000 -
Cu 0.2500 0.5500 -
S - 0.0300 -
P - 0.0300 -
Mn 0.2000 0.6000 -
Si 0.1000 0.4000 -
C - 0.1200 -
Ni - 0.6500 -
Cr 0.4000 0.8000 -
Cu 0.2500 0.5500 -
S - 0.0300 -
P - 0.0300 -
Mn 0.2000 0.6000 -
Si 0.1000 0.4000 -
C - 0.1300 -
Ni - 0.6500 -
Cr 0.4000 0.8000 -
Cu 0.2500 0.5500 -
S - 0.0300 -
P - 0.0300 -
Mn 0.2000 0.6000 -
Si 0.1000 0.4000 -
C - 0.1300 -
Ni - 0.6500 -
Cr 0.4000 0.8000 -
Cu 0.2500 0.5500 -
S - 0.0300 -
P - 0.0300 -
Mn 0.2000 0.6000 -
Si 0.1000 0.4000 -
C - 0.1300 -

Mechanical Properties of steel grade Q235NH

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)
351 (≥) 937 (≥) 21 13 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade Q235NH

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
34 - -     0.32 -  
118 481 - 33.3 141   -  
843 - 43 11.2   122 441

Heat Treatment of steel grade Q235NH

Heat treated : 1129°C - 1639°C

Technological Curves of steel grade Q235NH

Cross Reference Table (Equivalent Grade) of Q235NH

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