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China 宝钢Q/BQB Q450NQR1 耐腐蚀结构用热连轧钢板及钢带 and Mechanical Properties, Chemical Element, Cross Reference.

Datasheet for: Metals: Q450NQR1 / Q450NQR1
Category Grade Standard Region/Area Standard Content
Metals Q450NQR1 Q/BQB 340 China 耐腐蚀结构用热连轧钢板及钢带

Chemical composition(mass fraction)(wt.%) of the Q450NQR1

Element Min Max Similar
Ni - 0.6500 -
Cu 0.2000 0.5500 -
Cr 0.3000 1.2500 -
S - 0.0200 -
P - 0.0250 -
Mn - 1.5000 -
Si - 0.7500 -
C - 0.1200 -

Mechanical Properties of steel grade Q450NQR1

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)
541 (≥) 513 (≥) 24 24 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade Q450NQR1

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 - -     0.34 -  
487 585 - 22.3 222   -  
544 - 33 41.2   444 414

Heat Treatment of steel grade Q450NQR1

Heat treated : 1541°C - 1239°C

Technological Curves of steel grade Q450NQR1

Cross Reference Table (Equivalent Grade) of Q450NQR1

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