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P420QH

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P420NH 410004
#P420QH

Description

Spain UNE P420QH Spain structural alloy steel and P420QH Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: P420QH
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel P420QH UNE Spain Spain structural alloy steel
E8222
F8231
FB232
F8233
E8241
P285NH
P285QH
P355NH
P355QH1
P420NH

Chemical composition(mass fraction)(wt.%) of the P420QH

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) N(%) Cu(%)
0.20 0. 10—0. 60 1.00—1.70 0. 025 0.015 0. 30 <1.00 0.10 <0.201 <0.020 <0.20

Mechanical Properties of steel grade P420QH

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)
464 (≥) 362 (≥) 34 41 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade P420QH

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
41 - -     0.41 -  
188 158 - 44.3 242   -  
944 - 12 34.2   121 444

Heat Treatment of steel grade P420QH

Heat treated : 1788°C - 1192°C

Technological Curves of steel grade P420QH

Cross Reference Table (Equivalent Grade) of P420QH

Grade Standard Country Application
P420QH UNE Spain Spain structural alloy steel
P420NH 410004
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

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...

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