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4J34

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4J33 4J36
#4J34

Description

China GBT 4J34 expansionalloy and 4J34 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 4J34
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 4J34 GBT China expansionalloy
3J53P
3J53Y
3J58
3J60
3J63
4J06
4J28
4J29
4J32
4J33

Chemical composition(mass fraction)(wt.%) of the 4J34

C(％) Si(％) Mn(％) P(％) S(％) Ni(％) Co(%) Fe(%)
0.05 ≤0.30 ≤0.50 0.020 0.020 28.5-29.5 19.5-20.5 Bal

Mechanical Properties of steel grade 4J34

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)
288 (≥) 913 (≥) 24 41 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 312

Physical Properties of steel grade 4J34

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
23 - -     0.23 -  
476 797 - 32.3 422   -  
541 - 21 13.2   413 233

Heat Treatment of steel grade 4J34

Heat treated : 1565°C - 1169°C

Technological Curves of steel grade 4J34

Cross Reference Table (Equivalent Grade) of 4J34

Grade Standard Country Application
4J34 GBT China expansionalloy
4J33 4J36
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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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