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4J29

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4J28 4J32
#4J29

Description

China GBT 4J29 expansionalloy and 4J29 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 4J29
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 4J29 GBT China expansionalloy
3J22
3J40
3J53
3J53P
3J53Y
3J58
3J60
3J63
4J06
4J28

Chemical composition(mass fraction)(wt.%) of the 4J29

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%) Co(%) Fe(%)
0.03 ≤0.30 ≤0.50 0.020 0.020 ≤0.2 28.5-29.5 ≤0.20 ≤0.2 16.8-17.8 Bal

Mechanical Properties of steel grade 4J29

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)
585 (≥) 668 (≥) 34 22 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 431

Physical Properties of steel grade 4J29

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
11 - -     0.12 -  
783 688 - 14.3 331   -  
959 - 41 12.2   222 431

Heat Treatment of steel grade 4J29

Heat treated : 1836°C - 1336°C

Technological Curves of steel grade 4J29

Cross Reference Table (Equivalent Grade) of 4J29

Grade Standard Country Application
4J29 GBT China expansionalloy
4J28 4J32
Available Suppliers
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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