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4J44

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4J43 4J45
#4J44

Description

China GBT 4J44 expansionalloy and 4J44 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: 4J44
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy 4J44 GBT China expansionalloy
4J28
4J29
4J32
4J33
4J34
4J36
4J38
4J40
4J42
4J43

Chemical composition(mass fraction)(wt.%) of the 4J44

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%) Co(%) Fe(%)
0.30 ≤0.30 ≤0.50 0.020 0.020 ≤0.2 34.2-35.2 ≤0.20 ≤0.2 8.5-9.5 Bal

Mechanical Properties of steel grade 4J44

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)
333 (≥) 773 (≥) 43 41 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 124

Physical Properties of steel grade 4J44

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 - -     0.44 -  
293 982 - 33.3 331   -  
376 - 21 42.2   132 442

Heat Treatment of steel grade 4J44

Heat treated : 1853°C - 1293°C

Technological Curves of steel grade 4J44

Cross Reference Table (Equivalent Grade) of 4J44

Grade Standard Country Application
4J44 GBT China expansionalloy
4J43 4J45
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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