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A 829 4142

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A 829 4140 A 829 4145
#29-4

Description

USA SAE A 829/A 829M (2011), A 829 4142 Specialsteel Alloy Structural Steel Plates and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 829 4142
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 829 4142 Precipitation-Hardening SAE USA Alloy Structural Steel Plates

Chemical composition(mass fraction)(wt.%) of the A 829 4142

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo
≤0.01 ≤0.20 ≤0.30 ≤ ≥ ≤ ≥ ≤0.15 28.00 -30.00 ≤ ≥ ≤0.15 ≤ ≥ ≤ ≥ ≤0.02 3.50 -4.20

Mechanical Properties of steel grade A 829 4142

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)
949 (≥) 258 (≥) 14 41 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade A 829 4142

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
32 - -     0.33 -  
896 276 - 31.3 414   -  
215 - 44 42.2   311 223

Heat Treatment of steel grade A 829 4142

Heat treated : 1919°C - 1665°C

Technological Curves of steel grade A 829 4142

Cross Reference Table (Equivalent Grade) of A 829 4142

Grade Standard Country Application
29-4
29-4C
29-4-2
29-4
29-4-2
29-4C
29-4
29-4-2
29-4
29-4-2
29-4C(S44735)
29-4-2(S44800)
X2CrMoTi29-4
X2CrMoTi29-4

Relevant standard of A 829 4142

A 829/A 829M (2011) Alloy Structural Steel Plates A-829-A-829M-(2011).pdf
A 829 4140 A 829 4145
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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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