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A 731 Grade 29-4-2

Favorite Datasheet
A 529 Grade 42 A 791 Grade 29-4-2
#29-4-2

Description

USA SAE A 731/A 731M, A 731 Grade 29-4-2 Specialsteel Seamless, Welded Ferritic, and Martensitic Stainless Steel Pipe and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: A 731 Grade 29-4-2
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel A 731 Grade 29-4-2 Precipitation-Hardening SAE USA Seamless, Welded Ferritic, and Martensitic Stainless Steel Pipe

Chemical composition(mass fraction)(wt.%) of the A 731 Grade 29-4-2

C Si Mn P S Ni Cr Al Cu Ti Fe N Mo
≤0.01 ≤0.20 ≤0.30 ≤ ≥ ≤ ≥ 2.00 -2.50 28.00 -30.00 ≤ ≥ ≤0.15 ≤ ≥ ≤ ≥ ≤0.02 3.50 -4.20

Mechanical Properties of steel grade A 731 Grade 29-4-2

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)
244 (≥) 355 (≥) 12 24 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 213

Physical Properties of steel grade A 731 Grade 29-4-2

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
44 - -     0.13 -  
946 692 - 32.3 413   -  
949 - 11 11.2   123 343

Heat Treatment of steel grade A 731 Grade 29-4-2

Heat treated : 1246°C - 1943°C

Technological Curves of steel grade A 731 Grade 29-4-2

Cross Reference Table (Equivalent Grade) of A 731 Grade 29-4-2

Grade Standard Country Application
29-4-2
29-4-2
29-4-2
29-4-2
29-4-2(S44800)

Relevant standard of A 731 Grade 29-4-2

A 731/A 731M Seamless, Welded Ferritic, and Martensitic Stainless Steel Pipe A-731-A-731M.pdf
A 529 Grade 42 A 791 Grade 29-4-2
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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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