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B 729 N08024

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B 475 N08024 N08024
#20Mo-4 #N08024

Description

USA SAE B 729 (2009), B 729 N08024 Specialsteel Standard Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 729 N08024
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 729 N08024 Austenite SAE USA Standard Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube

Chemical composition(mass fraction)(wt.%) of the B 729 N08024

C Mn Si P S Cr Ni Mo Cu Nb
≤0.03 ≤1.00 ≤0.50 ≤0.035 ≤0.035 22.50 -25.00 35.00 -40.00 3.50 -5.00 0.50 -1.50 0.15 -0.35

Mechanical Properties of steel grade B 729 N08024

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)
937 (≥) 157 (≥) 23 41 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 131

Physical Properties of steel grade B 729 N08024

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
31 - -     0.12 -  
783 513 - 24.3 414   -  
139 - 22 43.2   442 343

Heat Treatment of steel grade B 729 N08024

Heat treated : 1388°C - 1568°C

Technological Curves of steel grade B 729 N08024

Cross Reference Table (Equivalent Grade) of B 729 N08024

Grade Standard Country Application
20Cb-3,20Mo-4,20Mo-6

Relevant standard of B 729 N08024

B 729 (2009) Standard Specification for Seamless UNS N08020, UNS N08026, and UNS N08024 Nickel-Alloy Pipe and Tube B-729-(2009).pdf
B 475 N08024 N08024
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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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