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X8Ni9

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X7CrNiMoBNb16-6 1.5662
#X8Ni9 #1-5662

Description

France AFNOR NF EN 10028-4, NF EN 10222-3, NF EN 10269, X8Ni9 Specialsteel Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: X8Ni9
Category Class Grade Standard Country Application
Steel GradesSpecialsteel X8Ni9 AFNOR France Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties

Chemical composition(mass fraction)(wt.%) of the X8Ni9

C Si Mn P S Cr Ni Mo V
≤0.10 ≤0.35 0.30 -0.80 ≤0.020 ≤0.010 ≤ ≥ 8.50 -10.00 ≤0.10 ≤0.05

Mechanical Properties of steel grade X8Ni9

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)
421 (≥) 432 (≥) 33 11 42 Solution and Aging, Annealing, Ausaging, Q+T,etc 441

Physical Properties of steel grade X8Ni9

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
12 - -     0.11 -  
255 455 - 13.3 442   -  
163 - 12 11.2   213 324

Heat Treatment of steel grade X8Ni9

Heat treated : 1997°C - 1268°C

Technological Curves of steel grade X8Ni9

Cross Reference Table (Equivalent Grade) of X8Ni9

Grade Standard Country Application
X8Ni9
GX8Ni9
X8Ni9
X8Ni9

Relevant standard of X8Ni9

NF EN 10028-4 Flat products made of steels for pressure purposes - Part 4: Nickel alloy steels with specified low temperature properties NF-EN-10028-4.pdf
NF EN 10222-3 Steel forgings for pressure purposes - Part 3: Nickel steels with specified low temperature properties NF-EN-10222-3.pdf
NF EN 10269 Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties NF-EN-10269.pdf
X7CrNiMoBNb16-6 1.5662
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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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