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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)
918 (≥) 878 (≥) 31 22 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 132

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
44 - -     0.43 -  
964 229 - 42.3 234   -  
714 - 24 33.2   431 321

Heat Treatment of steel grade X8Ni9

Heat treated : 1226°C - 1328°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.

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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