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NCF 718

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NCF 690 TP NCF 718
#NCF-718

Description

Japan JIS G 4901 (2008), NCF 718 Specialsteel Corrosion-resisting and heat-resisting superalloy bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: NCF 718
Category Class Grade Standard Country Application
Steel GradesSpecialsteel NCF 718 JIS Japan Corrosion-resisting and heat-resisting superalloy bars

Chemical composition(mass fraction)(wt.%) of the NCF 718

C Si Mn P S Cr Ni Cu Al Ti Fe Nb+Ta Mo B
≤0.08 ≤0.35 ≤0.35 ≤0.015 ≤0.015 17.00 -21.00 50.00 -55.00 ≤0.30 0.20 -0.80 0.65 -1.15 remaining - ≥ 4.75 -5.50 2.80 -3.30 ≤0.006

Mechanical Properties of steel grade NCF 718

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)
956 (≥) 719 (≥) 21 41 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 241

Physical Properties of steel grade NCF 718

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
24 - -     0.34 -  
717 694 - 12.3 441   -  
466 - 11 34.2   442 112

Heat Treatment of steel grade NCF 718

Heat treated : 1376°C - 1751°C

Technological Curves of steel grade NCF 718

Relevant standard of NCF 718

G 4901 (2008) Corrosion-resisting and heat-resisting superalloy bars G-4901-(2008).pdf
NCF 690 TP NCF 718
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Jiangyou Longhai Special Steel Co.,Ltd.

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