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Description

Japan JIS G 4901 (2008), NCF 825 Specialsteel Corrosion-resisting and heat-resisting superalloy bars and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: NCF 825
Category Class Grade Standard Country Application
Steel GradesSpecialsteel NCF 825 JIS Japan Corrosion-resisting and heat-resisting superalloy bars

Chemical composition(mass fraction)(wt.%) of the NCF 825

C Si Mn P S Cr Ni Cu Al Ti Fe Mo
≤0.05 ≤1.00 ≤1.00 ≤0.03 ≤0.015 19.50 -23.00 38.00 -46.00 1.50 -3.00 ≤0.20 0.60 -1.20 remaining - ≥ 2.50 -3.50

Mechanical Properties of steel grade NCF 825

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)
579 (≥) 938 (≥) 42 41 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade NCF 825

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
23 - -     0.33 -  
742 222 - 21.3 324   -  
192 - 24 12.2   442 241

Heat Treatment of steel grade NCF 825

Heat treated : 1341°C - 1715°C

Technological Curves of steel grade NCF 825

Relevant standard of NCF 825

G 4901 (2008) Corrosion-resisting and heat-resisting superalloy bars G-4901-(2008).pdf

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