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NiFe 25 Cr 20 NbTi

Favorite Datasheet
HARPER 200 R20033
#R-20

Description

USA UNS SAE J 775 (2004), NiFe 25 Cr 20 NbTi Specialsteel Engine poppet valve information report and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: NiFe 25 Cr 20 NbTi
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel NiFe 25 Cr 20 NbTi Precipitation-Hardening UNS USA Engine poppet valve information report

Chemical composition(mass fraction)(wt.%) of the NiFe 25 Cr 20 NbTi

C Si Mn Cr Ni Mo Co W Al Cu Ti Fe Nb
≤0.12 ≤0.30 ≤0.80 ≤19.00 ≤14.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤1.60

Mechanical Properties of steel grade NiFe 25 Cr 20 NbTi

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)
539 (≥) 216 (≥) 33 42 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical Properties of steel grade NiFe 25 Cr 20 NbTi

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
41 - -     0.33 -  
378 339 - 31.3 211   -  
631 - 14 13.2   122 434

Heat Treatment of steel grade NiFe 25 Cr 20 NbTi

Heat treated : 1954°C - 1227°C

Technological Curves of steel grade NiFe 25 Cr 20 NbTi

Cross Reference Table (Equivalent Grade) of NiFe 25 Cr 20 NbTi

Grade Standard Country Application
R-20
25Cr-20Ni
25Cr-20Ni+
29Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
25Cr-20Ni
29Cr-20Ni
29Cr-20Ni
29Cr-20Ni

Relevant standard of NiFe 25 Cr 20 NbTi

SAE J 775 (2004) Engine poppet valve information report SAE-J-775-(2004).pdf
HARPER 200 R20033
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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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