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NC15Fe7TAApplication:Steel Exhaust Valves
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy NC15Fe7TAAFNORFrance

Chemical composition%of the ladle analysis of gradeNC15Fe7TA

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)Mo(%)Cu(%)Co(%)Nb(%)Al(%)Ti(%)Other(%)
Max 0.08Max 0.50Max 1.00Max 0.015Max 0.01514.0-17.0RemainMax 0.50Max 0.50Max 1.00Nb+Ta 0.70-1.200.40-1.002.25-2.75Fe 5.00-9.00
NC15Fe7TA
Mechanical properties of gradeNC15Fe7TA
Proof strength
Rp0.2(MPa)
Tensile strength
Rm(MPa)
Impact energy
KV(J)
Elongation at fracture
A(%)
Reduction in cross section on fracture
Z(%)
As-Heat-Treated ConditionBrinell hardness(HBW)
372(≥)884(≥)323244Solution and Aging,Annealing,Ausaging,Q+T,etc432
Physical properties of gradeNC15Fe7TA
PropertyDensity
kg/dm3
Temperature T
°C/F
Specific heat
J/kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
Modulus of elasticity
kN/mm2
Expansion rate
657(≥)398(≥)244144Solution and Aging,Annealing,Ausaging,Q+T,etc323
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
254392652
NC15Fe7TARange of products
Product typeProductsDimensionProcessesDeliver Status
Plates/SheetsPlates/Sheets0.08-200mm(T)*W*LForging,hot rolling and cold rollingAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Steel BarRound Bar,Flat Bar,Square BarΦ8-1200mm*LForging,hot rolling and cold rolling,CastBlack,Rough Turning,Shot Blasting,
Coil/StripSteel Coil/Steel Strip0.03-16.0x1200mmCold-Rolled&Hot-RolledAnnealed,Solution and Aging,Q+T,ACID-WASHED,Shot Blasting
Pipes/TubesSeamless Pipes/Tubes,Welded Pipes/TubesOD:6-219mm x WT:0.5-20.0mmHot extrusion,Cold Drawn,WeldedAnnealed,Solution and Aging,Q+T,ACID-WASHED
Cross Reference Table(Equivalent Grade)
GradeStandardCountryApplication
NC15Fe7TAAFNORFrance
Valve steels and alloys for internal combustion engines

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