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ISO X6CrNi25 21Application:ISO standard Austenite size heat resistant steel
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy ISO X6CrNi25 21ISOISO

Chemical composition%of the ladle analysis of gradeISO X6CrNi25 21

C(％)Si(％)Mn(％)P(％)S(％)Cr(％)Ni(％)
Max 0.08Max 1.5Max 2.0Max 0.045Max 0.03024.0-26.019.0-22.0
ISO standard  Austenite size heat resistant steel
Mechanical properties of gradeISO X6CrNi25 21
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)
488(≥)943(≥)421421Solution and Aging,Annealing,Ausaging,Q+T,etc234
Physical properties of gradeISO X6CrNi25 21
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
473(≥)579(≥)414212Solution and Aging,Annealing,Ausaging,Q+T,etc114
Temp.
°C/°F		Creep strain limit
(10000h)
(Rp1,0)N/mm2		Creep rupture strength
(10000h)
(Rp1,0)N/mm2
822631494
ISO X6CrNi25 21Range 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
X6CrNi25-21ISOISO
Steel forgings and rolled or forged bars for pressure purposes - Technical delivery conditions - Part 5: Stainless steels

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