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ISO 8aApplication:ISO standard thermal deformation of stainless steel
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy ISO 8aISOISO

Chemical composition%of the ladle analysis of gradeISO 8a

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Mo(%)
Max 0.090Max 1.50Max 1.50Max 0.040Min 0.1516.0-18.0Max 0.60
ISO standard thermal deformation of stainless steel
Mechanical properties of gradeISO 8a
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)
899(≥)725(≥)244333Solution and Aging,Annealing,Ausaging,Q+T,etc233
Physical properties of gradeISO 8a
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
572(≥)827(≥)431211Solution and Aging,Annealing,Ausaging,Q+T,etc241
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
416745798
ISO 8aRange 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
Z4CMN18-08AzISOISO
Stainless steels for general purposes. Plates, wide strips and strips
Z55CMN20-08AzISOISO
Valve steels and alloys for internal combustion engines
08X16Γ8AM2ISOISO
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
08X16Γ8AM2ISOISO
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
10X18AH5ISOISO
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
ISO 8AISOISO
Stainless steels - Chemical composition

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