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12X18H9Application:Austenitic
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy 12X18H9ГОСТRussia

Chemical composition%of the ladle analysis of grade12X18H9

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Ni(%)Mo(%)W(%)Ti(%)
Max 0.12Max 0.80Max 2.00Max 0.035Max 0.0217.0-19.08.00-10.0Max 0.30Max 0.20Max 0.50
12X18H9
Mechanical properties of grade12X18H9
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)
293(≥)685(≥)132431Solution and Aging,Annealing,Ausaging,Q+T,etc111
Physical properties of grade12X18H9
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
328(≥)827(≥)211111Solution and Aging,Annealing,Ausaging,Q+T,etc321
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
118515861
12X18H9Range 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
12X18H9ГОСТRussia
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
12X18H9TГОСТRussia
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition
12X18H9CMPГОСТRussia
Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

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