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H12Application:Alloy tool steel
CategoryTypeSteel gradeStandardCountry
Grades Special Alloy H12ASTMUSA

Chemical composition%of the ladle analysis of gradeH12

C(%)Si(%)Mn(%)P(%)S(%)Cr(%)Mo(%)V(%)W(%)
0.30~0.400.80~1.200.20~0.50≤0.030≤0.0304.75~5.501.25~1.750.20~0.501.00~1.70
H12
Mechanical properties of gradeH12
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)
435(≥)871(≥)442242Solution and Aging,Annealing,Ausaging,Q+T,etc331
Physical properties of gradeH12
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
436(≥)415(≥)332324Solution and Aging,Annealing,Ausaging,Q+T,etc211
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0)N/mm2
Creep rupture strength
(10000h)
(Rp1,0)N/mm2
716564568
H12Range 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
15X18H12C4TЮASTMUSA
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08X19H12TΦASTMUSA
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08X20H12AБΦASTMUSA
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20X12H12Γ6ASTMUSA
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ISO H12ASTMUSA
Stainless steels - Chemical composition
H12ASTMUSA
Hot-Work Tool Steel
H12ASTMUSA
Hot-Work Tool Steel

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