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H12

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H11 T20813
#H12

Description

USA ASTM H12 Tool Die Steels Hot-Work Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Die Steels: H12
Category Class Grade Standard Country Application
Steel GradesTool Die Steels H12 ASTM USA Hot-Work Tool Steel

Chemical composition(mass fraction)(wt.%) of the H12

C Si Mn P S Cr Mo V W Ni＋Cu
0.30 -0.40 0.80 -1.20 0.20 -0.50 ≤0.030 ≤0.030 4.75 -5.50 1.25 -1.75 0.20 -0.50 1.00 -1.70 ≤0.75

Mechanical Properties of steel grade H12

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
625 (≥) 387 (≥) 31 31 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 344

Physical Properties of steel grade H12

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
34 - -     0.41 -  
986 438 - 44.3 211   -  
592 - 32 22.2   341 141

Heat Treatment of steel grade H12

Heat treated : 1966°C - 1357°C

Technological Curves of steel grade H12

Cross Reference Table (Equivalent Grade) of H12

Grade Standard Country Application
ASTM H12
AWS EH12K
SWRCH12R
SWRCH12A
SWRCH12K
SCH12
H12
BH12
BH12
15X18H12C4TЮ
03X18H12
03X18H12T
12X18H12T
08X18H12Б
H11 T20813
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