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H22

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T20821 T20822
#H22

Description

USA ASTM H22 Alloy tool steel and H22 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: H22
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy H22 ASTM USA Alloy tool steel
H12
T20812
H13
T20813
H14
T20814
H19
T20819
H21
T20821

Chemical composition(mass fraction)(wt.%) of the H22

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) V(%) W(%)
0.30～0.40 0.15～0.40 0.15～0.40 ≤0.030 ≤0.030 1.75～3.75 0.25～0.50 10.0～11.75

Mechanical Properties of steel grade H22

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)
668 (≥) 123 (≥) 13 42 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 222

Physical Properties of steel grade H22

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
32 - -     0.23 -  
188 494 - 44.3 233   -  
621 - 11 32.2   332 233

Heat Treatment of steel grade H22

Heat treated : 1678°C - 1632°C

Technological Curves of steel grade H22

Cross Reference Table (Equivalent Grade) of H22

Grade Standard Country Application
H22 ASTM USA Alloy tool steel
BH224/5 UK Carbide for cutting tools
BH224/5 UK Carbide for cutting tools
ISO H22 ISO ISO ISO standard heat-resisting alloy
SWRCH22A CNS China China Taiwan Structural steel
SWRCH22K CNS China China Taiwan Structural steel
GH220 GBT China wrought Fe/Ni-base superalloy
T20821 T20822
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