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H24

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T20823 T20824
#H24

Description

USA ASTM H24 Alloy tool steel and H24 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: H24
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy H24 ASTM USA Alloy tool steel
H14
T20814
H19
T20819
H21
T20821
H22
T20822
H23
T20823

Chemical composition(mass fraction)(wt.%) of the H24

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) V(%) W(%)
0.42～0.53 0.15～0.40 0.15～0.40 ≤0.030 ≤0.030 2.50～3.50 0.40～0.60 14.0～16.0

Mechanical Properties of steel grade H24

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)
891 (≥) 387 (≥) 12 24 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade H24

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
42 - -     0.21 -  
965 212 - 21.3 421   -  
418 - 34 23.2   432 342

Heat Treatment of steel grade H24

Heat treated : 1129°C - 1184°C

Technological Curves of steel grade H24

Cross Reference Table (Equivalent Grade) of H24

Grade Standard Country Application
H24 ASTM USA Alloy tool steel
08X15H24Φ4TP Austenitic
08X15H24Φ4TP ГОСТ Russia Austenitic steel
SWRCH24K CNS China China Taiwan Structural steel
EN H240LA EN Euronorm Euronorm Structural steel
T20823 T20824
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