H24 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of H24

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ASTM H24

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This page is mainly introduced the H24 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of H24,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Hot-Work Tool Steel

Cross Reference Table(Equivalent Materials):

Material Standard Country
H24 SAE USA

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 0.42  0.53
Si 0.15  0.40
Mn 0.15  0.40
P   0.030
S   0.030
Cr 2.50  3.50
Mo  
V 0.40  0.60
W 14.00  16.00
Ni+Cu   0.75

Mechanical Properties

Tensile strength 222~736 σb/MPa
Yield Strength 296 σ 0.2 ≥/MPa
Elongation 52 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 153~432 -
HRC 30 -

Physical Properties

Thermal expansion 91-27 e-6/K
Thermal conductivity 19-87 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3940-6200 째C
Density 8990-5903 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
H24 Tool Die Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download