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 831~361 σb/MPa
Yield Strength 745 σ 0.2 ≥/MPa
Elongation 19 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 628~413 -
HRC 30 -

Physical Properties

Thermal expansion 57-64 e-6/K
Thermal conductivity 64-32 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 3758-2117 째C
Density 0282-8092 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