P4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of P4

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ASTM P4

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This page is mainly introduced the P4 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of P4,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Mold Steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.12
Si 0.10  0.40
Mn 0.20  0.60
P   0.030
S   0.030
Cr 4.00  5.25
Mo 0.40  1.00
V  
W  
Ni+Cu   0.75

Mechanical Properties

Tensile strength 027~347 σb/MPa
Yield Strength 667 σ 0.2 ≥/MPa
Elongation 59 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 546~336 -
HRC 30 -

Physical Properties

Thermal expansion 12-91 e-6/K
Thermal conductivity 26-12 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6503-9713 째C
Density 5443-8532 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)
P4 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

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