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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

Steel Garde:P4
Type:Tool Die Steels
Country:USA
Standard:ASTM
Application:Mold Steel

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
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	593～928	σb/MPa
Yield Strength	034	σ 0.2 ≥/MPa
Elongation	17	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	661～137	-
HRC	30	-

Physical Properties

Thermal expansion	39-08	e-6/K
Thermal conductivity	19-79	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	1318-0898	째C
Density	3782-8420	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