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P20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of P20

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ASTM P20

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This page is mainly introduced the P20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of P20,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Mold Steel

Steel Garde:P20
Type:Tool Die Steels
Country:USA
Standard:ASTM
Application:Mold Steel

Relevant products:

P20 tool steel round bar

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
1.2311,40CrMnMoS8-6,1.2312,P20,40CMD8	DIN	Germany

Chemical composition(mass fraction)(wt.%)

Elements	Min.（≥）	Max.（≤）
C	0.28	0.40
Si	0.20	0.80
Mn	0.60	1.00
P		0.030
S		0.030
Cr	1.40	2.00
Mo	0.30	0.55
V
W
Ni＋Cu		0.75

Mechanical Properties

Tensile strength	311～572	σb/MPa
Yield Strength	612	σ 0.2 ≥/MPa
Elongation	19	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	649～775	-
HRC	30	-

Physical Properties

Thermal expansion	41-52	e-6/K
Thermal conductivity	95-85	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0959-8178	째C
Density	7752-2637	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)
P20 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