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P40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of P40

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JIS P40

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This page is mainly introduced the P40 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of P40,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
P40

Steel Garde:P40
Type:Special Alloy
Country:Japan
Standard:JIS
Application:Carbide for cutting tools

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	428～352	σb/MPa
Yield Strength	246	σ 0.2 ≥/MPa
Elongation	95	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	656～550	-
HRC	30	-

Physical Properties

Thermal expansion	07-33	e-6/K
Thermal conductivity	39-80	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	6533-8840	째C
Density	2779-7083	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)
P40 Special Alloy	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