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Р18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Р18

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ГОСТ Р18

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This page is mainly introduced the Р18 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of Р18,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel Garde:Р18
Type:Special Alloy
Country:France
Standard:ГОСТ
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
Р18	ГОСТ	France
Р18К5Ф2	EN	Russia
Р18К5Ф2	EN	Russia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	298～743	σb/MPa
Yield Strength	519	σ 0.2 ≥/MPa
Elongation	37	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	270～986	-
HRC	30	-

Physical Properties

Thermal expansion	03-22	e-6/K
Thermal conductivity	63-31	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4183-3227	째C
Density	5980-3961	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)
Р18 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