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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	932～380	σb/MPa
Yield Strength	375	σ 0.2 ≥/MPa
Elongation	12	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	811～221	-
HRC	30	-

Physical Properties

Thermal expansion	76-40	e-6/K
Thermal conductivity	57-27	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4165-4151	째C
Density	0540-3570	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