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7Χ3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 7Χ3

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EN 7Χ3

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This page is mainly introduced the 7Χ3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 7Χ3,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel Garde:7Χ3
Type:Special Alloy
Country:Russia
Standard:EN
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
7Χ3	EN	Russia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	513～347	σb/MPa
Yield Strength	834	σ 0.2 ≥/MPa
Elongation	71	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	589～578	-
HRC	30	-

Physical Properties

Thermal expansion	26-71	e-6/K
Thermal conductivity	64-79	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	4008-9728	째C
Density	1871-8900	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)
7Χ3 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