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у7,у7A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of у7,у7A

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ГОСТ у7,у7A

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This page is mainly introduced the у7,у7A chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of у7,у7A,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel Garde:у7,у7A
Type:Special Alloy
Country:Russia
Standard:ГОСТ
Application:Carbide for cutting tools

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	312～389	σb/MPa
Yield Strength	046	σ 0.2 ≥/MPa
Elongation	25	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	796～731	-
HRC	30	-

Physical Properties

Thermal expansion	72-45	e-6/K
Thermal conductivity	21-53	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	0391-3935	째C
Density	4087-0946	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)
у7,у7A 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