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ТТ7К12 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ТТ7К12

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ГОСТ ТТ7К12

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This page is mainly introduced the ТТ7К12 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ТТ7К12,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.

Steel Garde:ТТ7К12
Type:Special Alloy
Country:Russia
Standard:ГОСТ
Application:Carbide for cutting tools

Cross Reference Table(Equivalent Materials):

Material	Standard	Country
ТТ7К12	ГОСТ	Russia

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength	426～266	σb/MPa
Yield Strength	152	σ 0.2 ≥/MPa
Elongation	07	δ5≥(％)
ψ	-	ψ≥(％)
Akv	-	Akv≥/J
HBS	507～884	-
HRC	30	-

Physical Properties

Thermal expansion	93-66	e-6/K
Thermal conductivity	28-10	W/m.K
Specific heat	450-460	J/kg.K
Melting temperature	7041-9134	째C
Density	1355-9381	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)
ТТ7К12 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