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ТТ7К12

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ТТ7К12 ТТ8К6
#ТТ7К12

Description

Russia ГОСТ ТТ7К12 Carbide for cutting tools and ТТ7К12 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: ТТ7К12
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy ТТ7К12 ГОСТ Russia Carbide for cutting tools
Т14К8
Т14К8
Т14К8
Т14К8
Т14К8
Т5К10
Т5К10
Т5К12
Т5К12
ТТ7К12

Chemical composition(mass fraction)(wt.%) of the ТТ7К12

Co(%)
12

Mechanical Properties of steel grade ТТ7К12

Yield
Rp0.2 (MPa)		 Tensile
Rm (MPa)		 Impact
KV/Ku (J)		 Elongation
A (%)		 Reduction in cross section on fracture
Z (%)		 As-Heat-Treated Condition Brinell hardness (HBW)
425 (≥) 159 (≥) 21 31 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 112

Physical Properties of steel grade ТТ7К12

Temperature
(°C)		 Modulus of elasticity
(GPa)		 Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)		 Specific thermal capacity
(J/kg·°C)		 Specific electrical resistivity
(Ω mm²/m)		 Density
(kg/dm³)		 Poisson’s coefficient, ν
11 - -     0.32 -  
977 416 - 44.3 132   -  
953 - 11 43.2   422 233

Heat Treatment of steel grade ТТ7К12

Heat treated : 1142°C - 1458°C

Technological Curves of steel grade ТТ7К12

Cross Reference Table (Equivalent Grade) of ТТ7К12

Grade Standard Country Application
ТТ7К12 ГОСТ Russia Carbide for cutting tools
ТТ7К12 ГОСТ Russia Carbide for cutting tools
ТТ7К12 ТТ8К6
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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