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ТТ20К9

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ТТ20К9 SS14:1770
#ТТ20К9

Description

Russia ГОСТ ТТ20К9 Carbide for cutting tools and ТТ20К9 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: ТТ20К9
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy ТТ20К9 ГОСТ Russia Carbide for cutting tools
Т5К10
Т5К12
Т5К12
ТТ7К12
ТТ7К12
ТТ8К6
ТТ8К6
ТТ10К8-Б
ТТ10К8-Б
ТТ20К9

Chemical composition(mass fraction)(wt.%) of the ТТ20К9

Co(%)
9

Mechanical Properties of steel grade ТТ20К9

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)
426 (≥) 196 (≥) 32 23 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 413

Physical Properties of steel grade ТТ20К9

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
12 - -     0.31 -  
427 893 - 34.3 123   -  
821 - 41 12.2   421 313

Heat Treatment of steel grade ТТ20К9

Heat treated : 1174°C - 1247°C

Technological Curves of steel grade ТТ20К9

Cross Reference Table (Equivalent Grade) of ТТ20К9

Grade Standard Country Application
ТТ20К9 ГОСТ Russia Carbide for cutting tools
ТТ20К9 ГОСТ Russia Carbide for cutting tools
ТТ20К9 SS14:1770
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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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