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Description

Russia ГОСТ у7,у7A Carbide for cutting tools and у7,у7A Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: у7,у7A
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy у7,у7A ГОСТ Russia Carbide for cutting tools
у13-1
у13-1
у13-3
у13-3
у13A-1
у13A-1
у13A-2
у13A-2
у13A-3
у13A-3

Chemical composition(mass fraction)(wt.%) of the у7,у7A

Mechanical Properties of steel grade у7,у7A

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)
988 (≥) 227 (≥) 42 12 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade у7,у7A

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
34 - -     0.23 -  
778 255 - 11.3 221   -  
477 - 22 31.2   142 132

Heat Treatment of steel grade у7,у7A

Heat treated : 1114°C - 1192°C

Technological Curves of steel grade у7,у7A

Cross Reference Table (Equivalent Grade) of у7,у7A

Grade Standard Country Application
у7,у7A ГОСТ Russia Carbide for cutting tools

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