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Description

Russia ГОСТ у9A-2 Carbide for cutting tools and у9A-2 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: у9A-2
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy у9A-2 ГОСТ Russia Carbide for cutting tools
у8гA-2
у8гA-3
у8гA-3
у9-1
у9-1
у9-3
у9-3
у9A-1
у9A-1
у9A-2

Chemical composition(mass fraction)(wt.%) of the у9A-2

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.85-0.94 0.17-0.33 0.17-0.28 ≤0.025 ≤0.018 ≤0.12 0.12 0.20

Mechanical Properties of steel grade у9A-2

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)
761 (≥) 517 (≥) 44 42 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade у9A-2

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
41 - -     0.34 -  
748 883 - 41.3 243   -  
347 - 32 22.2   322 221

Heat Treatment of steel grade у9A-2

Heat treated : 1282°C - 1315°C

Technological Curves of steel grade у9A-2

Cross Reference Table (Equivalent Grade) of у9A-2

Grade Standard Country Application
у8-3 ГОСТ Russia Carbide for cutting tools
у8-3 ГОСТ Russia Carbide for cutting tools
у8A-1 ГОСТ Russia Carbide for cutting tools
у8A-1 ГОСТ Russia Carbide for cutting tools
у8A-2 Russia Carbide for cutting tools
у8A-2 Russia Carbide for cutting tools
у8A-3 ГОСТ Russia Carbide for cutting tools
у8A-3 ГОСТ Russia Carbide for cutting tools
у8г-1 Russia Carbide for cutting tools
у8г-1 Russia Carbide for cutting tools
у8г-3 ГОСТ Russia Carbide for cutting tools
у8г-3 ГОСТ Russia Carbide for cutting tools
у8гA-1 ГОСТ Russia Carbide for cutting tools
у8гA-1 ГОСТ Russia Carbide for cutting tools
у8гA-2 ГОСТ Russia Carbide for cutting tools
у8гA-2 ГОСТ Russia Carbide for cutting tools
у8гA-3 ГОСТ Russia Carbide for cutting tools
у8гA-3 ГОСТ Russia Carbide for cutting tools
у9-1 ГОСТ Russia Carbide for cutting tools
у9-1 ГОСТ Russia Carbide for cutting tools

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