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Description

Russia ГОСТ у8гA-3 Carbide for cutting tools and у8гA-3 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: у8гA-3
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy у8гA-3 ГОСТ Russia Carbide for cutting tools
у8A-3
у8г-1
у8г-1
у8г-3
у8г-3
у8гA-1
у8гA-1
у8гA-2
у8гA-2
у8гA-3

Chemical composition(mass fraction)(wt.%) of the у8гA-3

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.80-0.90 0.17-0.33 0.33-0.58 ≤0.025 ≤0.018 0.20-0.40 0.25 0.25

Mechanical Properties of steel grade у8гA-3

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)
467 (≥) 526 (≥) 41 12 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 134

Physical Properties of steel grade у8гA-3

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
14 - -     0.33 -  
893 783 - 44.3 444   -  
843 - 33 24.2   133 214

Heat Treatment of steel grade у8гA-3

Heat treated : 1981°C - 1649°C

Technological Curves of steel grade у8гA-3

Cross Reference Table (Equivalent Grade) of у8гA-3

Grade Standard Country Application
у8гA-3 ГОСТ Russia Carbide for cutting tools
у8гA-3 ГОСТ Russia Carbide for cutting tools

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