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Description

Russia ГОСТ у8A-1 Carbide for cutting tools and у8A-1 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: у8A-1
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy у8A-1 ГОСТ Russia Carbide for cutting tools
G20
G30
G30
H03
H03
S25
S25
у8-3
у8-3
у8A-1

Chemical composition(mass fraction)(wt.%) of the у8A-1

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Cu(%)
0.75-0.84 0.17-0.33 0.17-0.28 ≤0.025 ≤0.018 ≤0.20 ≤0.25 0.25

Mechanical Properties of steel grade у8A-1

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)
973 (≥) 351 (≥) 33 33 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 232

Physical Properties of steel grade у8A-1

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 - -     0.32 -  
179 374 - 33.3 333   -  
356 - 42 32.2   222 411

Heat Treatment of steel grade у8A-1

Heat treated : 1261°C - 1293°C

Technological Curves of steel grade у8A-1

Cross Reference Table (Equivalent Grade) of у8A-1

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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