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Description

USA ASTM A2 Alloy tool steel and A2 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: A2
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy A2 ASTM USA Alloy tool steel
H25
T20825
H26
T20826
H41
T20841
H42
T20842
H43
T20843

Chemical composition(mass fraction)(wt.%) of the A2

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%) V(%)
0.95~1.05 0.10~0.50 0.40~1.00 ≤0.030 ≤0.030 4.75~5.50 0.90~1.40 0.15~0.50

Mechanical Properties of steel grade A2

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)
937 (≥) 915 (≥) 22 22 34 Solution and Aging, Annealing, Ausaging, Q+T,etc 442

Physical Properties of steel grade A2

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
13 - -     0.11 -  
477 677 - 23.3 113   -  
697 - 24 32.2   441 143

Heat Treatment of steel grade A2

Heat treated : 1837°C - 1558°C

Technological Curves of steel grade A2

Cross Reference Table (Equivalent Grade) of A2

Grade Standard Country Application
A2 ASTM USA Alloy tool steel
CPM 10V AISI USA Powder metallurgy tool steelCold work tool steel
BA2 UK Carbide for cutting tools
BA2 UK Carbide for cutting tools
BA2 UK Carbide for cutting tools
BA2 UK Carbide for cutting tools
BA2 UK Carbide for cutting tools
BA2 UK Carbide for cutting tools
ASTM A2Q AISI USA
A21 STAS/SR Romania Structural steel
HA200 AS Australia Australia Structural steel
CA2 AS Australia Australia Structural steel
HA250 AS Australia Australia Structural steel
CA220 AS Australia Australia Structural steel
CA260 AS Australia Australia Structural steel
VAT A286 ABNT Brazil Brazil Stainless steel
A20204 GBT China China structural steel and alloy steel
A20374 GBT China China structural steel and alloy steel
A20404 GBT China China structural steel and alloy steel
A20378 GBT China China structural steel and alloy steel

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