USA ASTM A4 Alloy tool steel and A4 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Type | Steel Grade | Standard | Country | Application |
---|---|---|---|---|---|
Steel Grades | Tool Steel And Hard Alloy | A4 | ASTM | USA | Alloy tool steel |
H41 |
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T20841 |
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H42 |
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T20842 |
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H43 |
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T20843 |
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A2 |
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T30102 |
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A3 |
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T30103 |
C(%) | Si(%) | Mn(%) | P(%) | S(%) | Cr(%) | Mo(%) |
---|---|---|---|---|---|---|
0.95~1.05 | 0.10~0.50 | 1.80~2.20 | ≤0.030 | ≤0.030 | 0.90~1.20 | 0.90~1.40 |
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) |
---|---|---|---|---|---|---|
759 (≥) | 372 (≥) | 22 | 43 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 322 |
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 | - | - | 0.44 | - | |||
749 | 814 | - | 21.3 | 241 | - | ||
965 | - | 23 | 41.2 | 431 | 121 |
Heat treated : 1747°C - 1957°C
Grade | Standard | Country | Application |
---|---|---|---|
A4 | ASTM | USA | Alloy tool steel |
A40 | JIS | Japan | Carbide for cutting tools |
ISO A4 | ISO | ISO | ISO standard thermal deformation of stainless steel |
A4 | STAS/SR | Romania | Structural steel |
A40 | STAS/SR | Romania | Structural steel |
HA4N | AS | Australia | Australia Structural steel |
CA4 | AS | Australia | Australia Structural steel |
HA400 | AS | Australia | Australia Structural steel |
SMA400AW | CNS | China | China Taiwan Structural steel |
SMA400BW | CNS | China | China Taiwan Structural steel |
SMA400CW | CNS | China | China Taiwan Structural steel |
SMA400AP | CNS | China | China Taiwan Structural steel |
SMA400BP | CNS | China | China Taiwan Structural steel |
SMA400CP | CNS | China | China Taiwan Structural steel |
SMA490AW | CNS | China | China Taiwan Structural steel |
SMA490BW | CNS | China | China Taiwan Structural steel |
SMA490CW | CNS | China | China Taiwan Structural steel |
SMA490AP | CNS | China | China Taiwan Structural steel |
SMA490BP | CNS | China | China Taiwan Structural steel |
SMA490CP | CNS | China | China Taiwan Structural steel |
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