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A40

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A36 B
#A40

Description

Romania STAS/SR A40 Structural steel and A40 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: A40
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel A40 STAS/SR Romania Structural steel
12VMoCr10
14CrMo4
16Mo3
16Mo5
K410
K460
K510
A
A32
A36

Chemical composition(mass fraction)(wt.%) of the A40

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) Cu(%) Al(%)
0.18 0.10-0.50 0.90-1.60 0.040 0.040 0.20 0.40-0.70 0.08 Max 0.10 0.35 0.080

Mechanical Properties of steel grade A40

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)
838 (≥) 734 (≥) 34 42 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 324

Physical Properties of steel grade A40

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
43 - -     0.24 -  
789 118 - 44.3 423   -  
193 - 42 44.2   241 421

Heat Treatment of steel grade A40

Heat treated : 1397°C - 1557°C

Technological Curves of steel grade A40

Cross Reference Table (Equivalent Grade) of A40

Grade Standard Country Application
A40 JIS Japan Carbide for cutting tools
A40 STAS/SR Romania 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
A36 B
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