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D40

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D36 E
#D40

Description

Romania STAS/SR D40 Structural steel and D40 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: D40
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel D40 STAS/SR Romania Structural steel
K460
K510
A
A32
A36
A40
B
D
D32
D36

Chemical composition(mass fraction)(wt.%) of the D40

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) 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 0.080 0.35

Mechanical Properties of steel grade D40

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)
591 (≥) 854 (≥) 43 32 23 Solution and Aging, Annealing, Ausaging, Q+T,etc 332

Physical Properties of steel grade D40

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 - -     0.21 -  
388 171 - 21.3 231   -  
397 - 43 44.2   414 131

Heat Treatment of steel grade D40

Heat treated : 1399°C - 1519°C

Technological Curves of steel grade D40

Cross Reference Table (Equivalent Grade) of D40

Grade Standard Country Application
D40 STAS/SR Romania Structural steel
D36 E
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Jiangyou Longhai Special Steel Co.,Ltd.

Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...

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