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X9940

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X9931 K1070S
#X9940

Description

Australia AS X9940 Australia Structural steel and X9940 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: X9940
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel X9940 AS Australia Australia Structural steel
9260H
926LH
X9315H
X4036
4130
4140
4340
X7039
X7232
X9931

Chemical composition(mass fraction)(wt.%) of the X9940

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％)
0.36-0.44 0.10-0.35 0.45-0.70 0.04 0.04 0.50-0.80 2.30-2.80 0.45-0.65

Mechanical Properties of steel grade X9940

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)
476 (≥) 368 (≥) 33 14 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 234

Physical Properties of steel grade X9940

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
21 - -     0.31 -  
199 375 - 23.3 424   -  
533 - 24 43.2   312 434

Heat Treatment of steel grade X9940

Heat treated : 1367°C - 1398°C

Technological Curves of steel grade X9940

Cross Reference Table (Equivalent Grade) of X9940

Grade Standard Country Application
X9940 AS Australia Australia Structural steel
X9940 AS Australia Australia Structural steel
X9931 K1070S
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Jiangyou Longhai Special Steel Co.,Ltd.
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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