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L20158

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U40452 U41252
#L20158

Description

China GBT L20158 China structural steel and alloy steel and L20158 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: L20158
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel L20158 GBT China China structural steel and alloy steel
U40208
U40202
U41188
U41228
A20204
U40252
U40302
U40352
U40402
U40452

Chemical composition(mass fraction)(wt.%) of the L20158

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%) Al(%)
0.14-0.20 0.20-0.40 1.20-1.60 0.035 0.035 — — —

Mechanical Properties of steel grade L20158

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)
685 (≥) 839 (≥) 31 24 14 Solution and Aging, Annealing, Ausaging, Q+T,etc 214

Physical Properties of steel grade L20158

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 - -     0.44 -  
342 884 - 12.3 411   -  
894 - 43 34.2   133 322

Heat Treatment of steel grade L20158

Heat treated : 1378°C - 1634°C

Technological Curves of steel grade L20158

Cross Reference Table (Equivalent Grade) of L20158

Grade Standard Country Application
L20158 GBT China China structural steel and alloy steel
U40452 U41252
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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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