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50B

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45B 40MnB
#50B

Description

China GBT 50B China structural steel and alloy steel and 50B Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 50B
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 50B GBT China China structural steel and alloy steel
50Mn2
20MnV
27SiMn
35SiMn
42SiMn
20SiMn2MoV
25SiMn2MoV
37SiMn2MoV
40B
45B

Chemical composition(mass fraction)(wt.%) of the 50B

C(％) Si(％) Mn(％) B(%)
0.47-0.55 0.17-0.37 0.60-0.90 0.0005-0.0035

Mechanical Properties of steel grade 50B

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)
323 (≥) 337 (≥) 23 21 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade 50B

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 - -     0.13 -  
242 167 - 34.3 242   -  
631 - 43 13.2   133 243

Heat Treatment of steel grade 50B

Heat treated : 1781°C - 1983°C

Technological Curves of steel grade 50B

Cross Reference Table (Equivalent Grade) of 50B

Grade Standard Country Application
50B GBT China China structural steel and alloy steel
XH50BMTKΦЮ(ЭП57) ГОСТ Russia Russia COST standard deformation of high temperature alloy
XH50BMKTЮP-ИД0ЭП99-ИД) ГОСТ Russia Russia COST standard deformation of high temperature alloy
ZG240-450B GBT China Steel castings for pressure purposes
ZG240-450BG GBT China Steel castings for pressure purposes
ZG240-450BD GBT China Steel castings for pressure purposes
45B 40MnB
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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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