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20MnB5q

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20BCrMn13q 20BMn13q
#20MnB5q

Description

Romania STAS/SR 20MnB5q Alloy structural steel and 20MnB5q Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 20MnB5q
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 20MnB5q STAS/SR Romania Alloy structural steel
42MoCr11S
42MoCr11X
42MoCr11XS
51VMnCr11
51 VMnCr11S
51VMnCr11X
51VMnCr11XS
17MoCrNi14q
19BMn10q
20BCrMn13q

Chemical composition(mass fraction)(wt.%) of the 20MnB5q

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Cu(%) Al(%) Ti(%)
0.17- 0.23 0.10-0.40 1.10-1.40 0.035 0.035 Max 0.30 0.30 0.30 0.02 0.01 -0.04

Mechanical Properties of steel grade 20MnB5q

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)
989 (≥) 138 (≥) 11 34 21 Solution and Aging, Annealing, Ausaging, Q+T,etc 111

Physical Properties of steel grade 20MnB5q

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
14 - -     0.13 -  
546 128 - 42.3 431   -  
676 - 21 23.2   144 114

Heat Treatment of steel grade 20MnB5q

Heat treated : 1956°C - 1434°C

Technological Curves of steel grade 20MnB5q

Cross Reference Table (Equivalent Grade) of 20MnB5q

Grade Standard Country Application
20MnB5q STAS/SR Romania Alloy structural steel
20BCrMn13q 20BMn13q
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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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