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27MnCrB5-2

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20MnB5 30MnB5
#27MnCrB5-2

Description

Spain UNE 27MnCrB5-2 Spain structural alloy steel and 27MnCrB5-2 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 27MnCrB5-2
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 27MnCrB5-2 UNE Spain Spain structural alloy steel
C15E
C15R
C16E
CUR
E1711
E1712
El721
E1740
E1741
20MnB5

Chemical composition(mass fraction)(wt.%) of the 27MnCrB5-2

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) B(%)
0.24-0.30 0.4 1.10-1.40 0.035 0.04 0.30-0.60 0.0008-0.0050

Mechanical Properties of steel grade 27MnCrB5-2

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)
162 (≥) 725 (≥) 23 33 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 423

Physical Properties of steel grade 27MnCrB5-2

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
13 - -     0.33 -  
941 355 - 12.3 132   -  
771 - 23 22.2   434 413

Heat Treatment of steel grade 27MnCrB5-2

Heat treated : 1468°C - 1511°C

Technological Curves of steel grade 27MnCrB5-2

Cross Reference Table (Equivalent Grade) of 27MnCrB5-2

Grade Standard Country Application
27MnCrB5-2 UNE Spain Spain structural alloy steel
EN 27MnCrB5-2 EN Euronorm Euronorm Structural steel
20MnB5 30MnB5
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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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