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30MnB5

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27MnCrB5-2 33MnCrB5-2
#30MnB5

Description

Spain UNE 30MnB5 Spain structural alloy steel and 30MnB5 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 30MnB5
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 30MnB5 UNE Spain Spain structural alloy steel
C15R
C16E
CUR
E1711
E1712
El721
E1740
E1741
20MnB5
27MnCrB5-2

Chemical composition(mass fraction)(wt.%) of the 30MnB5

C(％) Si(％) Mn(％) P(％) S(％) B(%)
0.27-0.33 0.4 1.15-1.45 0.035 0.04 0.0008-0.0050

Mechanical Properties of steel grade 30MnB5

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)
129 (≥) 732 (≥) 12 14 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 334

Physical Properties of steel grade 30MnB5

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
34 - -     0.12 -  
566 995 - 44.3 331   -  
839 - 11 11.2   233 213

Heat Treatment of steel grade 30MnB5

Heat treated : 1485°C - 1553°C

Technological Curves of steel grade 30MnB5

Cross Reference Table (Equivalent Grade) of 30MnB5

Grade Standard Country Application
30MnB5 UNE Spain Spain structural alloy steel
EN 30MnB5 EN Euronorm Euronorm Structural steel
27MnCrB5-2 33MnCrB5-2
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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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