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18MnMoNbR

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15MnVNR 13MnNiMoNbR
#18MnMoNbR

Description

China GBT 18MnMoNbR China structural steel and alloy steel and 18MnMoNbR Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 18MnMoNbR
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 18MnMoNbR GBT China China structural steel and alloy steel
S360
S385
S415
S450
S480
20R
16MnR
15MnVR
15MnVNR
15MnVNR

Chemical composition(mass fraction)(wt.%) of the 18MnMoNbR

C(％) Si(％) Mn(％) P(％) S(％) Mo(％) Nb(%)
Max 0.22 0.15-0.50 1.20-1.60 0.035 0.03 0.45-0.65 0.025-0.050

Mechanical Properties of steel grade 18MnMoNbR

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)
836 (≥) 853 (≥) 23 14 44 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade 18MnMoNbR

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
44 - -     0.32 -  
686 784 - 21.3 131   -  
867 - 12 14.2   242 142

Heat Treatment of steel grade 18MnMoNbR

Heat treated : 1161°C - 1961°C

Technological Curves of steel grade 18MnMoNbR

Cross Reference Table (Equivalent Grade) of 18MnMoNbR

Grade Standard Country Application
18MnMoNbR GBT China China structural steel and alloy steel
15MnVNR 13MnNiMoNbR
Available Suppliers
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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