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21MoMnCr12AT

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20TiMnCr12AT 28TiMnCr12AT
#21MoMnCr12AT

Description

Romania STAS/SR 21MoMnCr12AT Alloy structural steel and 21MoMnCr12AT Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Structure Steel: 21MoMnCr12AT
Category Type Steel Grade Standard Country Application
Steel GradesStructure Steel 21MoMnCr12AT STAS/SR Romania Alloy structural steel
60CrMnSil7A
OLC38
OLC38B
OLC38Pb
OLC43
X
15Cr9AT
17MoCrNi14AT
18MnCr11 AT
20TiMnCr12AT

Chemical composition(mass fraction)(wt.%) of the 21MoMnCr12AT

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%)
0.18-0.24 0.17-0.37 0.80-1.20 0.025 0.025 1.00-1.40 0.3 0.20-0.30 0.3

Mechanical Properties of steel grade 21MoMnCr12AT

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)
229 (≥) 684 (≥) 43 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade 21MoMnCr12AT

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
32 - -     0.13 -  
555 667 - 13.3 421   -  
368 - 13 42.2   342 213

Heat Treatment of steel grade 21MoMnCr12AT

Heat treated : 1756°C - 1459°C

Technological Curves of steel grade 21MoMnCr12AT

Cross Reference Table (Equivalent Grade) of 21MoMnCr12AT

Grade Standard Country Application
21MoMnCr12AT STAS/SR Romania Alloy structural steel
20TiMnCr12AT 28TiMnCr12AT
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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