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1.4977

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NiCr20Mo X40CoNi20-20
#1.4977

Description

Germany DIN 1.4977 The high-temperature and high-strength steel and 1.4977 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Steel: 1.4977
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Steel 1.4977 DIN Germany The high-temperature and high-strength steel
2.4632
1.4974
1.4971
X12CrCoNi21-20
2.4973
NiCr19CoMo
NiFeCr12Mo
2.4975
NiCr20Mo
NiCr20Mo

Chemical composition(mass fraction)(wt.%) of the 1.4977

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) W(%) Co(%) Other(%)
0.35-0.45 Max 1.00 Max 1.50 Max 0.045 Max 0.030 19.0-21.0 19.0-21.0 3.50-4.50 3.50-4.50 19.0-21.0 Nb/Ta 3.50-4.50

Mechanical Properties of steel grade 1.4977

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)
299 (≥) 758 (≥) 21 21 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade 1.4977

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
24 - -     0.31 -  
976 677 - 42.3 331   -  
916 - 24 11.2   322 244

Heat Treatment of steel grade 1.4977

Heat treated : 1739°C - 1497°C

Technological Curves of steel grade 1.4977

Cross Reference Table (Equivalent Grade) of 1.4977

Grade Standard Country Application
1.4977 DIN Germany The high-temperature and high-strength steel
NiCr20Mo X40CoNi20-20
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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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