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1.2779

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X6NiCrTi26-15 X16CrNiSi25-20
#1.2779

Description

Germany DIN 1.2779 Hot working alloy tool steel and 1.2779 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: 1.2779
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy 1.2779 DIN Germany Hot working alloy tool steel
1.2737
28NiCrMoV10
1.2740
57NiCrMoV7-7
1.2744
28NiMo17
1.2747
35NiCrMo16
1.2766
X6NiCrTi26-15

Chemical composition(mass fraction)(wt.%) of the 1.2779

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%) B(%) Ti(%)
Max 0.08 Max 1.0 Max 2.0 Max 0.030 Max 0.030 13.5-16.0 24.0-27.0 1.00-1.50 0.10-0.50 0.003-0.010 1.90-2.30

Mechanical Properties of steel grade 1.2779

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)
769 (≥) 378 (≥) 31 42 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 433

Physical Properties of steel grade 1.2779

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
14 - -     0.14 -  
861 248 - 43.3 222   -  
326 - 11 41.2   224 232

Heat Treatment of steel grade 1.2779

Heat treated : 1226°C - 1572°C

Technological Curves of steel grade 1.2779

Cross Reference Table (Equivalent Grade) of 1.2779

Grade Standard Country Application
1.2779 DIN Germany Hot working alloy tool steel
X6NiCrTi26-15 X16CrNiSi25-20
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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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