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1.2740

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28NiCrV5 28NiCrMoV10
#1.2740

Description

1.2740 Tool Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel: 1.2740
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel 1.2740
X45CoCrWv5-5-5
55NiCrMoV7
1.2714
56NiCrMoV7
1.2726
26NiCrMoV5
1.2731
X50NiCrWV13-13
1.2737
28NiCrV5

Chemical composition(mass fraction)(wt.%) of the 1.2740

 

 

 

C  Si 
≤		 Mn 
≤		  P
≤		  S
≤		 Cr   Ni  Mo  Other
 0.24-0.32  0.30-0.50  0.20-0.40  0.030  0.030  0.60-0.90  2.30-2.60  0.50-0.70  V  0.25-0.32

Mechanical Properties of steel grade 1.2740

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)
567 (≥) 367 (≥) 34 43 43 Solution and Aging, Annealing, Ausaging, Q+T,etc 144

Physical Properties of steel grade 1.2740

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
33 - -     0.43 -  
941 667 - 12.3 123   -  
871 - 13 14.2   432 334

Heat Treatment of steel grade 1.2740

Heat treated : 1846°C - 1873°C

Technological Curves of steel grade 1.2740

Cross Reference Table (Equivalent Grade) of 1.2740

Grade Standard Country Application
1.2740 DIN Germany Hot working alloy tool steel
28NiCrV5 28NiCrMoV10
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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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