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28NiMo17

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1.2744 1.2747
#28NiMo17

Description

Germany DIN 28NiMo17 Hot working alloy tool steel and 28NiMo17 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: 28NiMo17
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy 28NiMo17 DIN Germany Hot working alloy tool steel
26NiCrMoV5
1.2726
X50NiCrWV13-13
1.2731
28NiCrV5
1.2737
28NiCrMoV10
1.2740
57NiCrMoV7-7
1.2744

Chemical composition(mass fraction)(wt.%) of the 28NiMo17

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) V(%)
0.24-0.31 0.15-0.35 0.20-0.40 Max 0.030 Max 0.030 0.30-0.50 4.20-4.70 1.15-1.25 0.15-0.20

Mechanical Properties of steel grade 28NiMo17

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)
765 (≥) 865 (≥) 41 42 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 343

Physical Properties of steel grade 28NiMo17

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
42 - -     0.34 -  
546 245 - 22.3 234   -  
284 - 23 24.2   331 242

Heat Treatment of steel grade 28NiMo17

Heat treated : 1234°C - 1618°C

Technological Curves of steel grade 28NiMo17

Cross Reference Table (Equivalent Grade) of 28NiMo17

Grade Standard Country Application
28NiMo17 DIN Germany Hot working alloy tool steel
1.2744 1.2747
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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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