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1.2378

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X220CrVMo12-2 X155CrVMo12-1
#1.2378

Description

Germany DIN 1.2378 Cold working alloy tool steel and 1.2378 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Tool Steel And Hard Alloy: 1.2378
Category Type Steel Grade Standard Country Application
Steel GradesTool Steel And Hard Alloy 1.2378 DIN Germany Cold working alloy tool steel
X91CrMoV18
1.2362
X63CrMoV5-1
X100CrMoV5-1
1.2363
1.2369
81MoCrV42-16
X96CrMoV12
1.2376
X220CrVMo12-2

Chemical composition(mass fraction)(wt.%) of the 1.2378

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Mo(％) V(%)
2.15-2.30 0.15-0.30 0.25-0.40 Max 0.035 Max 0.035 12.0-13.0 0.80-1.00 2.00-2.30

Mechanical Properties of steel grade 1.2378

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)
129 (≥) 583 (≥) 14 22 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 141

Physical Properties of steel grade 1.2378

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 - -     0.22 -  
264 298 - 14.3 431   -  
189 - 31 43.2   213 442

Heat Treatment of steel grade 1.2378

Heat treated : 1773°C - 1843°C

Technological Curves of steel grade 1.2378

Cross Reference Table (Equivalent Grade) of 1.2378

Grade Standard Country Application
1.2378 DIN Germany Cold working alloy tool steel
X220CrVMo12-2 X155CrVMo12-1
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Jiangyou Longhai Special Steel Co.,Ltd.

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