1.2378 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2378

Location » Home » Grades > Tool Die Steels > 1.2378

DIN 1.2378

Profile

This page is mainly introduced the 1.2378 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.2378,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
High alloyed CrVMo steel

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C 2.15  2.30
Si 0.15  0.30
Mn 0.25  0.40
P   0.035
S   0.035
Cr 12.00  13.00
Mo 0.80  1.00
V 2.00  2.30

Mechanical Properties

Tensile strength 598~781 σb/MPa
Yield Strength 430 σ 0.2 ≥/MPa
Elongation 69 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 080~117 -
HRC 30 -

Physical Properties

Thermal expansion 25-20 e-6/K
Thermal conductivity 35-81 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 2207-6101 째C
Density 7321-2808 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
1.2378 Tool Die Steels Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download

Hot keywords:1-2378
Previous: X220CrVMo12-2
Next: X155CrVMo12-1