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3X2H2MVF steel

3Х2Н2МВФ steel

3X2H2MVF steel: a classifier of steels and alloys. Below is systematized information on the purpose, chemical composition, types of supply, substitutes, critical point temperature, physical, mechanical, technological and foundry properties for the grade — Steel 3Cr2N2MVF.

General information about 3X2H2MVF steel

Application
Important parts of press tools with high strength properties and satisfactory plasticity after normalization and tempering: press studs, needles and other parts operating at elevated temperatures up to 500 °C.

Chemical composition of 3X2H2MVF steel

Chemical element %
Vanadium (V) 0.20−0.30
Tungsten (W) 0.80−1.20
Silicon (Si) 0.17−0.37
Manganese (Mn) 0.50−0.80
Molybdenum (Mo) 0.80−1.00
Nickel (Ni) 1.40−1.80
Sulfur (S), max. 0.030
Carbon (C) 0.32−0.38
Phosphorus (P), not more than 0.030
Chrome (Cr) 2.00−2.50

Mechanical properties of 3Cr2Ni2MoVF steel

Mechanical properties depending on test temperature

t test temperature,°C σ0, 2, MPa σB, MPa δ5, % HB
Forgings up to 700 mm cross section. Normalization 950−960°C, air. Two-step tempering 550−580°C, cooling with furnace (tangential samples)
20 1300 1400 7 388−444
450 1000 1100 8  
500 950 1050 8  

Technological properties of steel 3Х2Н2МВФ

Forging temperature
Beginning 1200, end 900.
Weldability
hardly weldable.
Tendency to tempering ability
Slightly inclined
Flockensitive
low sensitivity

Hardenability of steel 3Х2Н2МВФ

Hardening, water

Face distance, mm / HRCe
60 200
51,5 43,5
Heat treatment Critical hardness, HRCe Spacing from the end to be cooled
Hardening, water 51,5 60
  43,5 200