52CrMoV4, 51CrMoV4, 1.7701, AISI 4150 – spring steel – Chemical composition, equivalent, properties | Alok India

1.7701 Structural Cr-Mo-V Steel

Everything You Need to Know About 52CrMoV4, 51CDV4, 1.7701 Alloy Steel EN 1003-3 2006

 

1.7701 Structural Alloy Steel Description

1.7701 structural steel is hardened not only by Molybdenum but also by Vanadium. The 52CrMoV4 steel can be quenched and hardened. The 1.7701 alloy steel is also ductile. The presence of Vanadium and Carbon helps harden the steel during tempering by forming carbides.

 

1.7701 Alloy Steel Applications 

The 1.7701 alloy steel has a good set of properties that makes it a suitable material to create various products and parts. It can be used in various applications. This includes:

  1. Machine parts
  2. Engine parts
  3. Threaded springs
  4. Torsion springs
  5. Bark removing knives

 

1.7701 Alloy Steel Chemical Composition

The chemical composition of 1.7701 alloy steel is:

1.7701 steel chemical element % present
Carbon (C) [Max] 0.48 to 0.56%
Manganese (Mn)  0.70 to 1.10%
Silicon (Si) [Max] 0.40%
Chromium (Cr)  0.90 1.20%
Phosphorus (P) [Max] 0.025%
Sulphur (S) [Max] 0.025%
Molybdenum (Mo)  0.15 to 0.30%
Vanadium (V) 0.10 to 0.20%

 

1.7701 Alloy Steel Heat Treatment

1.7701 steel hot work and heat treatment temperature
Hot Forming °C Tempering °C Normalising °C Soft Annealing °C Quenching °C
1050 to 850 400 to 460 880 to 850 680 to 640  850 to 880 
Air Air Oil or polymer

 

1.7701 Alloy Steel Properties

Here are the properties of 1.7701 alloy steel:

  1. Hardenable
  2. Ductile

 

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