30MnB5 / 1.5531 – Steel Number- Alloy Steel- Chemical composition, equivalent, properties | Alok India

1.5531 Structural Manganese Steel

Everything You Need to Know About 23MnB4, 30MB5, 1.5531 Structural Alloy Steel EN 10083 – 3: 2006

 

1.5531 Structural Manganese Steel Description

1.5531 structural manganese steel is used to create heavily loaded parts. The 23MnB4 steel shows low hardenability and high ductility. The 1.5531 structural manganese steel can be used as a substitute for expensive steel that contains molybdenum in the chemical composition. However, th height manganese content in the 1.5531 structural steel’s chemical composition makes it prone to tenderness of tempering and coarseness.

 

1.5531 Alloy Steel Applications 

The 1.5531 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. Axles
  2. Shafts
  3. Wheels
  4. Crankshafts
  5. Stirrers
  6. Forks
  7. Shanks
  8. Cams
  9. Screws
  10. Aerospace parts

 

1.5531 Alloy Steel Chemical Composition

The chemical composition of 1.5531 structural manganese steel is:

1.5531 steel chemical element % present
Carbon (C) [Max] 0.27 to 0.33%
Manganese (Mn)  1.15 to 1.45%
Silicon (Si) [Max] 0.40%
Phosphorus (P) [Max] 0.025%
Sulphur (S) [Max] 0.035%

 

1.5531 Alloy Steel Heat Treatment

1.5531 steel hot work and heat treatment temperature
Hot Forming °C Tempering °C Normalising °C Soft Annealing °C Quenching °C
1150 to 900 450 to 650 860 to 900 600 to 680 860 to 900
Air Air Air Polymer or Water

 

1.5531 Alloy Steel Properties

Here are the properties of 1.5531 alloy steel:

  1. Good strength
  2. Heavy load resistance

 

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