1.7108, 61SiCr7 , Alloy Steel – Alloy engineering steel – Chemical composition, equivalent, properties | Alok India

1.7108 Alloy Special Steel

Everything You Need to Know About 60SiCr8, 1.7108 60SiCr7 Alloy Special Steel UNI 3545:1980


1.7108 Alloy Special Steel Description

1.7108 alloyed special steel is a high-silicon, spring combination steel. The 60SiCr7 alloy steel shows high corrosion resistance, hardness, sturdiness, and strength. The 1.7108 alloy steel is machinable in the toughened condition and is weldable by most normal techniques with the exception of oxyacetylene welding. 


1.7108 Alloyed Special Steel Applications 

The 1.7108 alloy special 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. Airplanes
  2. Military weaponry
  3. Rail transportation
  4. Bridges
  5. Machine tools
  6. Knives and swords


1.7108 Alloyed Special  Steel Chemical Composition

The chemical composition of 1.7108 alloyed special steel is:

1.7108 steel chemical element % present
Carbon (C) [Max] 0.57 – 0.64%
Manganese (Mn) [Max] 0.70 – 1.00%
Silicon (Si) [Max] 1.70 – 2.20%
Phosphorus (P) [Max] 0.035%
Sulphur (S) [Max] 0.035%
Chromium (Cr) 0.25 – 0.40%


1.7108 Alloy Special Steel Heat Treatment

1.7108 steel hot work and heat treatment temperature
Hot Forming °C Tempering °C Normalising °C Soft Annealing °C Quenching °C
1050 – 850 430 – 480 870 680 830 – 860
Air Air Air Polymer or Oil


1.7108 Alloy Special Steel Properties

Here are the properties of 1.7108 alloy steel:

  1. High hardness
  2. High corrosion resistance


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