AISI 52100

100CR6 is a high carbon steel known for excellent hardness and wear resistance, commonly used in manufacturing components such as gears, shafts, and pins.

Chemical Composition:

Carbon (C) : 0.90 - 1.10 

Manganese (Mn) :  0.60 - 0.90 

Silicon (Si) : ≤ 0.40

Chromium (Cr) : 0.50 - 0.80 

Nickel (Ni) :  ≤ 0.40

Phosphorus (P) : ≤ 0.035 

Sulfur (S) : ≤ 0.035 

Mechanical Properties:

Yield Strength (N/mm²) : 850 - 1000 

Ultimate Tensile Strength (N/mm²) : 1000 - 1200

 Hardness (Brinell): 200 - 300 HB 

Elongation : (%):≥ 10

Heat Treatment:

- Hardening: Heat to 800-850°C and quench in oil or water.

- Tempering: Temper at 150-200°C to achieve desired hardness and toughness.

Applications:

- Gears

- Shafts

- High-wear components

- Pins and fasteners

Machinability:

100CR6 can be machined effectively but may require specialized tools due to increased hardness after heat treatment.

Welding:

Welding is not typically recommended without preheating and post-weld heat treatment due to cracking risks.