AISI 8620 (UNS G86200) Steel Supplier & Stockist in UAE – Nifty Alloys LLC 

Nifty Alloys LLC is a trusted supplier and stockist of AISI 8620 alloy steel based in the United Arab Emirates, serving clients across the Middle East, Asia, Europe, and Africa. We provide high-quality 8620 steel bars, rods, and billets used in demanding engineering and automotive applications.
Known for its strength, wear resistance, and core toughness, AISI 8620 steel is one of the most versatile case-hardening steels available today.

What is AISI 8620 Steel (21nicrmo2)?

AISI 8620 is a nickel-chromium-molybdenum alloy steel with low carbon content, designed primarily for carburizing applications. It combines excellent toughness, fatigue resistance, and surface hardness after heat treatment, making it ideal for parts subjected to heavy wear and stress.

You’ll often find AISI 8620 used in automotive gears, shafts, and crankshafts, where a hard outer case and tough inner core are both required.
Its balanced alloy composition ensures consistent machinability, dimensional stability, and impact performance, even under harsh operating conditions.

Surface Hardness and Case Depth

After proper carburizing, AISI 8620 can achieve:

• Surface Hardness: 55–60 HRC
   
• Case Depth: 0.8–1.2 mm (depending on process duration)

This ensures a wear-resistant exterior with a ductile, shock-absorbing core — perfect for long-term service in mechanical assemblies.

Key Features and Benefits

• Excellent hardness and wear resistance after carburizing
   
• High fatigue strength for rotating and impact-loaded components
   
• Tough core to absorb shock loads
   
• Good machinability in the annealed condition
   
• Dimensional stability during heat treatment
   
• Suitable for precision components requiring long service life