52100 VAR

Summary

MATERIAL FOR REQUIREMENTS MELT PRACTICE TYPICAL SPECS. CORROSION RESISTANCE TYPICAL TEMP. LIMIT ALT. TO:
52100 Bar VAR Premium Bearing Steel, Aircraft Bearings VAR AMS 6444 - 300°F (149°C) -

General

52100 VAR steel is a deep hardening alloy steel used for aircraft bearings and other high stressed parts where good rolling contact fatigue strength is required at operating temperatures below 400°F (204°C).

This grade is produced by the vacuum-arc remelting (VAR) process and offers greatly improved cleanliness and internal soundness over conventionally air melted bearing quality SAE 52100 steel. 

Typical Applications

Aircraft Bearings such as flight control (flap & slat) applications where fatigue life is critical.

Stock Size Range

  • 0.315" - 5.500"ø

Chemcial Analysis

Carbon 0.93 - 1.05 Manganese 0.25 - 0.45
Chromium 1.35 - 1.60 Molybdenum 0.10 max
Silicon 0.15 - 0.35 Sulfur 0.015 max
Nickel 0.25 max Phosphorus 0.015 max
Aluminum 0.050 max Copper 0.30 max
Oxygen 0.0015 max