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All Categories > Alloyed Bars and Plates > Aircraft Alloy Steels > Cold Finished Aircraft Alloy Bars > E-52100 Aircraft Alloy > E-52100 Aircraft Cold Drawn Spheroidize Annealed Alloy - Rounds > Size 5/8  
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Size 5/8, E-52100 Aircraft Cold Drawn Spheroidize Annealed Alloy - Rounds

This high carbon, high chromium alloy is produced by the electric furnace process and then vacuum degassed to meet the rigid standards of the aircraft industry for bearing applications. This steel develops high hardness and has exceptional resistance to wear and abrasion. In smaller sections it has high compressive strength. Because of high carbon content, bars are furnished in the spheroidize annealed condition in order to provide the best possible machinability.

UNS G15216, MIL-S-7420 - AMS 6440 - AMS 2301 - ASTM A295

Color Marking: Ends painted Gold and Green

Physical Conditions E
Surface Condition 4

Stock Lengths: 12'

Specifications  · Analysis  · Applications  · Heat Treating


Estimated Weight per Foot

1.044 lb

Estimated Weight 12-Ft. Bar

12 53 lb

Carbon .95/1.10
Manganese .25/.45
Phosphorus .025 Max.
Sulphur .025 Max.
Si. .15/.35
Cr. 1.30/1.60

Intended for use in ball or roller bearings and similar applications.

Heat Treating
Anneal—1400°/1450°F very slow cool
Quench—Oil, 140CF maximum
Temper—350°/450°F ior maximum hardness


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