Alloy Steels 52100 is stocked by 17 North American distributors and produced by 23 large mills. Distributors will offer small quantity buys while mills will generally only sell large quantities, with delivery times anywhere from 10 to 50 weeks depending on size and form required
This material is stocked primarily in Bar Products by 13 distributors but is also available to a lesser extent in Tubular Products, Flat Rolled Products, Forging Products, and Wire Products.
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Specifications
The following specifications cover Alloy Steels 52100
No Specifications.
Property Results
Chemistry Data : [top]
Carbon
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0.98 - 1.1 |
Chromium
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1.3 - 1.6 |
Iron
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Balance |
Manganese
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0.25 - 0.45 |
Phosphorus
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0.025 max |
Silicon
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0.15 - 0.35 |
Sulphur
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0.025 max |
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Principal Design Features
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52100 is a high carbon, chromium containing low alloy steel that is through hardening and noted in particular for use as bearings.
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Applications
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Principal applications are those for bearings in rotating machinery.
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Machinability
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Machinability of 52100 alloy is good by conventional methods. A spherodizing anneal at 1200 F before machining will improve the overall machinability of the alloy.
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Forming
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52100 may be formed by all conventional methods, including cold forging or stamping and hot or cold upset forming.
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Welding
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No data given. This is a high carbon alloy typically used in bearing applications where welding is not applicable or appropriate.
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Heat Treatment
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Heat treatment consists of heating to 1500 F followed by an oil quench for through hardening of the alloy. A normalizing heat treatment at 1600 F and slow cooling, to relieve machining stress, may be employed prior to the 1500 F and quench treatment.
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Forging
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The alloy may be supplied as forgings and also may be subsequently forged at 2200 F down to 1700 F
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Hot Working
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Hot working, such as upsetting, may be done in the range of 400 to 1000 F.
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Cold Working
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The alloy has good ductility and may be cold worked in the annealed or normalized conditions by conventional methods.
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Annealing
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Anneal at 1600 F and slow cool to relieve machining or cold working strains.
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Aging
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Not applicable to this alloy.
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Tempering
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Temper at 400 F.
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Hardening
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The alloy hardens from cold working or by heating and quenching - see "Heat Treatment". It also may be carburized at 1675 F and quenched after sufficient time for carburization. A second heating to 1450 F and second quench from that temperature should be used.
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Physical Data : [top]
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Density (lb / cu. in.)
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0.283
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Specific Gravity
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7.83
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Specific Heat (Btu/lb/Deg F - [32-212 Deg F])
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0.114
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Melting Point (Deg F)
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2595
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Thermal Conductivity
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240
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Mean Coeff Thermal Expansion
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6.5
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Modulus of Elasticity Tension
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29
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Mechanical Data : [top]
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MSO currently has no data available for this grade.
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Videos :
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MSO currently has no videos available for this grade.
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Disclaimer
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This publication may include technical inaccuracies or typographical errors. Changes may be periodically made to the information herein.
