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ASTM A295 is specification which covers 52100 high carbon bearing quality steel to be used in the manufacture of anti-friction bearings. And 52100 bearing steel is the most common steel grade in ASTM A295 standard for high-carbon anti-friction bearing steel.
What is 52100 bearing steel?
AISI/ASTM 52100 bearing steel is a high carbon, chromium containing low alloy steel that is through hardening and noted in particular for use as bearings.
52100 bearing steel is one kind of special steel with features of high wear resistance and rolling fatigue strength. High-carbon chromium bearing steel, engineering steel and some types of stainless steel and heat resistant steel are used as materials of bearings and for other purposes.
Advantages of Chrome Bearing Steel 52100:
1. Supply Range of ASTM 52100 Bearing Steel
AISI 52100 Steel Round Bar: diameter 8mm – 800mm
52100 Steel Plate: thickness 2mm –300mm x width 200mm – 800mm
Other sizes of 52100 steel as per customer’s requirements
Process: Cold drawn, hot rolled, forged etc.
Surface Finish: black, rough machined, turned, polished or as per given requirements.
2. Relevant Steel Specification of ASTM 52100 Bearing Steel
Country USA German Japan British Standard ASTM A295 DIN 17230 JIS G4805 BS 970 Grades 52100 100Cr6/1.3505 SUJ2 535A99/EN313. Chemical Composition of 52100 Bearing Steel and Equivalents
Standard Grade C Mn P S Si Ni Cr Cu Mo ASTM A295 52100 0.93-1.05 0.25-0.45 0.025 0.015 0.15-0.35 0.25 1.35-1.60 0.30 0.10 DIN 17230 100Cr6/1.3505 0.90-1.05 0.25-0.45 0.030 0.025 0.15-0.35 0.30 1.35-1.65 0.30 – JIS G4805 SUJ2 0.95-1.10 0.50 0.025 0.025 0.15-0.35 – 1.30-1.60 – – BS 970 535A99/EN31 0.95-1.10 0.40-0.70 – – 0.10-0.35 – 1.20-1.60 – –4. Mechanical Properties of ASTM A295 52100 Bearing Steel
Properties Metric Imperial Bulk modulus (typical for steel) 140 GPa 20300 ksi Shear modulus (typical for steel) 80 GPa 11600 ksi Elastic modulus 190-210 GPa 27557-30458 ksi Poisson’s ratio 0.27-0.30 0.27-0.30 Hardness, Brinell – – Hardness, Knoop (converted from Rockwell C hardness) 875 875 Hardness, Rockwell C (quenched in oil from 150°C tempered) 62 62 Hardness, Rockwell C (quenched in water from 150°C tempered) 64 64 Hardness, Rockwell C (quenched in oil) 64 64 Hardness, Rockwell C (quenched in water) 66 66 Hardness, Vickers (converted from Rockwell C hardness) 848 848 Machinability (spheroidized annealed and cold drawn. Based on 100 machinability for AISI 1212 steel) 40 405. Forging of A295 52100 Bearing Steel
AISI 52100 alloy steel is forged at 927 to 1205°C, and should not be forged below 925ºC. A post-forge equalization treatment is recommended at 745ºC for 4-6 hours followed by air cooling for SAE/AISI 52100 steel.
6. Heat Treatment for ASTM 52100 Bearing Steel
ASTM/AISI 52100 alloy bearing steel is heated at 816°C followed by quenching in oil. Before performing this process, it is subjected to normalizing heat treatment at 872°C followed by slowly cooling in order to reduce the machining stress.
Hot Working
AISI 52100 bearing steels alloy can be hot worked at 205 to 538°C.
Cold Working
AISI 52100 bearing steel can be cold worked using conventional techniques in the annealed or normalized conditions.
Annealing
For spheroidize anneale, the following isothermal anneal is recommended:
Quenching
AISI 52100 alloy bearing steel could be hardened by quenching in water from 801-829 degree or quench in oil from 816-842 degree.
Tempering
Temper to desired hardness as indicated by tempering curves after water or oil quench.
7. Applications of 52100 Bearing Steel
Alloy steel 52100 grade bearing steel is mainly used for the manufacture of aircraft bearings and other highly stressed parts. This steel grade 52100 steel is preferably vacuum arc re-melted to give optimum performance.
Typical applications: Bearing Manufacture, CV joints, ball screws, gauges, knife etc.
Otai Steel is one of reliable and serious special steel supplier of 52100 bearing steel materials. We stock and export such bearing steels worldwide. In the end of each month, we may have some 52100 bearing steel materials for sale or in discount. You are free to request a 52100 bearing steel price anytime.
The importance of the materials by which bearings and their components are produced cannot be understated. The most common material used to manufacture bearing rings and balls is 52100 Chrome Steel. This bearing grade alloy steel is characterized by a high level of carbon, consists of about 1.5% chromium, and is considered the best general-purpose steel for making bearings.
Bearings manufactured from 52100 Chrome Steel offer a handful of advantages over bearings manufactured using other materials, including superior hardness, high load capacity, rolling fatigue strength, wear resistance, dimensional precision, and quality surface finishing. Although they fall short in their resistance to corrosion, bearings produced using 52100 Chrome Steel are suitable for most bearing applications. Other nomenclature for 52100 Chrome Steel can be found in the comparison table below.
52100 Chrome Steel Grade Equivalents:
Given the benefits it has to offer and the overall quality of the steel itself, Auburn Bearing & Manufacturing has selected 52100 Chrome Steel to be used as one of the primary materials in the manufacture and production of its standard bearing lines as well as various other precision components. The majority of the steel used at Auburn Bearing & Manufacturing is reliably sourced from TimkenSteel and is manufactured in the USA.
Want more information on what are steel coils used for? Feel free to contact us.