SAE 52100 SUJ2 100Cr6 Hot Forged Spheroidized Bearing Steel Round Bar

Categories	Round Forgings
Brand	fushun
Model	SAE 52100 SUJ2 100Cr6
Size range	Diameter 100-850 mm
Produce process	Hot Forged
Delivery condition	Forged,forged+soft annealed, forged+Spheroidized annealed
Surface condition	black, peeled,polished
FOB port	SHANGHAI
Terms of Payment	L/C, D/A, D/P
Update Time	Apr 30,2025

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Detail Information

Description:

Bearing steel is the general term for alloy steel used in the manufacture of bearing races and moving parts of all types of roller bearings.

Application:

It is used in auto components,machine tools and drilling and exploration equipment for mining industry.

Standard: ASTM A295, JIS G4805, DIN 17230

Steel Grade: 52100, SUJ2, 100Cr6

Size range: Diameter 100-850 mm

Delivery condition: Forged,forged+soft annealed, forged+Spheroidized annealed

Surface condition: black, peeled,polished

Standard

DIN 17230 1980 Ball and Roller Bearing Steels

Advantages of Chrome Bearing Steel 52100:

Superior hardness, 60-67 on Rockwell hardness scale (Rc) at room temperature

High carbon chrome alloy steel

Operates continually at temperatures up to 120°C

Used to produce precision ball bearings and roller bearings

Cost-effective

Long working life

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.

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	–	–

Mechanical 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	40