52100 SUJ2 Diameter 300mm Alloy Steel Round Bar

Price Negotiable

Price: USD 0.8-1.5/KG

MOQ: 1 pc

Delivery Time: 10-20 DAYS

Brand: takford

Product Description

Alloy Steel Round Bar 52100 SUJ2 Diameter 300mm To Produce Bearing

Alloy Steel 52100, as known as AISI 52100, contains a high level of carbon and chromium. This alloy offers users good machinability, as well as forming through conventional methods. The hardening of Alloy Steel 52100 can be achieved by cold working, heating, and quenching. The automotive and aircraft industry use Alloy Steel 52100 for a number of different applications including:

Anti-friction bearings
Mill rolls
Taps
Punches
Aircraft parts

To be sold as Alloy Steel 52100 must contain specific amounts of certain chemicals. This list includes:

Fe Balance
Cr 1.3-1.6%
C 0.98-1.1%
Mn 0.25-0.45%
Si 0.15-0.3%
S ≤ 0.0250
P ≤ 0.0250

RFQ OF 52100 STEEL

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/EN31

3. 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	40

52100 Steel Physical Properties

Properties	Metric	Imperial
Density	7.81 g/cm3	0.282 lb/in³
Melting point	1424°C	2595°F

52100 Alloy Steel Thermal Properties

Properties	Metric	Imperial
Thermal expansion co-efficient (@ 23-280°C/73.4- 36°F, annealed)	11.9 µm/m°C	6.61 µin/in°F
Thermal conductivity (typical steel)	46.6 W/mK	323 BTU in/hr.ft².°F

5. 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.