rolled structural steel
Basic Info.
Model NO.: EN31/GCr15/SAE52100/SUJ2
Quality Assurance: 100% UT passed
Delivery Time: 7days
Condition: stock
Delivery condition: hot rolled black surface
Transport Package: Standard/Customized
Specification: standard/customized
Origin: Jiangsu,China
Product Description
GB GCr15 bearing steel is GB standard Alloy Bearing steel, It
belong to the high quality high carbon, alloy chromium,manganese
steel.
GB GCr15 properties is a chromium,manganese alloy steel
specification. GCr15 is equivalent to AISI 52100, DIN 100Cr6. Most
applications can replace each others.
Chemical Composition
Grades
| C | Si | Mn | P | S | Cr | Mo | Cu | Ni |
GCR5/52100
| 0.95-1.05 | 0.15-0.35 | 0.2-0.4 | ≤0.027 | ≤0.02 | 1.3-1,65 | ≤0.1 | ≤0.25 | ≤0.3 |
100Cr6
| 0.95-1.05 | 0.15-0.35 | 0.250-0.45 | ≤0.025 | ≤0.05 | 1.4-1.65 | ≤0.08 | ≤0.25 | ≤0.3 |
Heat Treatment
Quenching
| Temping |
Heating Temperature/℃
| Cooling | Hardness/HRC | Heating Temperature/℃ | Coling | Hardness/HRC |
830-850
| oil | 62-65 | 150-190 | Air | 58-65 |
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 GPAa | 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 oll from 150℃ temperde) | 62 | 62 |
| Hardness,Rockwell C (quenched in water 150℃ temperde) | 64 | 64 |
| Hardness,Rockwell C (quenched in oll) | 64 | 64 |
| Hardness,Rockwell C (quenched in water) | 66 | 68 |
| Hardness,Vick(converted from Rockwell C hardness) | 848 | 848 |
| Machinability(spheroidized annealed and cold draw.Based on 100
machinabilit for AISI 1212 steel) | 40 | 40 |
Applications
1. 1 For making all kinds of bearing ring and rolling element, such
as steel ball roller and ferrule of inernal combustion engine,
electric motorcycle, automonilrd tractors, machine tools, rolling
mill, boring machine, mining machinery, general machinery, high
load and high speed roating mechanical transmission bearing.
2. 2. Sometimes also used to make tools, such as pumching die and
measuring tools
3. 3 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
