SUJ2 Bearing Steel
SUJ2 steel is a Japanese JIS standard high carbon chromium bearing steel. After heat treatment, it has high and uniform hardness, good dimensional stability and corrosion resistance, but the weldability is low.
SUJ2 material is used to make various bearing rings and rolling elements, such as steel balls, tapered rollers, cylindrical rollers, spherical rollers, needle rollers, etc.
Datasheet and specifications
Chemical Composition of SUJ2 Steel
The chemical composition of SUJ2 bearing steel is shown in the following table.
| Chemical Composition of Steel SUJ2 % | ||||||||||
| Standard | Steel Grade | W | Yes | Mn | P ≤ | S ≤ | Cr | Ni ≤ | Mo ≤ | Cu ≤ |
| JIS G4805 | SUJ2 | 0.95-1.10 | 0.15-0.35 | ≤ 0.50 | 0.025 | 0.025 | 1:30pm-1:60pm | 0.25 | 0.08 | 0.25 |
Note: The Cu content of wire rod must be 0.20% or less.
Mechanical Properties of SUJ2 Steel
Annealed hardness spheroidization
- SUJ2 Material Brinell Hardness: ≤201 HBW
- Rockwell material hardness: ≤94 HRB
Grades equivalent to SUJ2
SUJ2 steel equivalent to ISO, US ASTM AISI SAE, European EN, Germany DIN, British BS, France NF and Chinese GB standard. (For reference)
| Grades equivalent to SUJ2 | |||||||||||||
| Japanese | USA | European | China | ISO | |||||||||
| Standard | Note | Standard | Note | Standard | Class (Steel Number) | Standard | Note | Standard | Note | ||||
| JIS G4805 | SUJ2 | AISI SAE, ASTM A295/A295M | 52100 | EN ISO 683-17 | 100Gr6 (1.3505) | GB/T 18254 | GCr15 steel | ISO 683-17 | 100Gr6 (1.3505) | ||||
