General Information: Ovako 255 is a case hardening steel with high toughness used for bearing and transmission components. There are two different versions of the grade with high cleanliness requirements. The high hardenability ensures a through hardenability of large sections. Variant 255G - Bearing quality (BQ) variant with low sulphur content and high cleanliness demands Variant 255Q - Isotropic quality (IQ) with isotropic properties and improved fatigue strength due to higher cleanliness levels, and a finer size and distribution of non-metallic inclusionsBQ-Steel: BQ-steelĀ® is a bearing quality clean steel optimized for fatigue strength and is also ideal for new design solutions outside the bearing industry. IQ-Steel: IQ-SteelĀ® is an isotropic quality ultra clean steel optimized for high fatigue strength under multi axial loading. Information provided by Ovako |