GCr 15A | Φ20 (rolled) bearing steel GCr 15A | Φ25 (rolled) bearing steel GCr 15A | Φ28 (rolled) bearing steel GCr 15A | Φ30 (rolled) bearing steel GCr 15A | Φ32 (rolled) bearing steel GCr 15A | Φ35 (rolled) bearing steel GCr 15A | Φ38 (rolled) bearing steel GCr 15A | Φ40 (rolled) bearing steel GCr 15A | Φ42 (rolled) bearing steel GCr 15A | Φ45 (rolled) bearing steel GCr 15A | Φ48 (rolled) bearing steel GCr 15A | Φ50 (rolled) bearing steel GCr 15A | Φ52 (rolled) bearing steel GCr 15A | Φ55 (rolled) bearing steel GCr 15A | Φ60 (rolled) bearing steel GCr 15A | Φ65 (rolled) bearing steel GCr 15A | Φ70 (rolled) bearing steel GCr 15A | Φ75 (rolled) bearing steel GCr 15A | Φ80 (rolled) bearing steel GCr 15A | Φ85 (rolled) bearing steel GCr 15A | Φ90 (rolled) bearing steel GCr 15A | Φ95 (forging material) bearing steel GCr 15A | Φ100 (forging material) bearing steel GCr 15A | Φ110 (forging material) bearing steel GCr 15A | Φ120 (forging material) bearing steel GCr 15A | Φ130 (forging material) bearing steel GCr 15A | Φ140 (forging material) bearing steel GCr 15A | Φ150 (forging material) bearing steel GCr 15A | Φ160 (forging material) bearing steel GCr 15A | Φ170 (forging material) bearing steel GCr 15A | Φ180 (forging material) bearing steel GCr 15A | Φ190 (forging material) bearing steel GCr 15A | Φ200 (forging material) bearing steel Our advantage: with a long experience in the supply and service with a full range of steel with a rich inventory have regular purchasing channels and reasonable prices have sound technical support and after-sales service have a perfect logistics and delivery speed of the Division owned fleet customers can order materials with fast delivery, remote clients are given special express delivery company . -------------------------------------------------- -------- Material Name: Bearing steel grades: GCr15A Standard: YB 9-1968 ● Features and Scope: It is a kind of GCr15 steel after remelting steel precision bearings. With high purity, high density, and good uniformity carbide, fatigue performance than ordinary GCr15 bearing steel. Suitable for manufacturing bearings, special bearings, aircraft engine bearings, precision instruments, precision spindle bearings. ● Chemical Composition: Carbon C: 0.95 ~ 1.05 Si Si: 0.15 ~ 0.35 Manganese Mn: 0.20 ~ 0.40 Sulfur S: ≤ 0.020 Phosphorus P: ≤ 0.027 Chromium Cr: 1.30 ~ 1.60 Ni-Ni: ≤ 0.30 Copper Cu: ≤ 0.25 ● Mechanical Properties: Tensile strength σb (MPa): 1902 Impact energy Akv (J): 26 Hardness: 63HRC sample size: a sample ● Heat treatment and microstructure specifications: Heat Treatment Specification: 850 ~ 860 ℃ quenching oil cooling; 160 ℃ tempered 2h. Microstructure: tempered martensite. Shanghai Bao Industrial Co., Ltd. Address vertical (ADD): Baoshan District, Shanghai Rail Road, Building 2, Room 402, 1050 Contact: Lee Sang ago 18116155360 Telephone (TEL) :021-36308890 fax (FAX) :021-36308890