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Home  >  Cold drawn steel  >  Bearing steel
Product Details
Product Name: SUJ2 bearing steel
Product Type: SUJ2
Product Brand: Japanese steel
On a: SNCM420 bearing steel
Under a: 100Cr6 bearing steel
Product Description  

Bearing steel: SUJ2
Standard: JIS G4805-1999
● Features and Scope:
Good overall performance, after quenching and tempering, high hardness and uniform, wear resistance, contact fatigue strength. Steel thermal processing, annealing after the ball has good machinability. Should make wall thickness ≤12mm, various bearing rings ≤250mm outside diameter, and ball diameter ≤50mm, conical, spherical roller diameter ≤22mm and all sizes of needle; also used in the manufacture of measuring tools, molds, woodworking tools
● Chemical Composition:
Carbon C: 0.95 ~ 1.10
Si Si: 0.15 ~ 0.35
Manganese Mn: ≤0.50
Sulfur S: ≤0.025
Phosphorus P: ≤0.025
Chromium Cr: 1.30 ~ 1.60
Ni: to allow the residual content ≤0.30
Cu: to allow the residual content ≤0.25
Mo Mo: to allow the residual content ≤0.08
Note: to allow the residual content of Ni + Cu≤0.50
● Mechanical Properties:
Tensile strength σb (MPa): 1617
Impact energy Akv (J): 28
Hardness: 61 ~ 64HRC
Sample size: a sample
● Heat treatment and microstructure specifications:
Heat Treatment Specification: 850 ~ 860 ℃ quenching, oil cooling; 160 ℃ tempering 2h.
Microstructure: tempered martensite.
● Delivery status: hot-rolled (forged) annealing, not annealed, annealed skinned steel, cold drawn (rolled) round, polished round steel, hot-rolled steel, annealed steel skinned, cold drawn (rolled) steel eight kinds state delivery.

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