Bearing Steel: 100Cr6
● Features and application:
Good overall performance, after quenching and tempering, high and uniform hardness, wear resistance, high strength and contact fatigue. Good thermal processing of steel, after annealing the ball can have a good cutting. Wall thickness should be made ​​≤ 12mm, diameter ≤ 250mm variety of bearing rings, ball diameter ≤ 50mm, tapered, spherical roller diameter ≤ 22mm and all needle sizes; can also be used to produce measuring tools, molds, woodworking tools
● Chemical Composition:
Carbon C: 0.95 ~ 1.05
Si Si: 0.15 ~ 0.35
Manganese Mn: 0.25 ~ 0.45
Sulfur S: ≤ 0.025
Phosphorus P: ≤ 0.025
Chromium Cr: 1.40 ~ 1.65
Ni: to allow the residual content of ≤ 0.30
Copper Cu: to allow the residual content of ≤ 0.25
Mo Mo: allow the residual content of ≤ 0.08
Note: The allows 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 specifications: 850 ~ 860 ℃ quenching oil cooling; 160 ℃ tempering 2h.
Microstructure: martensite.
● Delivery status: the hot-rolled (forged) annealing, not annealed, annealed steel strip, cold-drawn (rolled) round, polished round steel, hot-rolled steel, annealed steel strip, cold-drawn (rolled) steel eight kinds of state of delivery.