AISI 52100 CHROME STEEL BALLS
Low alloy martensitic chrome steel, AISI 52100 thanks to its high hardness, wear resistance, surface finishing and dimensional precision, it is utilized to manufacture bearing and valve balls.
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pplications
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Precision bearings, automotive components (brakes, steering, line shaft), bycicle, agitators, appliances, drawer rails, quick couplings, machine tool, lock mechanisms, conveyor belts, skates, pens, pumps, castors, measurement instruments, valves, recirculating balls. Foodstaff and chemical applications.
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Chemical composition (%)
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%C
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%Si
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%Mn
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%P
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%S
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%Cr
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0.95-1.10
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0.35 max
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0.20-0.50
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0.025 max
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0.025 max
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1.30-1.60
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International standards
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ITA
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USA
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GER
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FRA
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UK
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RUS
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CHN
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JAP
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100Cr6
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52100
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1.3505
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100C6
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534A99
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9Ch1
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GCr15
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SUJ2
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Physical / mechanical / thermal / electric / magnetic properties
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Property
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Symbol
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U.o.M.
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Type
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Notes
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Values
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Density
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δ
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[g/cm3]
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Physical
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Room temp.
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7.80
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Young's modulus
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E
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[GPa]
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Mechanical
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-
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200
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Specific heat
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c
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[J/kg-K]
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Thermal
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Room temp.
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464
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Coefficient of linear thermal expansion
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α
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[10^-6/ºC]
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Thermal
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(ΔT=0-100°C)
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12.3
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Thermal conductivity
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λ
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[W/(m·K)]
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Thermal
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Room temp.
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42.4
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Electric resistivity
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ρ
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[Ω*m*10^-9]
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Electric
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-
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215
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Relative magnetic permeability
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µ
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-
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Magnetic
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Ferromagnetic
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> 300
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Technical characteristics of balls
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Property
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Type
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U.o.M.
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Values
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U.o.M.
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Values
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Hardness
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Mechanical
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[HRC]
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60 - 66
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-
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-
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Ultimate compressive strength
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Mechanical
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[MPa]
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2500 - 2600
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[psix10^3]
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362 - 377
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Service temperature
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Thermal
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[ºC]
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-60 / 150
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[ºF]
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-76 / 302
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