100Cr6 Bearing Steel Bar


Standards:ASTM A29/ASTM A 295

Steel mill:BAOSTEEL/Dongbei Special Steel

Size: Round bar (Diameter): 0.50mm to 800mm

Square bar / Flat bar: 3mm to 800mm

Surface treatment:Brightness, black

Heat treatment: 850 ~ 860℃ quenching, oil cold; Tempering at 160℃ for 2h.

Material 100Cr6(1.3505) steel is a commonly used of high-carbon high chromium steel specified in DIN 17230 for ball bearing application. After quenching and tempering, 100Cr6 has good wear resistance, high hardness and contact fatigue performance after heat treatment (quenching and low-temperature tempering). It can be used to manufacture various bearing rings and rolling bodies, such as internal combustion engines, electric locomotives, automobiles, tractors, machine tools, rolling mills, drilling machines, mining machinery, general machinery, as well as high-speed rotating high-load mechanical transmission bearing ball and ring. It is also sometimes used to make tools such as punching dies and measuring tools, or where need large loads.

100Cr6 Equivalent Steel Material

100Cr6(1.3505) E52100/52100 SUJ2 534A99 GCr15 ШX15


DIN 17230 100Cr6 Chemical Composition

C Mn Si P S Ni Cu Cr Mo
0.90~1.05 0.25~0.45 0.15~0.35 ≤0.030 ≤0.025 ≤0.30 ≤0.30 1.35~1.65 /


DIN 17230 100Cr6 Mechanical Property

Tensile Strength Yield Strength Elongation Hardness,HB
>861.3 >518.42 27.95 63HRC


DIN 17230 100Cr6 Heat Treatment

Item Temperature Cooling Hardness
Normal annealing 790~810℃ furnace coolingto650℃ and then air cooling HB170~207
Isothermal annealing


790~810℃ 710~720℃isothermal,air cooling HB207~229
 Normalizing 900~920℃ Air cool HB270~390
High-temperature tempering 650~700℃ Air cool HB229~285
 Quenching 860℃ Oil quenching HRC62~66
Lonnealing 150~170℃ Air cool HRC61~66
Carbonitriding 820~830℃nitriding1.5~3h,Oil quenching;

-60℃~-下70℃subzero treatment;

150℃~160℃ tempering,air cool



Wiho is a fully stocked and leading metal manufacturer, supplier, exporters, distributors of steel mill-product forms such as plate, sheet, pipe, tubing, bar and rod. The steel products provide by us shall be fabricated from prime quality raw materials and is fully certifiable to industrial specifications and standards. Wiho supply and stock a large inventory of DIN 100Cr6 (E52100/100SUJ2//534A99/GCr15) round bar mechanical parts used for gears, gear shaft, main axis, valve rods, bolts and nuts as well as forged knives blades. For more information on our extensive steel alloys inventory, please contact us or fill in the form below.

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