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Material SUJ2 JIS G4805 Technical Properties

JIS SUJ2 or Equivalent

Bearing Steel



Characteristics

SUJ2 JIS G4805 is a Japanese high carbon chromium bearing steel, to be used in the manufacture of anti-friction bearings.

  • SUJ2 bearing-steel has good wear-resistance ability an high hardness degree
  • High stability & low deformation, no soft point after induction heat treatment
  • Hardness can reach HRC 62∓2 degree with the hard-chromium plate
  • Surface rougness RZ1.2
  • SUJ2 bearing steel flat tip can be directly processed molding use mold times higher than the SKD-61 (HRC52) hard body 2-3 times.


Standard

JIS G4805 SUJ2
ASTM A295 52100
DIN 17230 100Cr6/1.3505
BS 970 535A99/ EN31
GB GCr15
SAE 52100


Equivalent

Thyssenkrupp 3505,DIN 100Cr6, AISI 52100

Availability

Roundbar : Ø 12 mm - 180 mm
Pipe Shaft : OD.Ø 20-80mm, ID.Ø 6.5 -40 mm
Standard Length: 2 - 6.5M
Price: Call


Chemical composition SUJ2 & 52100: ( % )


Grade C Si Mn Cr P S Ni Mo Cu
SUJ2 0.95-1.10 0.15-0.35 0.50 1.30-1.60 0.025 0.025 ≤ 0.25 ≤ 0.08 ≤ 0.25
52100 0.93-1.05 0.15-0.35 0.25-0.45 1.35-1.60 0.025 0.015 0.25 0.10 0.30



Mechanical Properties

Properties
SUJ2
Tensile Strength σb (MPa) 1617
Impact energy Akv (J) 28
Hardness (HRC) 61 ~ 64
Heat treatment (℃) 850 ~ 860
Quenching oil cooling (°C) 160 - tempering 2h
Microstructure Tempered martensite
Surface Hardness (HRC) 62∓2° C


Application

Bearing, ball screws, general plastic mold, automotive machine, bearing ball, roller sleeve, cold-rolled, press and forging dies, knife, gauges, moulds for pressure casting, ejector pins, slide rail, guide-rod,cutter-wares,etc


Related Machinery Steel Product:

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