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Material SUJ2 JIS G4805 Technical Properties


SUJ2 JIS G4805 Steel

High-Carbon Chromium Bearing Steel


Standard

JIS G4805 SUJ2
ASTM A295 52100
DIN 17230 100Cr6/1.3505
BS 970 535A99/ EN31
GB GCr15
SAE 52100
ISO 100Cr6
GOST SchCh15



Characteristics

SUJ2 adalah baja bantalan kromium karbon tinggi standar JIS G4805 Jepang, untuk digunakan dalam pembuatan bantalan anti-gesekan.
  • SUJ2 bearing-steel memiliki kemampuan ketahanan aus yang baik dan tingkat kekerasan yang tinggi
  • Stabilitas tinggi & deformasi rendah, tidak ada titik lunak setelah perlakuan panas induksi (induction heat treatment)
  • Kekerasan dapat mencapai HRC 62∓2 derajat dengan pelat hard-chromium
  • Kekasaran permukaan (surface rougness) RZ1.2
  • SUJ2 bearing steel flat dapat diproses secara langsung menggunakan cetakan, gunakan cetakan lebih keras 2-3 kali dari SKD-61 (HRC52).


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 P S Cr Ni Mo Cu
SUJ2 0.95-1.10 0.15-0.35 0.50 0.025 0.025 1.30-1.60 ≤ 0.25 ≤ 0.08 ≤ 0.25
52100 0.93-1.05 0.15-0.35 0.25-0.45 0.025 0.015 1.35-1.60 0.25 0.10 0.30
SUJ3 0.95-1.10 0.40-0.70 0.90-1.15 0.025 0.025 0.90-1.20 ≤ 0.25 ≤ 0.08 ≤ 0.25



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


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