SUJ2 JIS G4805 Steel
High-Carbon Chromium Bearing Steel
Standard
JIS G4805 SUJ2ASTM 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
| Japan | US | Jerman | China | Inter |
| JIS | AISI | DIN | GB | UNS |
| SUJ 1 | 51100 | 105Cr4 |
GCr9 | G51986 |
| SUJ 2 | 52100 | 100Cr6 |
GCr18 | G52986 |
| SUJ 3 | 52100* | 100CrMnSi4-4 | GCr9SiMn | - |
| SUJ 4 | - | 100CrMo7 | GCr18Mo | - |
| SUJ 5 | - | 100CrMo7 | GCr18Mo | - |
Availability
Pipe Shaft : OD.Ø 20-80mm, ID.Ø 6.5 -40 mm
Standard Length: 2 - 6.5M
Price: Call
Chemical composition SUJ2 ( % )
| 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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