- Stainless Steel Bars[1]
- Other Hardware[5]
- Mould Design & Processing Services[10]
- Steel Billets[5]
- Steel Round Bars[10]
- Steel Sheets[10]
- Flat Steel[8]
- Moulds[1]
- Contact Person : Mr. Li Donghui
- Company Name : Wuhan Sanzhao Mould Steel Co., Ltd.
- Tel : 0086-27-87051271
- Fax : 0086-27-87051267
- Address : Hubei,wuhan,Room 303,blockA,Junjie building,international enterprise center,No.1,Guanggu Road,
- Country/Region : China
- Zip : 430074
special steel O2
1) cold-working die steel with good hardness 2) good comprehensive mechanics performance 3) low-alloy tool steel
Standard | Chemical composition | C | Si | Mn | V | P | S |
GB/T 1299-2000 | % | 0.85/ 0.95 | ≤0.40 | 1.70/ 2.00 | 0.10/ 0.25 | ≤ 0.030 | ≤ 0.030 |
Features :
1) good hardenability and small deformation after quenching
2) refining the crystal grain by adding appropriate niobium and reducing superheated susceptivity
3) small carbide comparatively and its well distribution
Applications :
For making all sorts of gauge, sample board, stamping die, trimming die, steel plate, circularsaw, piercing die
annealing | ≤500°C , air cooling ≤229HB |
hot treatment quench | 780-820°C oil cooling ≥62HRC |
backfire | 150-200°C air cooling HRC:60-62 |
special steel O2
