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Feature OST-II TUBE
- High quality and quick delivery
We deliver high quality 'Precise carbon steel tube for Hydraulic tube' by a short delivery date with a consistent quality assurance flow from manufacturing to inspection. - Nondestructive test
We will never overlook injurious defects by nondestructive test (eddy current inspection) for all materials. - Bright heat treatment
Inner and Outer surface of the tube become scaleless because we use bright annealing furnace for final heat treatment. - Special wrapping on small amount
On your request, we seal up products by plastic bags. This wrapping excels in stock and rust prevention when you use only a necessary small amount. -
Application
- For high, medium and low pressure oil service
- Hydraulic cylinder
- Construction of chemical plant
- Pipe work
- Mechanical engineering use
- Steam boilers
- Pressure vessels
- Car oil pressure
Chemical composition OST-II TUBE
| C | Si | Mn | P | S | Cu |
| 0.08 - 0.18 |
0.10 - 0.35 |
0.30 - 0.60 |
0.035 or less |
0.035 or less |
0.20 or less |
Mechanical properties OST-II TUBE
| Tensile strength | Yield point | Elasticity |
| 440N/mm2 or less | 195N/mm2 or more | 35% or more |
Standard size OST-II TUBE
Standard size (4,000mm in length) is blue parts in the table below.
We correspond with your request out of standard size.
| (mm) | Thickness | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 3.5 | 4.0 | 4.5 | 5.0 | 5.5 | 6.0 | 7.0 | 8.0, | 9.0 | 10.0 |
| Outer diameter | Tolerance | ±15% | ±10% | |||||||||||||
| 4.0 | ±0.1 | |||||||||||||||
| 6.0 | ||||||||||||||||
| 8.0 | ||||||||||||||||
| 10.0 | ||||||||||||||||
| 12.0 | ||||||||||||||||
| 15.0 | ||||||||||||||||
| 18.0 | ||||||||||||||||
| 22.0 | ||||||||||||||||
| 28.0 | ±0.15 | |||||||||||||||
| 35.0 | ||||||||||||||||
| 42.0 | ±0.2 | |||||||||||||||
| 50.0 | |
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