Material 1.4404 Protection Cover for Large Quipment Marine Winch
Process of Passivation
Product feature
Product name: Material 1.4404 Protection Cover for Large Quipment
Marine Winch Process of Passivation
Other name: Protection Cover
Standard: NS-ISO 2768mK
Sling type: cable or wire
power: Electirc
colour: Passivation
Rope: 100-1000mm
Rope diameter: 3-199mm
Tolerance General: Ns-iso 2768mK
Our company mainly serves lifting machinery, marine machinery,
petroleum machinery, water conservancy machinery, We can produce
winches and all steel parts for winches.
Advantage and main feature
1. Top quality with competitive price.
2. Widely used in factory, mining, shipyard or double beam cranes.
3. Compact structure and reasonable design.
4. Easy to install, operate and maintenance.
5. Low noise and good working condition.
6. Safe and reliable function.
Preparation and cutting of steel
Cutting and beveling of materials shall be carried out by thermal
cutting or machining.
Thermally cut edges shall be ground to sound metal before welding.
All sharp edges, corners and Curing Zone must be rounded to
R=2.5mm.
Stainless steel shall by ground, and then acid treated and cleaned
before use.
Techinical parameters:
Test temperature and charpy V-notch impact energy shall be in
accoradance with DNV lifting appliances No.2.22. Values for plates
in primary and essential welded steel structure is listed in table
below:
| Yield stress Re(MPa) | Thichness(mm) | temp(°C) | Impact energy(J) |
| 355 | 6< t ≤ 25 | 0 | 34 |
| 25< t ≤ 50 | -20 | 34 |
| 50< t ≤ 70-40 | -40 | 41 |
| 70< t ≤ 150 | -40 | 50 |
| 690 | 6< t ≤ 25 | 0 | 46 |
| 6< t ≤ 25 | -20 | 46 |
| 50< t ≤ 70 | -40 | 46 |
