S355NL Z25 Large Diameter Flange
Dimension: Outside diameter up to 4800mm
Inside diameter up to 4600mm
Thickness up to 400mm
Material : S355NL Z25, S355JR, Q345E, S355J2 with LF+VD process
Process : Forging + Ring Rolling+ heat treatment (N)+final machining
Test and certificate : According to customer's requirements.
Normally we offered: 1. Raw material certificate (material chemical composition)
2. Heat treatment sheet report
3. Dimension inspection report
4. UT test report
Package : Seaworthy plywood packged on steel pallets as customer's request
Delivery Status: Final machining according to customer's drawings.
Rough machining products are also available.
Delivery Date : Decided by the amount and dimensions of wind tower flanges.
Usually we control the large diameter flanges' delivery time within 5 weeks after we receive your formal order
Third party inspection: besides our in-house inspection, you could also choose a third party inspection.
7000 Ton Hydraulic Press gives Rongcheng to have enough ability to offer large diameter forged ring with big amount.
5000 mm CNC Ring Roller could offer large diamter flanges up to ø4800mm size.
Advanced CNC ø5000mm lathes could offer precision machining for wind tower flanges.
Also CNC ø5000mm drilling machines are here to support large flange manufacturing.
Rongcheng Ring Forging is always here to support your needs