S31083 Duplex 2205 Super Stainless Steel Seamless Pipe

S31083 Duplex 2205 Super Stainless Steel Seamless Pipe

Application:

Pressure vessel, high pressure pipe line, heat exchanger(chemical processing industry), oil and gas pipeline

Size Range:
OD:21.3-711mm

WT: SCH5/SCH10/SCH40/SCH80/SCH160/XXS(1.65mm-30.75mm)

Length: max 12000mm

Material:

Grade: Duplex 2205

Manufacture:

Pipes shall be made by the seamless process and shall be either hot finished or cold finished.

Mechanical Properties:

Superior Surface Finish:

The traditional annealing:

Open furnace---Oxygen atmosphere---form Scale, tarnish the material, For more than 12m tubes this method is hard to clean inner surface.

A special bright annealing:

Closed furnace---Intert atmosphere use noble gases(Nitrogen and argon) Preventing Oxygen to contact with material---Surface finish is clean, bright and precision, which is an excellent starting point for further process, like electro-polishing and mechanical polishing. For more than 12m tubes, this method is much cleaner smoother on both inner and outer surface.

Packing:

Each tube in a plastic bag, then put tubes in a seaworthy woven bag ,each unit weight 400kg-500kg/bundle.

With strong wood structure box packing by containers loading and shipping.

Or as customer's requirement.

20 ft container - GP: 5.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ Max Gross Weight: 25MT/container.
40 ft container - GP: 11.8m (Length) * 2.13m (Width) * 2.18m (Hight) ------ Max Gross Weight: 27MT/container.
40 ft container - HG: 11.8m (Length) * 2.13m (Width) * 2.72m (Hight) ------ Max Gross Weight: 27MT/container.

Port Shanghai

Test:

• PMI test
• Hydraulic test
• 100%Inner cleaned by sponge
• 100%Dimension test
• 100%Surface test