Super duplex pipe

Super duplex material comes with additional strength benefits along with the features of standard duplex ss.The dual phase microstructure makes it stronger and enhances its corrosion resistance.The super duplex pipe has a higher nickel content and thus, it is quite expensive.

The material can resist acids, chloride and caustic solutions.They offer better resistance to stress corrosion cracking and mechanical resistance than other standard ss or duplex alloys.

The super duplex steel pipe shows good mechanical properties like tensile strength of 795 MPa and yield strength of 550 MPa.It can be manufactured using different processes like cold pilgering, extrusion, tube mill and piercing.This should be followed by a heat treatment and mechanical testing.

The super duplex pipe suppliers recommend forging within 1100-1250 °C.This is followed by a reheat process and then the material is cooled down in still air.

Regent steel is best super duplex stainless steel pipe supplier in India at a fair price, view SDSS tube critical crevice temperature range

The critical crevice temperature indicates the point at which crevice corrosion can become a significant concern.For super duplex stainless steel pipe, the CCT is within -50°C to 70°C.However, the exact temperature depends on the duplex grade, heat treatment executed and specific environment.

You can contact your supplier to know about the exact CCT and ensure if it would be a concern for your given application.

Select super duplex seamless pipe from our online inventory ranging from 0.3 to 12.7 mm in wall thickness and 6 to 12 meter in length, must check is SDSS tubing heat treatable ?

Heat treatment of the super duplex seamless pipe is generally limited to solution annealing.It helps to restore the microstructure and properties of the material after hot forming.The process helps to dissolve and homogenize any precipitated phases along with improving its mechanical properties, toughness and corrosion resistance.

Typically super duplex is heated at 1050-1100 °C, and then they are rapidly quenched in various suitable mediums.

If you're seeking for stockist of super duplex welded pipe in size range from 4 mm to 219 mm OD, you've come to the right place, see SDSS tube other specification

Purchase super duplex seamless tube in various types including annealed, redrawn, heat exchanger etc with sample preservation at 100% here

Get online availability of super duplex steel pipe conforming to ASTM A790/ A789 in all international standards, see here chemical, mechanical properties and equivalent grades

The super duplex tube cannot be hardened by heat treatment, but they can be work hardened.

The super duplex tubing is particularly suitable for heat exchangers and tubes & pipes for processing oil & gas.It can also be used for chloride containing processes and chemical tankers.

They are widely used in marine environments along with paper & pulp manufacturing.Super duplex materials are also used for manufacturing structural and mechanical components.

The common wall thickness of super duplex steel welded tube can range within 0.33 to 20 mm.However, depending on the applications where they will be used, clients can customize the thickness of the tubes.

If the welded SDSS heat exchanger tubes are used in high pressure or extremely corrosive environments, then a thickness of more than 20 mm might be required.You can contact experienced professionals at Regent Steel & Engineering Co.to get an idea about this.