Duplex Steel

DUPLEX STEEL

2205 Duplex Overview

 

Duplex 2205 is a nitrogen enhanced duplex stainless steel that was developed to combat common corrosion problems encountered with the 300 series stainless steels. “Duplex” describes a family of stainless steels that are neither fully austenitic, like 304 stainless, nor purely ferritic, like 430 stainless. The structure of 2205 duplex stainless steel consists of austenite pools surrounded by a continuous ferrite phase. In the annealed condition, 2205 contains approximately 40-50% ferrite. Often referred to as the work horse grade, 2205 is the most widely used grade in the duplex family of stainless steels.

 

The advantage of a duplex structure is that it combines the favorable qualities of a ferritic alloy (stress corrosion cracking resistance and high strength) with those of an austenitic alloy (ease of fabrication and corrosion resistance).

Application 
Components in the chemical industry, e.g. separator and heat exchanger parts, from the paper industry, oil and gas production, compressor parts, seawater desalination plants.

 

Duplex 2205
ASTM A 182, A 240, A 276, 
A 789, A 790, A 815
UNS S31803, S32205
NACE MR0175

Forms of Duplex 2205 Available

Sheet

Plate

Bar

Pipe & Tube (welded & seamless)

Fittings (i.e. flanges, slip-ons, blinds, weld-necks, lapjoints, long welding necks, socket welds, elbows, tees, stub-ends, returns, caps, crosses, reducers, and pipe nipples)

Welding Wire and Welding Electrode

 

---

 

Duplex Steel Pipes & Tubes

Range : ½” NB TO 24” NB IN SCH 5 , 10, 20 , 40 , STD , 60 , 80 , XS , 100 , 120 , 140 , 160 & XXS as Per NACE MR 01 75 
Type : SEAMLESS / ERW / WELDED/ FABRICATED
Length : Single Random, Cut Length
End : Plain End, Bevelled End, Threaded

Duplex Pipe & Super Duplex Pipe 
Standard : ASTM / ASME SA 790 

Grade : UNS NO S 31803 , S 32205

Test Certificate
Mill Test Certificate as per EN 10204 / 3.1

 

Duplex Pipe Exporters | Duplex Pipe Stockiest | Duplex Pipe Suppliers | Duplex Pipe Mumbai | Duplex Pipe India

Duplex Steel 2205 Pipe | Duplex Steel 2205 Tube.

 

---

 

Duplex Steel Buttweld Fittings

 

Range: 1/2"NB TO 24"NB IN SCH: 10s, 40s, 80s, 10, 20, 40, STD, 60, 80, XS, 100, 120, 140, 160, XXS available with NACE MR 01-75

 

Type : SEAMLESS / WELDED/ FABRICATED

 

Form

Elbows in Long & Short Radius in 45 deg, 90 deg, 180 deg.

Equal, Unequal Tee & Barred Tee.

Eccentric Reducer & Concentric Reducer.

Caps & Crosses.

Long & Short Stub End.

Swage Nipple & Barrel Nipple.

 

End : Duplex Steel Long Radius Bend
Long Radius Bend, Piggable Bend, Hot Bend with Radius R=3D, 5D, 6D, 8D, 10D & 20D.

Minimum wall thinning rate and ovality

No wrinkles

---

 

Duplex Steel Forged Fittings

Range¼” NB to 4” NB in 3000 LBS, 6000 LBS, 9000 LBS available with NACE MR 01-75.

Type :Socket Weld (S/W) & Screwed (SCRD)

Form :

Duplex Steel Elbow | Duplex Steel 45 deg | Duplex Steel 90 degree
Duplex Steel Tee | Duplex Steel Unequal Tee | Duplex Steel Equal Tee
Duplex Steel Union | Duplex Steel Full Coupling | Duplex Steel Half coupling

Duplex Steel Cross | Duplex Steel Cap | Duplex Steel Swage Nipple | Duplex Steel Plug | Duplex Steel Bush

Duplex Steel Butt Weld Pipe Fittings
Standard : ASTM / ASME SA 815 
Grade : UNS NO.S 31803, S 32205. 

Duplex Steel Forged Pipe Fittings
Standard : ASTM / ASME A/SA 182 
Grade : F 44, F 45, F51, F 53, F 55, F 60, F 61

Other : Customised Fittings

Test Certificate
Manufacturer Test Certificate as per EN 10204 / 3.1

 

---

 

Duplex Steel Flanges

We are well known Exporters, Suppliers & Stockiest of Duplex Stainless Steel Flanges / Super Duplex Flanges. Procured fro trusted vendors, these flanges are widely used in used engineering, mechanical and automobile industries.

 

Range : ½” NB to 36” NB

Standard : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150#, ASA 300# DIN ND 6,10,16,25,40 Etc.

 

Nace : NACE MR 01-75, MR 01 03

 

Type of Flanges

Duplex Steel Weld Neck Flanges – WNRF

Duplex Steel Socket Weld Flanges - SWRF

Duplex Steel Slip On Raise Face - SORF

Duplex Steel Blind Raise Face – BLRF

Duplex Steel Lap Joint

Duplex Steel Screwed (Threaded)

Duplex Steel Long Weld Neck

Duplex Steel Reducing

Duplex Steel Spectacle Blind

Duplex Steel Ring Joint

Duplex Steel Large Dia Ring

 

Duplex Steel Flanges Standard : ASTM / ASME A/SA 182

Grade : F 44, F 45, F51, F 53, F 55, F 60, F 61

 

SPECIFICATIONS AS PER THE INTERNATIONAL STANDARD ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE

 

---

 

Duplex Steel Plates

Ratnam Alloys  are offering Duplex Stainless Steel Plates. These steel plates are widely used in automobile and civil construction owing to their excellent strength and dimensional accuracy.

Range : 5 mm To 50 mm thick in 1000 mm TO 1250 mm width & 2500 mm Length

Type : Sheet, Plates, Flat, Strips, Profile, Blank ,Circle, Ring etc.

Duplex Steel Plate
Grade : S 31803 , S 32205
Test Certificate
Mill Test Certificate as per EN 10204 / 3.1

Clients can avail the offered products in various types such as flat, strips, sheet, plates, profile, blank, circle and ring.

 

---

 

Duplex Steel Bars

Offering a wide range of Duplex Steel Bar

Range : 5 mm To 250 mm Dia in 100 mm TO 3000 mm Length

Duplex Steel Bar & Super Duplex Bar
Standard : ASTM / ASME SA 276 

Grade : UNS NO. S 31803, S 32205 , S 32550 , S 32750 , S 32760, 2507, 2205 , F 51

Test Certificate
Mill Test Certificate