Duplex 2205 / S31803 / 1.4462 Stainless Steel Pipe Corrosion Resistance SS Pipe Tube
| Product name | Stainless steel seamless pipe |
| Steel grade | 200 series,300 series,400 series |
| Standard | ASTM A213,A312,ASTM A269,ASTM A778,ASTM A789,DIN 17456, DIN17457,DIN 17459,JIS G3459,JIS G3463,GOST9941,EN10216, BS3605,GB13296 |
| Material | 304,304L,309S,310S,316,316Ti,317,317L,321,347,347H,304N,316L, 316N,201,202 |
| Surface | Polishing,annealing,pickling,bright |
| Type | Hot rolled and cold rolled |
| Stainless steel round pipe/tube |
| Size | Wall thickness | 1mm-150mm(SCH10-XXS) |
| Outer diameter | 6mm-2500mm (3/8"-100") |
| Stainless steel square pipe/tube |
| Size | Wall thickness | 1mm-150mm(SCH10-XXS) |
| Outer diameter | 4mm*4mm-800mm*800mm |
| Length | 4000mm,5800mm,6000mm,12000mm,or as required. |
| Trade terms | Price terms | FOB,CIF,CFR,CNF,Ex-work |
| Payment terms | T/T,L/C,westen union |
| Delivery time | Shipment within one week, subject to actual order quantity. |
General Properties
Duplex 2205 is a two-phase, ferritic, austenitic 22% chromium, 3% molybdenum, 5 to 6% nickel alloyed stainless steel. It is the most widely used duplex stainless steel grade and is characterized by high yield strength, double that of the standard austenitic stainless steel grades. It also demonstrates good fatigue strength, as well as outstanding resistance to stress corrosion cracking, crevice, pitting, erosion, and general corrosion in severe environments.
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.
Corrosion Resistance
2205 duplex stainless steel is a cost effective solution for many applications where the 300 series stainless steels are susceptible to chloride stress corrosion cracking. Stress corrosion cracking occurs when stainless steels are subjected to tensile stress, while in contact with solutions containing chlorides. Increasing temperatures also increase the susceptibility of stainless steels to stress corrosion cracking.
Chemical Composition, %
| Cr | Ni | Mo | C | N |
| 22.0-23.0 | 4.50-6.50 | 3.00-3.50 | .030 Max | 0.14-0.20 |
| Mn | Si | P | S | Fe |
| 2.00 Max | 1.00 Max | .030 Max | .020 Max | Balance |
Pipe dimension
- Out diameter 1/2''-36''
- Wall thickness Sch5s-XXS
- Length MAX 12M
Characteristics of Duplex 2205
- High resistance to chloride stress corrosion cracking
- Resistance to chloride pitting and crevice corrosion
- Good general corrosion resistance
- Good sulfide stress corrosion resistance
- High Strength
- Good weldability and workability
Applications:
- Chemical processing, transport and storage �C pressure vessels, tanks, piping, and heat exchangers
- Oil and gas exploration and processing equipment �C piping, tubing, and heat exchangers
- Marine and other high chloride environments
- Effluent scrubbing systems
- Pulp and paper industry �C digesters, bleaching equipment, and stock-handling systems
- Cargo tanks for ships and trucks
- Food processing equipment
- Biofuels plants
FAQ
Q1: What is your company's main business?
A:We mainly offer stainless steel material such as SS Coils,SS Strip Coils,SS Sheet & SS Pipe etc..
Q2:What is your advantages of your company?
A:We have many professional,technical personnel, more competitive prices and best after-sales service.
Q3:How can you control the quality?
A:Mill test certification is supplied with shipment,third party inspection is available.
Q4:What port you mainly export?
A: Export from Guangzhou /Shenzhen.
Q5:Can you offer the samples?
A:Small samples in stock can be offered by free.
Q6:What is your mainly export country?
A:We serve 50 countries mainly from Arab, Kuwait, Egypt, Turkey, Jordan, Brazil, India, Indonesia, South Africa etc.
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