Grade: 2205

Thickness: 1.5-12mm

OD: 10-426mm

Length: 6000mm or as customzied

Brand : BAOSTEEL,AOXIANG

Standard: ISO,ASTM,SUS,GB

Surface: 2B,BA,6K,8K,Polished,

Place of origin: China (mainland)

Payment terms : 30% TT as deposit or L/C at sight

Standards

ASTM/ASME ................A240 UNS S32205/S31803

EURONORM ................1.4462 X2CrNiMoN 22.5.3

AFNOR..........................Z3 CrNi 22.05 AZ

DIN ..............................W.Nr 1.4462

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.

 

Chemical Properties

Mechanical Properties

Corrosion Resitance
1. Due to its high chromium, molybdenum, and nitrogen content, Duplex 2205 demonstrates superior corrosion resistant properties to 316 and 316L in most environments
2. Chromium, molybdenum, and nitrogen content also provide high resistance to pitting and crevice corrosion, even in oxidizing and acidic solutions
3.Resistant to chloride stress corrosion cracking and temperatures of up to about 302°F (150°C)
4. The presence of ferrite provides for good performance of Duplex 2205 in caustic environments

Heat Resitance
1.Similar to other duplex stainless steels, Duplex 2205 has good oxidation resistance at high temperatures
2. Subject to embrittlement when exposed to temperatures above 572°F (300°C) even when exposed for short periods of time; Duplex 2205 is therefore not recommended for use above 572°F (300°C)
 

Applications
1). Chemical processing, transport and storage – pressure vessels, tanks, piping, and heat exchangers
2).Oil and gas exploration and processing equipment – piping, tubing, and heat exchangers
3). Marine and other high chloride environments
4). Effluent scrubbing systems
5).Pulp and paper industry – digesters, bleaching equipment, and stock-handling systems
6).Cargo tanks for ships and trucks
7).Food processing equipment
8).Biofuels plants

Process

Welding Characteristics

A. Possesses good weldability
B. Should not generally be welded without filler metal as this may result in excessive ferrite

Heat-Treatment
A. Annealing temperature range is 1868 to 2012°F (1020 to 1100°C)
B. Cannot be hardened by heat treatment – but Duplex 2205 does work-harden
C.Special consideration is needed to compensate for a higher coefficient of thermal expansion to avoid warping and distortion

Process -hot forming

Most Duplex 2205 producers recommend a maximum hot forming temperature between 2010 and 2100°F (1100 to 1150°C). If the shape of the work piece is not compact, the edges may be significantly cooler than the bulk, and there is risk of cracking in the cooler regions.

Process -Cold Forming

RFQ

Q1: Can I get some samples?
A: Yes, we can supply free sample, but the shipping cost should be paid by our customers.
Q2: How to make payments?
A: 30% T/T in advance , the balance before shippment.
Q3: How to confirm the Product Quality before placing orders?
A:You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. The third-party will be accepted.
Q4:What's your MOQ?
A:Our MOQ is 1.5 ton. 
Q5: How about delivery lead time?
A:Delivery lead time: About 7-15 days after payment confirmed. 
Q6:Is there a discount?
A:Different quantity has different discount.
Q7: Are you trading company or manufacturer ?
A: We are factory. Our factory is located in Wuxi, Jiangsu,about two hours drive from shanghai port.