2205 duplex stainless steel sheet and plate

Stock Thickness: 0.4-12.0mm
Production thickness: 8-200mm
Width: 600-2000mm
Length: 1000-8000mm
Surface: No.1,2B,NO.4/4K/hairline,satin,6k,BA,mirror/8K
Standard: ASTM A240,ASME SA240,JIS G 4304,EN 10088-2
Equivalent designations:
Duplex 2205, UNS S32205, UNS S31803, W.Nr. 1.4462, F51

Product introduction

2205 duplex stainless steel sheet has excellent mechanical properties and corrosion resistance, as well as good weldability, it has a wide range of applications in the petroleum and natural gas industry, marine engineering, chemical industry and other industries.

Corrosion Resistance of 2205 Stainless Steel:
1. Uniform corrosion
Because of the chromium content (22%), molybdenum (3%) and nitrogen content (0.18%), the corrosion resistance of 2205 is better than 316L and 317L in most environments.
2. Local corrosion resistance
The content of chromium, molybdenum and nitrogen in 2205 duplex stainless steel makes it have strong resistance to pitting and gap corrosion in oxidizing and acidic solutions.
3. Stress corrosion resistance
Dual-phase microstructure of stainless steel is helpful to improve the stress corrosion cracking resistance of stainless steel. Under certain conditions of temperature, tension, oxygen and chloride, chloride stress corrosion will occur in austenitic stainless steel. Because these conditions are not easy to control, the use of 304L, 316L and 317L is limited in this respect.
4. Anti-corrosion fatigue
2205 duplex steel has high corrosion fatigue strength due to its high strength and corrosion resistance. Processing equipment is vulnerable to corrosion environment and loading cycle, 2205 features are very suitable for such applications.

1. Pressure vessels, high-pressure storage tanks, high-pressure pipelines, heat exchangers (chemical processing industry).
2. Oil and gas pipelines and heat exchanger fittings.
3. Sewage treatment system.
4. Pulp and paper industry classifier, bleaching equipment, storage and processing system.
5. Rotary shafts, pressing rolls, blades, impellers, etc. in high-strength corrosion-resistant environment.
6. Cargo boxes for ships or trucks
7. Food Processing Equipment

Chemical composition:

Grade UNS Chemical Component %
C Mn P S Si Cr Ni Mo N
S31803 0.03 2.00 0.03 0.02 1.00 21.0-23.0 4.50-6.50 2.50-3.50 0.08~0.20
2205 S32205 0.03 2.00 0.03 0.02 1.00 22.0-23.0 4.50-6.50 3.00-3.50 0.14-0.20

Mechanical properties:

UNS Tensile strength (Min.) Yield strength (Min.) Elongation (2in)Min. Hardness (Max.)
ksi MPa ksi MPa % HBW
S31803 90 620 65 400 25 290
S32205 95 655 5 450 25 290

Chanson Metals provide:

1. Professional packing team guarantee goods arrive in good condition (anti-wet paper +wooden pallet)
2. Professional loading team avoid package damage
3. Goods label with traceable batch number and shipping information
4. Leveling machine and polishing machine makes various size and surface available.
5. Varous sizes and materials stock more than 1000 tons

Send your message to us :

Our Products