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ASTM A240 S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet

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ASTM A240 S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet

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Large Image :  ASTM A240 S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet

Product Details:
Place of Origin: China
Brand Name: Rex Metal
Payment & Shipping Terms:
Minimum Order Quantity: 1PCS/1TON
Packaging Details: Standard Seaworthy Package
Delivery Time: 5-20days
Payment Terms: L/C, T/T, EXW, D/A, D/P, Western Union, MoneyGram
Supply Ability: 1000TON/MONTH
Detailed Product Description
Product Name: Duplex Stainless Steel Sheet/Plate Standard: ASTM, AiSi, ASTM A269, ASTM A213. Etc
Application: Industry, Agriculture, Construction, Etc Grade: 300 Series, 304/304L/316/316L/321/309S/310S, Etc
Heat Treatment: Bright Annealed, Etc Process Method: Cold Drawn, Hot Rolled, Cold Rolled
Inspection: 100% Surface Finish: Bright Annealed/ Polished
Certification: ISO Tolerance: According Customer's Requirement
Length: According To The Sizes Certificates: ISO9001:2008 & PED
NDT: Eddy Current Or Hydraulic Test Or UT Packing: Plywood Case Or Wooden Case

ASTM A240 S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet
Product Description

Chemical Composition

Fe, <0.03% C, 21-23% Cr, 4.5-6.5% Ni, 2.5-3.5% Mo, 0.8-2.0% N, <2% Mn, <1% Si, <0.03% P, <0.02% S



Duplex 2205 stainless steel (both ferritic and austenitic) is used extensively in applications that require good corrosion resistance and strength. The S31803 grade stainless steel has undergone a number of modifications resulting in UNS S32205, and was endorsed in the year 1996. This grade offers higher resistance to corrosion.

At temperatures above 300°C, the brittle micro-constituents of this grade undergo precipitation, and at temperatures below -50°C the micro-constituents undergo ductile-to-brittle transition; hence this grade of stainless steel is not suitable for use at these temperatures.

Key Properties

The properties that are mentioned in the below tables pertain to flat rolled products such as plates, sheets and coils of the ASTM A240 or A240M. These may not be uniform across other products such as bars and pipes.


Table 1 provides the compositional ranges for grade 2205 duplex stainless steel.

Table 1 - Composition ranges for 2205 grade stainless steels

Grade   C Mn Si P S Cr Mo Ni N
2205 (S31803)





















2205 (S32205)






















Mechanical Properties

The typical mechanical properties of grade 2205 stainless steels are listed in the table below. Grade S31803 has similar mechanical properties to that of S32205.

Table 2 - Mechanical properties of 2205 grade stainless steels

Grade Tensile Str
(MPa) min
Yield Strength
0.2% Proof
(MPa) min
(% in 50mm) min
Rockwell C (HR C) Brinell (HB)
2205 621 448 25 31 max 293 max


Physical Properties

The physical properties of grade 2205 stainless steels are tabulated below. Grade S31803 has similar physical properties to that of S32205.

Table 3 - Physical properties of 2205 grade stainless steels

Grade Density



Mean Co-eff of Thermal
Expansion (μm/m/°C)
Conductivity (W/m.K)


( J/kg.K)

0-100°C 0-315°C 0-538°C at 100°C at 500°C
2205 782 190 13.7 14.2 - 19 - 418 850


Grade Specification Comparison


Table 4 provides the grade comparison for 2205 stainless steels. The values are a comparison of functionally similar materials. Exact equivalents may be obtained from the original specifications.

Table 4 - Grade specification comparisons for 2205 grade stainless steels

Grade UNS
Old British Euronorm





BS En No Name
2205 S31803 / S32205 318S13 - 1.4462 X2CrNiMoN22-5-3 2377 SUS 329J3L


Possible Alternative Grades

Given below is a list of possible alternative grades, which may be chosen in place of 2205.

Table 5 - Grade specification comparisons for 2205 grade stainless steels

Grade Reasons for choosing the grade
904L Better formability is needed, with similar corrosion resistance and lower strength.
UR52N+ High resistance to corrosion is required, e.g. resistance to higher temperature seawater.
6%Mo Higher corrosion resistance is required, but with lower strength and better formability.
316L The high corrosion resistance and strength of 2205 are not needed. 316L is lower cost.


Corrosion Resistance

Related Stories

  • Stainless Steel - Grade 303 (UNS S30300)
  • Stainless Steel - Grade 416 (UNS S41600)
  • Stainless Steel - Grade 430 (UNS S43000)

Grade 2205 stainless steel exhibits excellent corrosion resistance, much higher than that of grade 316. It resists localized corrosion types like intergranular, crevice and pitting. The CPT of this type of stainless steel is around 35°C. This grade is resistant to chloride stress corrosion cracking (SCC) at temperatures of 150°C. Grade 2205 stainless steels are apt replacements to austenitic grades, especially in premature failure environments and marine environments.

Heat Resistance

The high oxidation resistance property of Grade 2205 is marred by its embrittlement above 300°C. This embrittlement can be modified by a full solution annealing treatment. This grade performs well at temperatures below 300°C.

Heat Treatment

The best suited heat treatment for this grade is solution treatment (annealing), between 1020 - 1100°C, followed by rapid cooling. Grade 2205 can be work hardened but cannot be hardened by thermal methods.


Most standard welding methods suit this grade, except welding without filler metals, which results in excess ferrite. AS 1554.6 pre-qualifies welding for 2205 with 2209 rods or electrodes so that the deposited metal has the right balanced duplex structure.

Adding nitrogen to the shielding gas ensures that adequate austenite is added to the structure. The heat input must be maintained at a low level, and the use of pre or post heat must be avoided. The co-efficient of thermal expansion for this grade is low; hence the distortion and stresses are lesser than that in austenite grades.


The machinability of this grade is low due to its high strength. The cutting speeds are almost 20% lower than that of grade 304.


The fabrication of this grade is also affected by its strength. Bending and forming of this grade requires equipment with larger capacity. Ductility of grade 2205 is lesser than austenitic grades; therefore, cold heading is not possible on this grade. In order to carry out cold heading operations on this grade, intermediate annealing should be carried out.



Some of the typical applications of duplex steel grade 2205 are listed below:

  • Oil and gas exploration
  • Processing equipment
  • Transport, storage and chemical processing
  • High chloride and marine environments
  • Paper machines, liquor tanks, pulp and paper digesters

Product Details and Surface Finish

ASTM A240  S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet 0ASTM A240  S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet 1ASTM A240  S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet 2ASTM A240  S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet 3ASTM A240  S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet 4


Packing and Delivery

ASTM A240  S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet 5ASTM A240  S32205 Alloy 2205 Duplex Stainless Steel Plate Sheet 6

Company Profile


Jiangsu Rex Metal Products Co., Ltd was established in 2010, located in Jiangsu Province,and has our factories of with 2000square meters. Our main products include steel plates,steel pipes, steel bars(rods) etc, which have been exported to over 30 countries like England, Australia, South Korea, Russia, Brazil, Turkey, India, Indonesia, South Africa, Ecuador, Uzbekistan, Thailand etc.

We are in the first class agency of Chinese state-owned enterprise, Tisco Steel group, BaoSteel (Shanghai) and WuSteel Group.

We have advanced production facilities, producing center with cutting machines, punching machines, water jet cutting machines, polishing machines, plate shearers and draw benches etc. We have passed theIS09001 quality system,and EU CE system. Our aim is to provides with good quality steel products and better service. We support SGS, BV and other third party test.

We will always welcome all the customers and friends all over the world to visit our factories and reach great cooperations.




Q1:How to make a sample order?
Leave a message or send an email to us, mention the grade, size and quantity of thesampleas you need. We will prepare for you.

Q2:What is your delivery time?
For stocks, we can send the goods to loading port within 7 days after receiving your deposit For production period, it usually needs about 15days- 30 days after receiving the deposit

Q3:What is your shipping port?
Shanghai port, Ningbo port, Tianjin Port.

Q4:What is your payment terms?
Usually 30% deposit by TT in advance and balance against copy of BL or LC at sight

Q5:What is your company locations?
Our office is located in Wuxi City, Jiangsu province. We have two indoor warehouses to ensure enough stock for different materials with sizes. You are welcome to visit our factory and office anytime.

Contact Details
Jiangsu Rex Metal Products Co., Ltd.

Contact Person: Penny

Tel: +8618112367896

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