Duplex S31803 Stainless Steel Cold Drawn Steel Bar With En 1.4462

Duplex S31803 Stainless Steel Cold Drawn Steel Bar With En 1.4462

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).

Usage of 2205 Duplex stainless steel should be limited to temperatures below 600° F.

Extended elevated temperature exposure can embrittle 2205 stainless.

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.

The combination of chromium, molybdenum and nitrogen convey the good resistance of 2205

to chloride pitting and crevice corrosion. This resistance is extremely important for services

such as marine environments, brackish water, bleaching operations, closed loop water systems

and some food processing applications. The high chromium, molybdenum and nitrogen contents

of 2205 provide corrosion resistance superior to common stainless steels, such as, 316L and 317L

in most environments.

Chemical Composition, %

In what applications is Duplex 2205 used?

• Chemical process vessels, piping and heat exchangers
• Pulp mill digesters, bleach washers, chip pre-steaming vessels
• Food processing equipment
• Oil field piping and heat exchangers
• Flue gas desulfurization equipment

ASTM Specifications

Mechanical Properties
Specified Tensile Properties ASTM A240

1) Size and type:

Hexagon Bolt: M6-M64 full thread or half thread
Hexagon Nut: M3-M64
Threaded Rod:4-2000mm
Plain washers:M3-M64
And heavy hex bolts and nuts with all sizes

2) Treatment: cold forging

Super duplex stainless steel F55, F51, F53 HastelloyB & C, Inconel, Incoloy etc.

2. Standards: GB, DIN, JIS, AISI/ASTM/ANSI/AMSE and BS EN, etc.

3. Packing: Cartons then pallet, or wooden box, or by clients' requirements.

4. Exported countries: United States, Germany, Saudi Arabia, South Korea, etc.

5. factory price, accept small order and short delivery time1

Jiangsu Mittel Steel Industrial Limited is  located in Wuxi City,  a beautiful city near Shanghai.  Wuxi is close to  Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transportation. , Wuxi become the biggest  stainless steel sheet ,plate and coil  supply Centers in China. Jiangsu Mittel Steel Industrial Limited was established in 1998 years. as one of the largest stockists and manufacturers of industrial grade Stainless Steel products and derivatives in Wuxi ,We keep a stock of 50000 tons every month, so we can delivery goods in fast time.

Our company supplies cold/hot-rolled stainless steel sheets,stainless steel coils and stainless steel Plate to many steel factories from athome and abroad, including Shanxi Taigang Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS), Shanghai BAO STEEL, Ningbo Baoxin and steel factories in Taiwan area, Mainland Chinese and foreign countries and regions. 

Our long-term business lines are 201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S ,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B, BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also engaged in the long-term supply of homemade & imported medium and thick plates, galvanized and carbon steel products. 

Adhering to the principle of "quality first and customer foremost",our company will offer long-term service to nationwide manufacturers of household appliances, elevators, tableware, ornaments, tanks and machines. We can offer precise frosted wiredrawing, 8K mirror finishing and skim board oil-abrasion of various specifications at any time. The precisely-processed products will meet your requirements for high quality. Our company is a modern enterprise integrating distribution and storage. 

If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.