ASTM A815 WPS31803 Duplex Steel S31803 Butt-welding Seamless Welded Pipe Cap

1. Specifications

2.ASTM A815 UNS S32205 DUPLEX STEEL BUTT WELD PIPE CAP DIMENSION

3. SEFUL INFO:

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.

Duplex Steel grades

2205 Duplex Steel | SAF 2205

2205 is a duplex (austenitic-ferritic) stainless steel characterized by:

High resistance to stress corrosion cracking (SCC) in chloride-bearing environments

High resistance to stress corrosion cracking (SCC) in environments containing hydrogen sulphide

High resistance to general corrosion, pitting, and crevice corrosion

High resistance to erosion corrosion and corrosion fatigue

High mechanical strength - roughly twice the proof strength of austenitic stainless steel

Physical properties that offer design advantages

Good weldability

4. Standards

UNS S31803, S32205

EN number 1.4462

EN name X2CrNiMoN 22-5-3

W.Nr. 1.4462

DIN X2CrNiMoN 22 5 3

SS 2377

AFNOR Z2.CND22.05.03

5. Product standards

Chemical composition (nominal) %

Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fittings for Huitong Group and assisting another subsidiary company of Huitong Group:Zhengzhou Huitong Machanical Equipment Co.,Ltd., in exporting machanical equipment.

Zhengzhou Huitong Pipeline Equipment Co.,Ltd.,with the strong support of Huitong Group,and years'development and innovation, are more and more professional in technical service and can manufacure products with all kinds of material,shape and size. Especially in elbows, tee, reducer, flange and pipe cap etc., we have gained more than 20 product patent, and hundreds of technology patent. Also,we have gradually taken an ireplacable role in High-pressure,high-temperature and anti-corrosion area. With the continuous construction of engery in China,such as petrol gas,electric power,etc.,our company has become the purchasing center of whole set fittings for such projects.In 2009,a foreign trade team established,is manily engaged in oil gas and electric power projects abroad.By now, our products have been exported to

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