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UNS NO. S31803 Duplex Steel Sheets

Our speciality alloy division at NG Industries offers a full range of ASTM A240 UNS S31803 Duplex Steel Sheets Plate, Duplex and Super Duplex stainless steels in sheet, plate, and round bar form. We have extensive in-house processing capabilities which make us an ideal one stop shop for all your requirements. These grades are designed to offer a super combination of heat resistance, high temperature corrosion resistance, toughness and strength, and are used in the world’s most technically demanding industries. Our inventory position and worldwide mill relationships make us a leader in the distribution industry.

NG Industries are Manufacturer, Supplier and Exporter of Duplex Steel UNS S31803 Sheets and Plates. These sheets are manufactured using high-grade metals that are sourced from accredited vendors of the industry. Duplex Steel UNS S31803 Sheets and Plates are available with us at an affordable price. The duplex UNS S31803 grade is the most frequently used duplex grade. The grade generally has a higher corrosion resistance compared to the austenite steels. The grade also has a yield strength, double that of conventional austenitic stainless steels. The designation 2205 reflects the amounts of chromium (22%) and nickel (5%) in the alloy. The chemical composition range that was first set for SAF 2205 (UNS S31803), was found to be too broad. The composition was modified to optimize corrosion resistance and to avoid inter-metallic phases. The modified version of SAF 2205 (UNS S32205), has a tighter range for chromium, molybdenum and nitrogen in the higher end of the original range.

Specification

Standards : ASTM/ASME
A240 UNS S31803 Plates ASTM/ASME
A240 UNS S31803 Sheets
Material Grades : ASTM / ASME SA 240 UNS no. S31803

Chemical Composition :

Grade

 

C

Mn

Si

P

S

Cr

Mo

Ni

N

2205 (S31803)

Min

Max

-

0.030

-

2.00

-

1.00

-

0.030

-

0.020

21.0

23.0

2.5

3.5

4.5

6.5

0.08

0.20

2205 (S32205)

Min

Max

-

0.030

-

2.00

-

1.00

-

0.030

-

0.020

22.0

23.0

3.0

3.5

4.5

6.5

0.14

0.20

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