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Address: No. 501, Changsheng South Road, Occident Biotechnology Industry Park, Jiaxing, Zhejiang
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Stainless Steel Round Pipe Polished SS Tube Duplex 2205 With Stock
Stainless Steel Round Pipe polished SS Tube Duplex 2205 with stock
Stainless steel is an alloy of Iron with a minimum of 10.5% Chromium. Chromium produces a thin layer of oxide on the surface of the steel known as the passive layer. This prevents any further corrosion of the surface. Increasing the amount of Chromium gives an increased resistance to corrosion.
Stainless steel also contains varying amounts of Carbon, Silicon and Manganese. Other elements such as Nickel and Molybdenum may be added to impart other useful properties such as enhanced formability and increased corrosion resistance.
Application
a) Petroleum
b) Chemical industry
c) Instrument
d) Industrial transportation
e) Mechanical structure industry
f) Need high corrision ability pipe's industry, such as offshore industry etc
Advantages
a) Superior surface finish,
b) Better mechanical property
c) More precise dimension
d) Perfect inspection method and inspection equipment
Super duplex Stainless Steel is a highly alloyed ,
good performance duplex steel with a pitting resistance . Super
Duplex offers good resistance to pitting and crevice corrosion . It
is suited for use in aggressive environments . It also has good
resistance to stress corrosion cracking in chloride and sour
environments . And it has good resistance to erosion corrosion and
corrosion fatigue .
Super duplex stainless such as duplex is a mixed
microstructure of austenite and ferrite which has improved strength
over ferritic and austenitic steel grades . The main difference is
super duplex has a higher molybdenum and chromium content which
gives the material greater corrosion resistance .
Super duplex has the same benefits as its counterpart
- it has lower production costs when compared with similar ferritic
and austenitic grades and due to the materials increased tensile
and yield strength , in many cases this gives the purchaser the
welcomed option of purchasing smaller thicknesses without the need
to compromise on quality and performance .
| ASTM A790 Standard |
| 2205 / S32750 Elements |
| (C) Carbon , max : 0.030 |
| (Mn) Manganese , max : 1.20 |
| (P) Phosphorus , max : 0.035 |
| (S) Sulfur , max : 0.020 |
| (Si) Silicon , max : 0.80 |
| (Ni) Nickel : 6.0 - 8.0 |
| (Cr) Chromium : 24.0 - 26.0 |
| (Mo) Molybdenum : 3.0 - 5.0 |
| (Fe) Iron : -- |
| (Cu) Copper , max : 0.5 |
| (N) Nitrogen : 0.24 - 0.32 |
Specifications :
| DN | NPS(Inch) | D(mm) | SCH5S | SCH10S | SCH40S | STD | SCH40 | SCH80 | XS | SCH80S | SCH160 | XXS |
| 6 | 1/8 | 10.30 | - | 1.24 | 1.73 | 1.73 | 1.73 | 2.41 | 2.41 | 2.41 | - | - |
| 8 | 1/4 | 13.70 | - | 1.65 | 2.24 | 2.24 | 2.24 | 3.02 | 3.02 | 3.02 | - | - |
| 10 | 3/8 | 17.10 | - | 1.65 | 2.31 | 2.31 | 2.31 | 3.20 | 3.20 | 3.20 | - | - |
| 15 | 1/2 | 21.30 | 1.65 | 2.11 | 2.77 | 2.77 | 2.77 | 3.73 | 3.73 | 3.73 | 4.78 | 7.47 |
| 20 | 3/4 | 26.70 | 1.65 | 2.11 | 2.87 | 2.87 | 2.87 | 3.91 | 3.91 | 3.91 | 5.56 | 7.82 |
| 25 | 1 | 33.40 | 1.65 | 2.77 | 3.38 | 3.38 | 3.38 | 4.55 | 4.55 | 4.55 | 6.35 | 9.09 |
