S31803 / S32750 2205 / 2507 Annealed & Pickeled Duplex Steel Tube
For Instrument
ASTM A790 2507 duplex steel pickling tube are always purchased by
the clients who need high corrosion tubes .
Compared to stainless steel tubes , duplex steel tubes have more
higher corrosion ability . They can be used in sea industry .
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 .
Item | Description |
Basic Information | Material Grade | S32205 , S31803 , S32304 , S32750 , F51 , F53 , 2205 , 2507 etc |
Outer Diameter | 3.18mm - 101.6mm |
Wall Thickness | 0.5mm - 20mm |
Length | Normally fixed length 6m , can as per customer’s requirement |
Standard | ASTM A789 ; ASTM A790 ; EN 10216-5 etc. |
Process Method | Cold Drawn or Cold Rolled |
| UNS Designation | C | Si | Mn | P | S | Cr | Ni | Mo | N | Cu |
| max | max | max | max | max |
| S31803 | 0.03 | 1 | 2 | 0.03 | 0.02 | 21.0 - 23.0 | 4.5 - 6.5 | 2.5 - 3.5 | 0.08 - 0.20 | - |
| S32205 | 0.03 | 1 | 2 | 0.03 | 0.02 | 22.0 - 23.0 | 4.5 - 6.5 | 3.0 - 3.5 | 0.14 - 0.20 | - |
| S32750 | 0.03 | 0.8 | 1.2 | 0.035 | 0.02 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 5.0 | 0.24 - 0.32 | 0.5 max |
| S32760 | 0.05 | 1 | 1 | 0.03 | 0.01 | 24.0 - 26.0 | 6.0 - 8.0 | 3.0 - 4.0 | 0.20 - 0.30 | 0.50 -1.00
|
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
