UNS S31803 Duplex 2205 Stainless Steel Pipe
Product Details
Duplex 2205 Stainless Steel Pipe
,UNS S31803 Stainless Steel Pipe
UNS S31803 Duplex 2205 Stainless Steel Pipe
Available Size:
OD : 6-219.1mm
WT : 0.5-12.7 mm
L: 20 meter Max
Available Specification:
ASTM/ASME A789/SA 789; ASTM/ASME A790/SA790
Delivery Condition:
Annealed and Pickled
Bright and Annealed
Annealed and Pickled + Polishing
Bright and Annealed + Polishing
The duplex material is a kind of ferrite-austenitic duplex stainless steel ,which is integrated conductive
properties both of ferrite and austenitic and provided with higher intensity as well as tenacity .on basis
of high content of chrome and molybdenum,the duplex material is endowed with all sorts capability of corrosion.
| UNS | Chemical , % | ||||||||
| C max | Mn max | P max | S max | Si max | Ni | Cr | Mo | N | |
| S31803 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 4.5-6.5 | 21.0-23.0 | 2.5-3.5 | 0.08-0.20 |
| S32205 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 4.5-6.5 | 22.0-23.0 | 3.0-3.5 | 0.14-0.20 |
| S32750 | 0.030 | 1.20 | 0.035 | 0.020 | 0.80 | 6.0-8.0 | 24.0-26.0 | 3.0-5.0 | 0.24-0.32 |
| S32760 | 0.050 | 1.20 | 0.030 | 0.010 | 1.00 | 6.0-8.0 | 24.0-26.0 | 3.0-4.0 | 0.20-0.30 |
| UNS | Tensile Strength Min Ksi(Mpa) | Yield Strength Min Ksi(Mpa) | Elongation in 2 in or 50 mm ,Min,% | Rockwell Hardness Max |
| S31803 | 90(620) | 65(40) | 25 | 95 |
| S32205 | 95(660) | 70(485) | 25 | 88 |
| S32750 | 116(800) | 80(550) | 15 | 90 |
| S32760 | 109-130(750-895) | 80 (550) | 25 | 95 |
This kind of material possesses low heat expanding while its conductivity is higher than austenitic stainless
steel and owns good joining property ,It is applied in exchangers and pipelines of petroleum production,
processing and transportation/Crude oil and natural gas and sea water desalination / Chemical processing
and transportation equipment /Chloride solution processing,treatment and transportation /chemical tankers,
oil tankers and water processing pipelines.
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