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2205 Material Properties
2205 duplex stainless steel combines the characteristics of
austenitic and ferritic steels, with excellent strength and
corrosion resistance. It has outstanding resistance to chloride ion
stress corrosion, pitting corrosion, and crevice corrosion, making
it very suitable for high salt, high pressure, and high temperature
working conditions. In addition, 2205 has stable and reliable
mechanical properties in high-pressure environments, and is widely
used in industrial fields such as oil and gas, marine engineering,
and chemical engineering that require strict material requirements.
2205 Application Scenarios
2205 thick walled duplex steel seamless pipes are widely used in
offshore oil platforms, subsea pipeline systems, chemical plant
pipelines, desalination units, heat exchangers, and high-pressure
process pipelines. Especially suitable for high chlorine, high
salt, and high-pressure environments, it performs excellently in
extending pipeline service life and reducing equipment maintenance
costs, and is highly trusted by global customers, helping
enterprises achieve safe and efficient production and operation.
Advantages of SMLSCO Pipe:
SMLSCO has a long-term stock of over 2000 tons of seamless pipes,
including TP2205 duplex steel thick walled pipes (Sch40), which can
be shipped in as little as 2 weeks for regular specifications. Bulk
procurement of high-quality raw materials such as TSINGSHAN
effectively reduces overall costs; All products undergo strict
three-level quality inspection and 100% shipment inspection, with
stable and reliable product performance, and hold PED
certification, meeting the global industrial customers' procurement
needs for high quality, fast delivery, and low cost.
Inspection for SMLSCO Pipe:
To ensure the quality stability of TP2205 thick walled duplex steel
seamless pipes, we use spectral composition analysis (PMI) to
accurately detect the raw materials; Perform Eddy Current Testing
during the production process to strictly control surface and
internal defects; During the finished product stage, size
measurement, hardness testing, liquid penetrant testing, and
non-destructive testing (NDT) are implemented to ensure the
reliability and safety of the pipeline.
| 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 | - |
| 2205 | ||||||||||
| 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 |
| 2507 | ||||||||||
| 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 |