2507 super duplex stainless steel pipe is a high alloy duplex stainless steel with excellent chloride corrosion resistance and mechanical strength. It has a minimum PRE (pitting resistance equivalent) value of 42.5, making it particularly suitable for use in corrosive environments such as warm chlorinated seawater and acidic chlorine-containing media. It is widely used as a heat exchanger in offshore oil and gas exploration/production and petrochemical/chemical processing. Additionally, this grade is suitable for hydraulic and instrumentation applications in tropical marine environments.
High molybdenum, chromium and nitrogen content make 2507 super duplex stainless steel pipe highly resistant to chloride pitting and crevice corrosion. Its dual-phase structure provides excellent resistance to chloride stress corrosion cracking. It is important to note, however, that use of Duplex 2507 is limited to environments below 600°F (316°C). Prolonged exposure to high temperatures may reduce the toughness and corrosion resistance of 2507 alloy.
Duplex 2507 stainless steel pipe has good mechanical properties. Typically, the same design strength can be achieved using a lighter gauge 2507 material as using a thicker nickel alloy, and the resulting weight savings can significantly reduce overall manufacturing costs.
Chemical Composition of Duplex 2057 Stainless Steel Pipe
|
C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
N |
Cu |
|
0.030 max |
1.20 max |
0.035 max |
0.020 max |
0.80 max |
6.0–8.0 |
24.0–26.0 |
3.0–5.0 |
0.24–0.32 |
0.50 max |
Mechanical Properties of Duplex 2057 Stainless Steel Pipe
|
Yield Strength |
80 ksi min |
|
Tensile Strength |
116 ksi min |
|
Elongation (min 2") |
15% |
|
Hardness (Rockwell C Scale) |
32 HRC max |
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FAQ
Q. Can we visit your factory?
A. Of course you can, we welcome you to visit our factory, check our production line and understand our strength and quality.
Q. Can you arrange delivery for us?
A. Yes, we have appointed sea and railway freight forwarders, we get the best price and earlier shipment and professional service.
Q. Can you provide free samples?
A. Yes, we can provide free samples if we have stock. But the shipping cost is borne by the buyer.
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