Xi'an Tiptop Machinery Co.,Ltd |
Duplex 2507, which is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel. This alloy is designed for applications which require exceptional strength and corrosion resistance; examples include applications in chemical processing, petrochemical, and seawater equipment. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity and a low coefficient of thermal expansion. The high chromium, molybdenum, and nickel levels provide excellent resistance to pitting, crevice, and general corrosion.
Duplex 2507 displays its superior performance in a number of aspects:
We are one of the leading suppliers of Super Duplex 2507 CoiledTubing in China. A lower content of carbon in 2507 tubing greatly reduces the risk of carbide precipitation, which can occur at the grain boundaries during heat treatment. 2507 super duplex stainless steel pipe is particularly useful in applications involving the offshore oil and gas industries as well as in wells with either naturally high brine levels or where brine solution has been injected to enhance recovery in these wells.
Chemical Composition:
Material | UNS | Standard | C | Mn | P | S | Si | Ni | Cr | Mo | N | Cu |
2507 | S32750 | ASTM A789 | 0.030 | 1.20 | 0.035 | 0.020 | 0.80 | 6.0-8.0 | 24.0-26.0 | 3.0-3.5 | 0.24-0.32 | 0.50 |
Size range:
Coiled tubes | |||
Inner diameter | Wall thickness (mm) | ||
in. | mm | min | max
|
3/8 | 9.53 | 1.2 | 2 |
1/2 | 12.70 | 1 | 2.6 |
5/8 | 15.88 | 1 | 3 |
3/4 | 19.05 | 1.1 | 4 |
1 | 25.40 | 1.3 | 5 |
Other sizes are available upon customers' request.