Duplex Steel Seamless Pipe
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
- Send E-mail: ss@gneesteel.com
- Tel: +8615824687445
The Duplex Steel Pipe gets its name from the dual nature present in the microstructure of the alloy. Duplex Stainless Steel Seamless Pipe have good mechanical characteristics and can be used in an as welded condition. Considered to be superior in comparison to austenitic alloys ASTM A312 TP304 or ASTM A312 TP316, the Seamless Duplex Pipe offers much better resistance to corrosion.
Standard Specifications for Duplex Steel Pipes
| Specification | ASTM A789/ ASME SA789 |
| Size | 3.35 mm OD To 101.6 mm OD |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Standard | ASTM, ASME, JIS, AISI, AMS, EN, SAE, DIN, NF, TOCT, DS, DTD, GB |
| Length | Single Random, Double Random, Standard & Cut length Pipe |
| Form | Round, Square, Hollow, Rectangular, Hydraulic, Coiled, Straight Pipes, "U" Shape, Pan Cake Coils etc. |
| End | Plain End, Beveled End, Treaded Pipe, Screwed ends |
| Schedule | SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS |
Features & Benefits
- More hard to machine and form than austenitics material
- Double design strength of austenitic and ferritic stainless steels
- Weldable with extra care in thick material
- Temperature limit 300 °C maximum
- Better toughness down to minus 80 °C but not suitable for cryogenic applications
- Various range of corrosion resistance to match application
- Best for resistance to stress corrosion cracking
Applications and uses of Duplex Steel Pipe
- Off-Shore Oil Drilling Companies
- Petrochemicals Plants
- DSS Pipes for production and transportation of oil and gas
- Condensers
- Power Generation
- Gas Processing
- Heat exchangers
- Structural and mechanical components
- Cooling pipes
- Sea Water Equipment
- Chemical and Pharmaceutical Equipment
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