UNS S32750 Buttweld Fittings
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Duplex Steel UNS S32750, also known as SAF 2507, is a super duplex stainless steel that offers a unique combination of enhanced mechanical properties and excellent corrosion resistance. This steel grade is designed for applications in aggressive environments where traditional austenitic stainless steels might not provide adequate performance. Duplex Steel UNS S32750 Buttweld Fitting are components used in piping systems that are made from this specific steel grade and are used to connect pipes of different diameters or change the direction of flow.
Super Duplex S32750 Buttweld Fitting Specification
| Specifications | ASTM A815/ ASME SA815 |
|---|---|
| Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
| Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| Type | DN15-DN1200 |
| Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A815 Grade S32750 Pipe Fitting |
| Size Range | ½" NB to 24" NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A815 S32750 Buttweld Fitting |
| Manufacturing process | Push, Press, Forge, Cast, etc. |
| Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
Key features of Duplex Steel UNS S32750 include:
Duplex Structure: The term "duplex" refers to the dual-phase microstructure of this steel, which consists of roughly equal parts of austenite and ferrite. This combination imparts higher strength and toughness compared to conventional austenitic stainless steel.
Corrosion Resistance: Duplex Steel UNS S32750 exhibits exceptional resistance to various types of corrosion, including pitting, crevice corrosion, and stress corrosion cracking. This makes it suitable for use in aggressive environments, such as marine applications, chemical processing plants, and offshore oil and gas platforms.
Mechanical Properties: The mechanical properties of Duplex Steel UNS S32750 are superior to those of standard austenitic stainless steel. It has higher tensile and yield strength, making it suitable for applications where high mechanical performance is required.
Chloride Resistance: This steel grade has a high resistance to chloride-induced stress corrosion cracking, which is a common issue in environments with chloride-containing solutions.
Weldability: Although super duplex stainless steel can be more challenging to weld than austenitic stainless steel, Duplex Steel UNS S32750 is known for its good weldability. Proper welding techniques and filler materials are crucial to maintain the integrity of the welded joints.
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