Super Duplex Stainless Steel Tube 2507 Seamless Steel Pipe for Desalination Plants

Material Overview

The Super Duplex Stainless Steel Tube 2507, identified by UNS S32750, is a high-performance alloy engineered for extreme corrosion resistance and mechanical strength. Its unique microstructure—approximately 50% austenitic and 50% ferritic—combines the best properties of both phases, resulting in exceptional resistance to stress corrosion cracking, pitting, and crevice corrosion, especially in chloride-rich environments. This makes it particularly suitable for demanding applications such as desalination plants, offshore oil and gas platforms, and chemical processing industries.

Specifications

• Standards: ASTM A790 / ASME SA790

• Grades: UNS S32750, SAF 2507, EN 1.4410

• Forms Available: Seamless and Welded Pipes

• Sizes: Outer Diameter (OD): 4 mm to 219 mm; Wall Thickness: 0.5 mm to 20 mm

• Lengths: Single Random, Double Random, or Cut Lengths

• Finishes: Annealed, Pickled, Bright Annealed, Mechanical Polish, Mirror Finish

The chemical composition of Super Duplex Stainless Steel Tube 2507 is as follows:

Mechanical Properties

The mechanical properties of Super Duplex Stainless Steel Tube 2507 are as follows:

These properties ensure the alloy's suitability for high-strength applications requiring resistance to various forms of corrosion.

Main Features

• High Resistance to Chloride Stress Corrosion Cracking: Ideal for environments with high chloride concentrations.

• Superior Resistance to Pitting and Crevice Corrosion: Enhanced durability in aggressive chemical environments.

• Excellent General Corrosion Resistance: Provides long-term reliability in various industrial applications.

• High Strength: Offers mechanical properties comparable to higher-alloyed materials, allowing for thinner sections and reduced weight.

• Good Weldability and Workability: Facilitates ease of fabrication and installation.

• Low Thermal Expansion: Minimizes thermal stresses during temperature fluctuations.

• Resistance to Erosion and Corrosion Fatigue: Ensures longevity in dynamic and abrasive conditions.

Applicable Standards

• ASTM: A790, A815, A182, A240, A276, A789

• ASME: SA790, SA815, SA182, SA240, SA276, SA789

• EN: 1.4410

• UNS: S32750

• Other Standards: GOST, JIS, GB (specific standards may apply depending on regional requirements)

Applications

Super Duplex Stainless Steel Tube 2507 is widely used in industries where high strength and corrosion resistance are critical:

• Desalination Plants: Used in heat exchangers, piping systems, and seawater intake structures due to its resistance to seawater corrosion.

• Offshore Oil and Gas Platforms: Employed in risers, manifolds, and subsea equipment exposed to harsh marine environments.

• Chemical Processing: Utilized in reactors, pressure vessels, and piping systems handling aggressive chemicals.

• Marine Applications: Applied in shipbuilding and offshore structures requiring materials resistant to seawater corrosion.

• Flue Gas Scrubbing Equipment: Used in systems designed to remove pollutants from exhaust gases.

• Pulp and Paper Industry: Employed in digesters, bleaching towers, and other equipment exposed to corrosive chemicals.

• Offshore Oil Production/Technology: Utilized in various components subjected to corrosive offshore conditions.

• Oil and Gas Industry Equipment: Applied in valves, pumps, and other equipment requiring high strength and corrosion resistance.

Q: Are you trading company or manufacturer ?

A: manufacturer,also can do trading.

Q: How long is your delivery time?

A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock,

it is according to quantity.

Q: Do you provide samples? is it free or extra ?

A: Yes, we could offer the sample for free charge but need pay the cost of freight.

Q: What is your terms of payment ?

A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.

If you have another question, pls feel free to contact with me.