Super Duplex 2507 Pipe

Introduction

Super Duplex 2507 Pipe is a high-performance duplex stainless steel pipe, primarily composed of austenite and ferrite two-phase structures. It exhibits excellent corrosion resistance and high-strength properties. This pipe is mainly used in fields with high corrosiveness and high strength requirements, such as the chemical industry, oil and gas, marine engineering, and food processing.

Excellent corrosion resistance

The high content of chromium, nickel, and molybdenum elements in the Super Duplex 2507 Pipe forms a dense chromium oxide protective film on the surface of the pipe, which effectively resists the erosion of corrosive media such as chloride, sulfuric acid, and phosphoric acid. In an environment containing 2000ppm chloride ions, the corrosion curve of Super Duplex 2507 Pipe is only 0.1mm/year, which is significantly better than ordinary steel.

High thermal conductivity

Thanks to the uniform distribution of alloy elements and the optimization of the dual-phase structure of Super Duplex 2507 Pipe, the thermal conductivity of Super Duplex 2507 Pipe is very high, about 14.5 W/m·K. Under the same temperature gradient, the heat conductivity of Super Duplex 2507 Pipe is The speed of transfer is faster, helping to reduce energy loss.

Low thermal expansion

By precisely controlling the ratio of austenite to ferrite, the overall thermal expansion rate of the Super Duplex 2507 Pipe is reduced. Its linear expansion coefficient is approximately 13.7×10^-6/℃, which is much lower than some other stainless steel materials. Super Duplex 2507 Pipe maintains a relatively stable size when subjected to temperature variations, which minimizes thermal expansion and contraction, thereby reducing stress and deformation.

To meet the needs of different customers, Super Duplex 2507 Pipe offers a variety of customization options:

1. Length and thickness: The length can be customized according to customer requirements, ranging from 1-12 meters; the thickness can also be selected between 0.5-50 mm according to needs.

2. Surface state: Provides various surface states such as bright, semi-bright, sandblasted, etc. to meet different application scenarios and aesthetic needs.

1. Polishing: Polishing improves the smoothness and brightness of the Super Duplex 2507 Pipe surface, thereby enhancing its corrosion resistance and aesthetics.

2. Sandblasting: Sandblasting increases the roughness of the Super Duplex 2507 Pipe surface, improves its adhesion to coatings or paints, and also helps remove surface dirt and oxide layers.

Super Duplex 2507 is often manufactured in accordance with various international standards, such as ASTM A790 and ASME SA790.

Chromium: ~25%

Nickel: ~4%

Molybdenum: ~7%

Iron: Balance

Nitrogen: Adds to strength and corrosion resistance.

Oil and Gas: Used in offshore platforms, pipelines, and other critical components.

Marine: Ideal for components exposed to seawater and corrosive conditions.

Chemical Processing: Employed in reactors, heat exchangers, and storage tanks due to their durability.