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Incoloy 825 Control Line

Product introduction

Improving technology has extended the range of ways in which oil and gas fields can be exploited, and increasingly projects require the use of long, continuous lengths of stainless steel control lines. These are employed in a variety of applications including hydraulic controls, instrumentation, chemical injection, umbilicals and flowline control. Meilong Tube supplies products for all of these applications, and more, lowering operating costs and improved recovery methods for our customers.

Alloy Feature

Incoloy alloy 825 is a nickel-iron-chromium alloy with additions of molybdenum and copper. This nickel steel alloy’s chemical composition is designed to provide exceptional resistance to many corrosive environments. It is similar to alloy 800 but has improved resistance to aqueous corrosion. It has excellent resistance to both reducing and oxidizing acids, to stress-corrosion cracking, and to localized attack such as pitting and crevice corrosion. Alloy 825 is especially resistant to sulfuric and phosphoric acids. This nickel steel alloy is used for chemical processing, pollution-control equipment, oil and gas well piping, nuclear fuel reprocessing, acid production, and pickling equipment.

Product Display

Alloy Materials

Austenitic: 316L ASTM A-269
Duplex: S31803/S32205  ASTM A-789
S32750 ASTM A-789
Nickel alloy: N08825 ASTM B-704; ASTM B-423
N06625 ASTM B-704; ASTM B-444
CuNi alloy Monel 400 ASTM B-730; ASTM B-165

Application

Capillary coiled alloy tubing for chemical injection.

Bare and encapsulated hydraulic control line coiled alloy tubing for subsea safety valves.

Velocity strings, work strings, and steel tube umbilicals.

Geothermal coiled alloy tubing.


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