Super Duplex 2507 Chemical Injection Line Tubing

Short Description:

A small-diameter conduit that is run alongside production tubulars to enable injection of inhibitors or similar treatments during production. Conditions such as high hydrogen sulfide [H2S] concentrations or severe scale deposition can be counteracted by injection of treatment chemicals and inhibitors during production.

Product Detail

Product Tags

Product introduction

One of the main challenges in the upstream processes of the oil and gas industry is to protect pipeline and process equipment against waxes, scaling and asphalthane deposits. The engineering disciplines involved in flow assurance play an essential part in mapping the requirements that reduce or prevent loss of production due to pipeline or process equipment blockage. Coiled tubing from Meilong Tube is applied to umbilicals and chemical injection systems play an effective role in chemical storage and delivery at an optimizing flow assurance.

Our tubing is characterized with integrity and quality to be specially used in subsea conditions in the industries of oil and gas extraction.

A general term for injection processes that use special chemical solutions to improve oil recovery, remove formation damage, clean blocked perforations or formation layers, reduce or inhibit corrosion, upgrade crude oil, or address crude oil flow-assurance issues. Injection can be administered continuously, in batches, in injection wells, or at times in production wells.

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Super Duplex 2507 Chemical Injection Line Tube (1)
Super Duplex 2507 Chemical Injection Line Tube (2)

Alloy Feature


High resistance to chloride stress corrosion cracking.
High Strength.
Superior resistance to chloride pitting and crevice corrosion.
Good general corrosion resistance.
Suggested for applications up to 600° F.
Low rate of thermal expansion.
Combination of properties given by austenitic and ferritic structure.
Good weldability and workability.


Desalination Equipment.
Chemical process pressure vessels, piping and heat exchangers.
Marine Applications.
Flue Gas Scrubbing Equipment.
Pulp & Paper Mill Equipment.
Offshore Oil production/technology.
Oil and gas industry equipment.

Dimensional Tolerance

ASTM A789 / ASME SA789, Super Duplex 2507, UNS S32750
Size OD Tolerance OD Tolerance WT
<1/2’’ (<12.7 mm) ±0.005’’ (±0.13 mm) ±15%
1/2’’ ≤OD≤1’’ (12.7≤OD≤25.4 mm) ±0.005’’ (±0.13 mm) ±10%
Meilong Standard
Size OD Tolerance OD Tolerance WT
<1/2’’ (<12.7 mm) ±0.004’’ (±0.10 mm) ±10%
1/2’’ ≤OD≤1’’ (12.7≤OD≤25.4 mm) ±0.004’’ (±0.10 mm) ±8%

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