Capillary SS Hydraulic Tubing 0.035in 0.89mm Hydraulic Control Line Incoloy 825

Enhanced mechanical properties capillary tubing hydraulic line made from Incoloy 825

Meilong Tube specially manufactures seamless and redrawn, welded and redrawn coiled tubing hydraulic line which are made from corrosion-resistant austenitic, duplex, super duplex stainless steels and nickel alloy grades. The tubing is used as hydraulic control lines and chemical injection lines specially serving oil and gas, geothermal industry.

Typical size of Hydraulic Line

Outside diameter of control lines is mainly 1/4’’ (6.35mm).

Wall thicknesses: 0.035’’ (0.89mm), 0.049’’ (1.24mm), 0.065’’ (1.65mm)

Control line tubing is available in lengths from 400 feet (122 meters) to 32,808 feet (10,000 meters). No orbitally butt welds.

Other specifications (1/8’’ to 3/4’’) are available on request.

Importance of Hydraulic Line

Each one tubing coil is a completely continuous length without orbital welds.

Each one hydraulic line in form of tubing coil is hydrostatic tested at minimum 15,000 psi.

The test can be witnessed on site by the third party inspectors (SGS, BV, DNV).

Other tests are eddy current test, chemicals, flattening, flaring, tensile, yield, elongation, hardness for the material quality.

Application Description for Hydraulic Line

In all fields of the oil and gas industry, chemicals are injected into process lines and fluids. Take oilfield services, chemicals are used to film the side of the wellbore for improved stability. In pipelines they avoid build-up and keep the infrastructure healthy.

The Usage of Hydraulic Line

In the oil and gas industry we inject chemicals in order

to protect the infrastructure

to optimize processes

to assure flow

and to improve productivity

Alloy Materials for Hydraulic Line

Hydraulic Line Tubing Features

Close dimensional tolerances

Considerably enhanced mechanical properties

Superior surface finish

High cleanness of inside surface

Controlled ovality, eccentricity

Incoloy 825 for Hydraulic Line

Norm Equivalence

Incoloy 825 Material Description

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.

Characteristics

Excellent resistance to reducing and oxidizing acids

Good resistance to stress-corrosion cracking

Satisfactory resistance to localized attack like pitting and crevice corrosion

Very resistant to sulfuric and phosphoric acids

Good mechanical properties at both room and elevated temperatures up to approximately 1020° F

Permission for pressure-vessel use at wall temperatures up to 800°F

Alloy Tubing Weight per Meter (kg)

Incoloy 825 (UNS N08825)

Alloy Tubing Properties

Seam-welded & floating internal plug redrawn tubing. Supplied in the annealed condition

Continuous length without orbital joint welds

* Theoretical burst pressure based on minimum wall thickness, and minimum tensile strength

* Theoretical collapse pressure based on minimum wall thickness, and minimum yield strength

* Pressure rating at 100°F (38°C), neutral and static conditions

Tubing Process and Packing

Seamless- pierced, redrawn, annealed (multi-pass circulation process)

Welded- longitudinally welded, redrawn, annealed (multi-pass circulation process)

Packing- Hydraulic Line Tubing is level wound coiled on the metal / wooden drums or spools.

All drums or spools are packed in wooden crates for easy logistic operation.