Inconel 625 Capillary Tubing Chemical Injection Line

Short Description:

Unique manufacturing capabilities and processes allow Meilong Tube to produce the longest continuous chemical injection line tubing available in stainless steels and high nickel alloys. Our long length tubing coils are used extensively for chemical injection in subsea and onshore wells. The length without orbital welds which reduces the potential for defects and failures. Additionally, our coils have an extremely clean and smooth inside surface that is ideal for chemical injection systems. The coils offer short hydraulic response time, greater collapse strength, and elimination of methanol permeation.

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Tubing Process and Packing

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

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

Packing: 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.

Product Display

Inconel 625 Capillary Tubing Chemical Injection Line (2)

Inconel 625 Capillary Tubing Chemical Injection Line (3)

Tubing Features

Close dimensional tolerances

Considerably enhanced mechanical properties

Superior surface finish

High cleanness of inside surface

Controlled ovality, eccentricity

Testing Abilities

Chemical	Flare	Metallurgical
Corrosion	Flatten	Positive material identification (PMI)
Dimensional	Grain size	Surface roughness
Eddy current	Hardness	Tensile
Elongation	Hydrostatic	Yield

Chemical Composition

Nickel	Chromium	Iron	Molybdenum	Columbium + Tantalum	Carbon	Manganese	Silicon	Phosphorus	Sulfur	Aluminum	Titanium	Cobalt
%	%	%	%	%	%	%	%	%	%	%	%	%
min.		max.			max.	max.	max.	max.	max.	max.	max.	max.
58.0	20.0-23.0	5.0	8.0-10.0	3.15-4.15	0.10	0.50	0.5	0.015	0.015	0.4	0.40	1.0

Norm Equivalence
Grade	UNS No	Euro norm
Grade	UNS No	No	Name
Alloy	ASTM/ASME	EN10216-5	EN10216-5
625	N06625	2.4856	NiCr22Mo9Nb

Dimensional Tolerance

ASTM B444 / ASME SB444, Inconel 625, UNS N06625
Size OD	Tolerance OD	Tolerance WT
1/8’’ ≤OD<3/16’’ (3.18≤OD<4.76 mm)	+0.003’’ (+0.08 mm) / -0	±10%
3/16≤OD<1/2’’ (4.76≤OD<12.7 mm)	+0.004’’ (+0.10 mm) / -0	±10%
3/16≤OD<1/2’’ (4.76≤OD<12.7 mm)	+0.005’’ (+0.13 mm) / -0	±10%

Meilong Standard
Size OD	Tolerance OD	Tolerance WT
1/8’’ ≤OD<3/16’’ (3.18≤OD<4.76 mm)	+0.003’’ (+0.08 mm) / -0	±10%
3/16≤OD<1/2’’ (4.76≤OD<12.7 mm)	+0.004’’ (+0.10 mm) / -0	±10%
1/2’’≤OD≤1’’ (12.7≤OD≤25.4 mm)	+0.004’’ (+0.10 mm) / -0	±8%