Inconel 625 Capillary Tube 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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Typical Tubing Size

Outside diameter of control lines is mainly 3/8’’ (9.53mm).

Wall thicknesses: 0.035’’ (0.89mm), 0.049’’ (1.24mm), 0.065’’ (1.65mm), 0.083’’ (2.11mm)

Injection 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.

Imperial size		Metric size
OD inch	WT inch	OD mm	WT mm
1/8 (0.125)	0.028	3.18	0.71
1/8 (0.125)	0.035	3.18	0.89
3/16 (0.188)	0.028	4.76	0.71
	0.035	4.76	0.89
	0.049	4.76	1.24
1/4 (0.250)	0.035	6.35	0.89
	0.049	6.35	1.24
	0.065	6.35	1.65
	0.083	6.35	2.11
3/8 (0.375)	0.035	9.53	0.89
	0.049	9.53	1.24
	0.065	9.53	1.65
	0.083	9.53	2.11
1/2 (0.500)	0.035	12.7	0.89
	0.049	12.7	1.24
	0.065	12.7	1.65
	0.083	12.7	2.11

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Inconel 625 Capillary Tube Chemical Injection Line (2)

Inconel 625 Capillary Tube Chemical Injection Line (3)

Technical Datasheet

Alloy	O.D.	W.T.	Yield Strength	Tensile Strength	Elongation	Hardness	Working Pressure	Burst Pressure	Collapse Pressure
	inch	inch	Mpa	Mpa	%	HV	psi	psi	psi
			min.	min.	min.	max.	min.	min.	min.
Inconel 625	0.375	0.035	414	827	30	266	8,426	26,930	11,200
Inconel 625	0.375	0.049	414	827	30	266	12,096	38,657	14,966
Inconel 625	0.375	0.065	414	827	30	266	16,583	53,000	18,922
Inconel 625	0.375	0.083	414	827	30	266	21,560	68,896	22,916

Dimensional Tolerance

ASTM B704 / ASME SB704, Inconel 625, UNS N06625
ASTM B751 / ASME SB751
Size OD	Tolerance OD	Tolerance WT
1/8’’≤OD<5/8’’ (3.18≤OD<15.88 mm)	±0.004’’ (±0.10 mm)	±12.5%
5/8≤OD≤1’’ (15.88≤OD≤25.4 mm)	±0.0075’’ (±0.19 mm)	±12.5%

Meilong Standard
Size OD	Tolerance OD	Tolerance WT
1/8’’≤OD<5/8’’ (3.18≤OD<15.88 mm)	±0.004’’ (±0.10 mm)	±10%
5/8≤OD≤1’’ (15.88≤OD≤25.4 mm)	±0.004’’ (±0.10 mm)	±8%

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%