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Seamless Coil Tube


Specific Applications

▪ Hydraulic Power
▪ Single Transmission
▪ Monitoring and Control Equipment
▪ Injection Line
▪ Down-Hole Safety Valve Control
Our coiled seamless tubing is available in a number of high performance corrosion resistant stainless steel and high nickel alloys, including the 300 series Monel, Inconel, and Hastelloy, capable of withstanding a variety of severe environmental conditions.
We specialize in manufacturing small diameter tubing ranging and variety of wall thicknesses. We can supply coiled seamless tubing in loose bulk wound coils, or level wound on various size reels.

Seamless Control line tubing

Our Seamless control line tubing is drawn from seamless extruded tube hollows supplied by leading primary manufacturers to ensure absolute product safety and reliability. Our seamless control line tubing is one continuous length of tubing, completely free of any welded joints or seams. Long length coils reduce installation time and costs by eliminating the need for excessive joint preparation and fittings. Elimination of excessive fittings increases reliability and assures a leak-free system. We are capable of 100% hydro-testing each coil.


● Corrosion Resistant Material Selection
Alloy PREN Density Application Alloy
g/㎤ lb/㎤
304 21 7.93 0.29 General good corrosion resistance grade
304L 21 7.93 0.29 Lower carbon than 304 impedes carbide precipitates in heat affected zone giving good weld ability. Reduced carbides also lowers susceptibility to intergranular corrosion
316 24 7.98 0.29 Alloyed with molybdenum which improves corrosion resistance in marine environments, chlorides, and biofouling. Excellent pitting corrosion resistance.
316L 24 7.98 0.29 Carbon content restricted, which impedes carbide precipitates in heat affected zone giving good weld ability. Reduced carbides also lowers susceptibility to intergranular corrosion

Seamless Straight Tube


● Technical Data
PRODUCT GRADE AVAILABLE SIZE REMARK
DIAMETER THICKNESS LENGTH
STRAIGHT TUBES AUSTENITE
( 304, 304L, 316, 316L )
6 to 25.4mm
(1/4” ~1” )
0.8 to 2.11mm 4m,6m Coiled tubes
Upon request
● Chemical composition & Mechanical Property of Stainless Steel
Code Standard Chemical Composition
Steel Grade C(max) Si(max) Mn(max) P(max) S(max) Ni(max) Cr(max) Mo(max)
304 ASTM TP 304 0.080 1.0 2.00 0.045 0.030 8.00-11.00 18.00-20.00  
JIS SUS 304 0.080 1.00 2.00 0.040 0.030 8.00-11.00 18.00-20.00  
DIN 1.4301 0.070 1.00 2.00 0.045 0.030 8.50-10.05 18.00-20.00  
AISI 304 0.080 1.00 2.00 0.045 0.030 8.00-10.50 17.00-20.00  
304L ASTM TP 304L 0.035 1.0 2.00 0.045 0.030 8.00-12.00 18.00-20.00  
JIS SUS 304L 0.030 1.00 2.00 0.040 0.030 9.00-13.00 18.00-20.00  
DIN 1.4306 0.030 1.00 2.00 0.045 0.030 10.00-12.50 18.00-20.00  
AISI 304L 0.030 1.00 2.00 0.045 0.030 10.00~12.50 18.00~20.00  
316 ASTM TP 316 0.08 1.0 2.00 0.045 0.030 11.00-14.00 16.00-18.00 2.00-3.00
JIS SUS 316 0.08 1.00 2.00 0.040 0.030 10.00-14.00 16.00-18.00 2.00-3.00
DIN 1.4401 0.070 1.00 2.00 0.045 0.030 10.50~13.50 16.50~18.50 2.00-2.50
AISI 316 0.08 1.00 2.00 0.045 0.030 10.00-14.00 16.00-18.00 2.00-3.00
316L ASTM TP 316L 0.035 1.0 2.00 0.045 0.030 10.00-15.00 16.0-18.0 2.00-3.00
JIS SUS 316L 0.030 1.00 2.00 0.040 0.030 12.00~16.00 16.00-18.00 2.00-3.00
DIN 1.4404 0.030 1.00 2.00 0.045 0.030 11.00-14.00 16.50-18.50 2.00-2.50
AISI 316L 0.030 1.00 2.00 0.045 0.030 10.00-14.00 16.00-18.00 2.00-3.00

● Mechanical Properties
Grade UNS Yield Strength
(N/mm²)
Tensile Strength
(N/mm²)
Elongation
(%)
Rockwell Hardness
(Scale)
TP 304 S30400 min 205 min 515 min 35 Max. 90
TP 304L S30403 min 170 min 485 min 35 Max. 90
TP 316 S31600 min 205 min 485 min 35 Max. 90
TP 316L S31603 min 175 min 485 min 35 Max. 90


Product Application

- Oil, Gas, Petrochemical, Desalination, Fertilizer & Chemical Industries
- Control & Instrumentation Industry (C&I)
- Process & Power Plants
- Valve Remote Control (VRC) Line System
- Deck Machinery Remote Control Line System
- Fixed Gas Detection Sensing Line
- Heat Tracing Line
- Pressure Sensing Line
- Sampling & Drain Line
- Tank Level & Draft Gauging System Line
- Fire Fighting System Control Line


Product Specification

▪ Tube Specification
- ASTM A213, A269, A312, JIS G3459
▪ TUBE MATERIAL
- Austenite stainless steel, Copper / Copper alloy
▪ SHEATH MATERIAL
- Flame-retardant PVC / TPU / PE

▪ Tube length (Standard length)
- Basic Length unit 4~6meter
- Other pipe & tubes are also available upon request
▪ Coil length (Standard length)
- About 550m per wooden reel
- Longer length is available on special request



● Standard
Grade ASTM (UNS) Standard O.D
Inch (mm)
W.T(%)
304 / 304L S30400 / S30403 ASTM A269, ASTM A213 ±0.005 [0.13] ±10%
316 / 316L S31600 / S31603 ASTM A269, ASTM A213 ±0.005 [0.13] ±10%

Seamless Coil Tube


● Weight and length Per Coil
Imperial Size Metric Size
O.D(in) W.T(in) L(ft) Weight(lb) O.D(mm) W.T(mm) L(m) Weight(kg)
1/4 0.035 2,693 220~260 6.35 0.90 821 100~120
0.049 2,065 1.25 630
3/8 0.035 1,702 9.53 0.90 519
0.049 1,273 1.25 388
1/2 0.035 1,245 12.70 0.90 379
0.049 921 1.25 281
3/4 0.049 593 19.05 1.25 181
0.065 456 1.65 139
1 0.049 437 25.40 1.25 133
0.065 334 1.65 102


Seamless Straight Tube

● TUBE <ASTM A213/269>
Outside Diameter Wall Thickness Weight Working pressure(bar)
Temperature( ℃ )
Working
Pressure(bar)
inch mm inch mm kg/m 20℃ 100℃ 200℃ 300℃ 400℃
1/4 6.35 0.035 0.90 0.122 309 242 203 182 167 309
1/4 6.35 0.049 1.25 0.159 496 389 326 292 269 496
3/8 9.53 0.035 0.90 0.193 198 155 130 117 107 198
3/8 9.53 0.049 1.25 0.257 310 243 204 183 166 310
1/2 12.70 0.035 0.90 0.263 146 114 96 86 79 156
1/2 12.70 0.049 1.25 0.356 226 177 149 133 122 218
1/2 12.70 0.065 1.65 0.456 327 256 215 192 177 291
5/8 15.88 0.049 1.25 0.454 178 139 117 105 96 146
3/4 19.05 0.049 1.25 0.553 146 115 96 86 79 209
3/4 19.05 0.065 1.65 0.720 209 164 137 123 113 150
1 25.40 0.065 1.65 0.982 153 120 101 90 83 205
1 25.40 0.085 2.11 1.232 205 161 135 121 111 124

Basic length unit is 4,6 meter. Other Tubes are also available upon request



● Technical Data
PRODUCT GRADE AVAILABLE SIZE REMARK
DIAMETER THICKNESS LENGTH
STRAIGHT TUBES AUSTENITE
( 304, 304L, 316, 316L )
6 to 25.4mm
(1/4” ~1” )
0.8 to 2.11mm 4m,6m Coiled tubes
Upon request