DONGNAM KOREA

DongNamKorea

Product

Multi Core Tube

Multi core tube refers to the effective design, maintenance, and administration of numerous tubes used as transportation channels for liquids, gases, electricity, and other materials aboard ships, maritime facilities and structures. It is adjusted to reduce waste. Each tube is clad with polymer and marked every meter along its length for better identification and protection. The extruded outer sheath serves to protect the tubes from physical and chemical harm. DONGNAMKOREA Multi Core Tube is formed of high tensile string, also known as rip-cord, which helps to prevent safety accidents by cutting and saves workers' loads and time.

Product Applications

Shipbuilding, 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
Injection line

Structure Schematism

MCT NEW RIP-CORD

Heat-Shrinkable Boots

Union

4 Core

Bending radius approx.: 4 x outer dia.

1 Core

2 Core
Cross Section View

Filler (Synthetic Rubber)

Tube

PVC Rod

Outer Sheath

Coloured Identifying Sheath
Section Diagram
- 1 Core
- 2 Core
- 3 Core
- 4 Core
- 5 Core
- 6 Core
- 7 Core
- 8 Core
- 9 Core
- 10 Core
Rip-Cord
- Rip-cord is a high tensile string. You can Rip them up easily when you pull it out by a handy tool because it's inserted inside of multi core tube's filler continuously.
- It can save worker's load and time as it is much easier than the existing work.
- It avoid can prevent the safety accident by existing knife which is used for being Ripped outer sheath.
BEFORE

(Multi Core Tube)

AFTER

(RIP CORD in Multi Core Tube)

Specification

Item		Description	Remark
Tube	Core	1 - 10 tubes	Other options are available
	Thickness	Refer to coil tubing dimension	-
	Length	Welded tube : Average 100-550m Seamless tube : Depends on coil dimension	Seamless & Welded
	Material	Austenite Stainless steel, copper, copper alloy, etc.	-
	Grade	A213, A269, A789, B423, B165, etc.	-
Encapsulation	Material	Flame-Retardant / Halogen Free Material	Black
Encapsulation	Inner tube	PVC	Various color

Metric Size

Outside Diameter		Weight (kg/m)
		Stainless Steel				Copper
		Thickness(mm)				Thickness(mm)
O.D x Core	Overall Diameter (mm)	0.8	1	1.2	1.5	0.8	1	1.2
6x1	9	0.15	0.20	0.20	-	0.17	0.20	-
6x2	20	0.67	0.71	0.64	-	0.58	0.63	-
6x3	21	0.86	0.71	0.78	-	0.69	0.77	-
6x4	23	0.96	1.04	1.03	-	0.91	1.01	-
6x5	25	1.08	1.18	1.18	-	1.04	1.16	-
6x6	27	1.25	1.37	1.46	-	1.29	1.43	-
6x7	27	1.39	1.53	1.47	-	1.36	1.53	-
6x8	32	1.68	1.84	2.01	-	1.76	1.96	-
6x9	34	1.92	2.10	2.28	-	2.10	2.22	-
6x10	34	1.98	2.18	2.39	-	2.17	3.32	-
8x1	11	0.25	0.28	0.31	-	0.23	0.27	0.30
8x2	24	0.83	0.89	0.94	-	0.81	0.88	0.94
8x3	26	1.02	1.12	1.22	-	0.84	1.04	1.14
8x4	28	1.20	1.33	1.46	-	1.24	1.38	1.51
8x5	31	1.52	1.67	1.82	-	1.56	1.73	1.89
8x6	34	1.82	2.00	2.18	-	1.78	1.99	2.18
8x7	34	1.93	2.15	2.35	-	1.87	2.11	2.34
8x8	40	2.35	2.60	2.81	-	2.64	2.92	3.18
8x9	42	2.67	2.95	3.25	-	2.88	3.20	3.49
8x10	43	2.90	3.18	3.69	-	2.97	3.32	3.64
10x1	13	0.30	0.34	0.38	0.42	-	0.37	0.14
10x2	28	1.10	1.18	1.26	1.34	-	1.24	1.32
10x3	31	1.50	1.60	1.71	1.82	-	1.68	1.81
10x4	34	1.80	1.97	2.12	2.27	-	2.09	2.26
10x5	37	2.00	2.20	2.39	2.58	-	2.33	2.55
10x6	40	2.15	2.40	2.71	3.02	-	2.57	2.83
10x7	40	2.28	2.52	2.70	2.88	-	2.80	3.10
10x8	48	2.95	3.20	3.42	3.64	-	3.60	3.95
10x9	51	3.30	3.80	4.25	4.70	-	4.15	4.54
10x10	51	3.65	4.40	5.08	5.76	-	4.70	5.13
12x1	15	0.36	0.41	0.46	-	-	0.39	0.45
12x2	34	1.32	1.38	1.44	-	-	1.44	-
12x3	36	1.81	1.96	2.11	-	-	-	1.50
12x4	39	2.13	2.37	2.61	-	-	2.51	-
12x5	43	2.44	2.70	2.96	-	-	-	2.78
12x6	47	2.70	3.00	3.30	-	-	-	-
15x1	18	0.47	0.49	0.56	-	-	0.51	0.59

Imperial Size

Outside Diameter		Weight (kg/m)
		Stainless Steel			Copper
		Thickness (in)			Thickness (in)
O.D x Core	Overall Diameter (mm)	0.035"	0.049"	0.65"	0.035"	0.049"
1/4”x1	9	0.17	0.21	0.24	0.19	0.23
1/4”x2	21	0.75	0.83	0.90	0.78	0.87
1/4”x3	22	1.00	1.12	1.04	1.04	1.18
1/4”x4	25	1.10	1.28	1.43	1.16	1.34
1/4”x5	26	1.20	1.40	1.59	1.2	1.50
1/4”x6	29	1.40	1.64	1.87	1.49	1.76
1/4”x7	29	1.50	1.76	2.03	1.57	1.85
1/4”x8	34	1.94	2.24	2.55	2.02	2.34
1/4”x9	36	2.22	2.56	2.91	2.31	2.67
1/4”x10	36	2.29	2.67	3.06	2.39	2.79
3/8”x1	13	0.28	0.35	0.41	0.31	0.38
3/8”x2	28	1.14	1.27	1.40	1.18	1.33
3/8”x3	29	1.55	1.75	1.69	1.62	1.84
3/8”x4	32	1.90	2.16	2.12	1.99	2.28
3/8”x5	36	2.15	2.48	2.66	2.26	2.63
3/8”x6	39	2.35	2.74	3.14	2.47	2.86
3/8”x7	39	2.42	2.87	3.34	2.58	3.09
3/8”x8	47	3.09	3.62	4.38	3.25	3.81
3/8”x9	50	3.52	4.12	4.92	3.70	4.33
3/8”x10	50	3.57	4.24	5.21	3.77	4.47
1/2”x1	16	-	0.47	0.57	-	0.51
1/2”x2	35	-	1.49	2.04	-	0.88
1/2”x3	41	-	1.94	2.91	-	2.06
1/2”x4	42	-	2.70	3.23	-	2.85
1/2”x5	47	-	2.92	4.00	-	3.12
1/2”x6	51	-	3.97	4.74	-	4.21

Maximum Allowable Working Pressure

Stainless Steel Seamless Tube

(Unit:bar)
O.D(mm)	Wall Thickness(mm)
O.D(mm)	0.8	1.0	1.2	1.5	2.0
6	330	430	520	-	-
8	240	310	380	-	-
10	190	240	300	380	530
12	160	200	245	315	430
15	-	160	190	245	335

(Unit:bar)
O.D (in)	Wall Thickness(in)
O.D (in)	0.035	0.049	0.065
1/4	363	535	-
3/8	232	336	-
1/2	171	245	334

Stainless Steel Welded Tube

(Unit:bar)
O.D(mm)	Wall Thickness(mm)
O.D(mm)	0.8	1.0	1.2	1.5	2.0
6	260	340	430	-	-
8	195	245	305	-	-
10	155	195	235	305	425
12	160	200	245	310	430
15	-	125	155	195	270

(Unit:bar)
O.D(in)	Wall Thickness(in)
O.D(in)	0.035	0.049	0.065
1/4	290	428	-
3/8	186	269	-
1/2	137	196	267

Copper Tube

(Unit:bar)
O.D(mm)	Wall Thickness(mm)
O.D(mm)	0.8	1.0	1.2
6	105	140	175
8	75	100	125
10	60	80	100
12	160	200	245
15	-	125	155

Mechanical Properties

Grade	UNS	Yield Strength (N/mm²)	Tensile Strength (N/mm²)	Elongation (%)	Rockwell Hardness (N/mm²)
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 Specification

Specification
A213, A269, A789, B423, B163, B165, etc.
Material
Austenite stainless steel, Nickel alloy, Copper / Copper alloy, etc.
Length
Welded tube: Approximately 100~550m

Seamless tube: Refer to Seamless tube length table

Orbital tube welding available

Standard

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

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DongNamKorea

DongNamKorea

Multi Core Tube

Structure Schematism

Cross Section View

Section Diagram

Rip-Cord

Product Specification