Straight Tube

Welded Straight Tube

Product Features

Welded tubes to precise specifications through the Welding - Cold drawing -BA heat treatment process. These procedures dramatically overcome weakness of weld beads and makes it possible to produce precision tubes for a variety of demanding applications.

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

  • Steel Grade

  • Standard Spec

  • Size & Length Detail

Chemical composition & Mechanical Property of Stainless Steel

Code Standard Chemical
Steel
Grade		 C
(max)		 Si
(max)		 Mn
(max)		 P
(max)		 S
(max)		 Ni
(max)		 Cr
(max)		 Mo
(max)
304 ASTM TP 304 0.080 1.00 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 1.00 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 1.00 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 1.00 2.00 0.045 0.030 10.00-
15.00		 16.00-
18.00		 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 175 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
    A789, B423, B163, B165 etc.

  • TUBE MATERIAL

    - Austenitic stainless steel

  • SHEATH MATERIAL

    - Flame-retardant PVC / TPU / PE

  • Pipe & 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

< ASTM A269 A213 >
Grade ASTM (UNS) Standard O.D
In.(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%

Welded 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

Welded 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