Difference between Stainless Steel Spiral Welded Pipe, ERW, SAW, and EFW
A stainless steel spiral welded pipe is produced as coils of steel that are flattened after unwinding. Angled rollers are utilized to flatten a spiral welded stainless steel pipe. These pipes can be classified into the 3 common specifications, namely ERW, SAW, and EFW.
The Stainless Steel ERW Pipe is a specification that is produced as the material is cold rolled and welded longitudinally. The versatile SS ERW pipe makes use of low voltage current to melt and weld the pipe.
A Stainless steel Efw Pipe has the same forming and production capabilities as ERW pipes. However, they make use of high voltage current to weld the material. The efw stainless steel pipe is an excellent choice for welding it with dissimilar piping systems.
A SAW pipe is produced as an arc is created between the workpiece and the continuously fed electrodes. The SAW stainless steel spiral pipe is protected against weld contamination using a protective gas shield. This allows it to weld material with higher thicknesses.
SS ERW Pipe Specification
Specifications |
ASTM A312, ASTM A269, ASME SB677, ASTM A213, ASME SA 789/ASTM A789. ASME SA 790/ASTM A790 |
Size |
- Ferritic Stainless Steel grade EFW Pipes : 6″ NB to 100″ NB
- Martensitic Stainless Steel Welded Pipes : 1/2″ NB to 24″ NB
- Austenitic Stainless Steel ERW Pipes : 1/2″ NB to 16″ NB
- Super Austenitic Stainless Steel Pipes : 1/8″NB to 30″NB IN
|
Finish |
No.4 finish, No.1 Pickled Finish, Electropolished, BA Finish Welded Pipes |
Form |
Round, Square, Rectangular, Hydraulic Etc |
Type |
ERW / Welded / EFW /Spiral Pipes |
Dimensions |
ASME, ASTM and API |
Length |
Double Random , Single Random & Cut to sizw |
End |
Beveled End, Plain End, Treaded |
Thickness |
single slit (0.5mm – 25mm); girth (3mm – 45mm) |
Name of Product |
Standard Executive |
Dimension |
Large Diameter Pipes |
JIS G3468 |
WT: SCH5S~SCH40S
OD: 14″~40″ |
Industrial Pipes |
ASTM A778, A358, A312, JIS G3459 |
WT: SCH5S~SCH80S
OD: 1/4″~40″ |
for Ordinary Piping Large Gauge Pipes |
JIS G3448 |
WT: 0.8~3.0mm
OD: 15.88~318.5mm |
Reasonably expect fair prices of A312 Welded Pipe and Stainless Steel ERW Pipe from different suppliers in Dubai, check SS Welded Pipe price per meter in UAE
Stainless Steel Welded Pipe Price
Grade 304
Nominal Bore |
Schedule-5S |
Outside Diameter |
Price per Kg in USD |
Rates |
Schedule-40S |
Price per Kg in USD |
Schedule-10S |
Price per Kg in USD |
mm |
INCH |
Weight (Kg/mt) |
Wt mm |
mm |
USD / Kg |
Rs/Kg |
Weight (Kg/mt) |
Wt mm |
USD / Kg |
Weight (Kg/mt) |
Wt mm |
USD / Kg |
20 |
3/4 |
1.03 |
1.65 |
26.7 |
3.28 |
270 |
1.68 |
2.87 |
3.28 |
1.28 |
2.11 |
3.28 |
6 |
1/4 |
0.390 |
1.24 |
13.7 |
3.64 |
300 |
0.631 |
2.24 |
3.64 |
0.49 |
1.65 |
3.64 |
10 |
3/8 |
0.490 |
1.24 |
17.1 |
3.64 |
300 |
0.845 |
2.31 |
3.64 |
0.63 |
1.65 |
3.64 |
3 |
1/8 |
0.276 |
1.24 |
10.3 |
4.25 |
350 |
0.37 |
1.73 |
4.25 |
0.28 |
1.24 |
4.25 |
50 |
2 |
2.40 |
1.65 |
60.3 |
3.28 |
270 |
5.44 |
3.91 |
3.28 |
3.93 |
2.77 |
3.28 |
25 |
1 |
1.30 |
1.65 |
33.4 |
3.15 |
260 |
2.50 |
3.38 |
3.15 |
2.09 |
2.77 |
3.15 |
32 |
1 1/4 |
1.65 |
1.65 |
42.2 |
3.15 |
260 |
3.38 |
3.56 |
3.15 |
2.70 |
2.77 |
3.15 |
200 |
8 |
14.79 |
2.77 |
219.1 |
3.64 |
300 |
42.6 |
8.18 |
3.64 |
19.96 |
3.76 |
3.64 |
15 |
1/2 |
0.800 |
1.65 |
21.3 |
3.64 |
300 |
1.27 |
2.77 |
3.64 |
1.00 |
2.11 |
3.64 |
40 |
1 1/2 |
1.91 |
1.65 |
48.3 |
3.28 |
270 |
4.05 |
3.68 |
3.28 |
3.11 |
2.77 |
3.28 |
80 |
3 |
4.51 |
2.11 |
88.9 |
3.28 |
270 |
11.30 |
5.49 |
3.28 |
6.45 |
3.05 |
3.28 |
65 |
2 1/2 |
3.69 |
2.11 |
73.0 |
3.28 |
270 |
8.63 |
5.16 |
3.28 |
5.26 |
3.05 |
3.28 |
100 |
4 |
5.84 |
2.11 |
114.3 |
3.28 |
270 |
16.07 |
6.02 |
3.28 |
8.36 |
3.05 |
3.28 |
150 |
6 |
11.32 |
2.77 |
168.3 |
3.52 |
290 |
28.3 |
7.11 |
3.52 |
13.84 |
3.40 |
3.52 |
Price comparison of few manufacturers
SANYO Special Steel |
Nippon Steel & Sumitomo Metals (NSSMC) |
Schoeller Bleckmann (AUSTRIA ) |
Kobe Steel |
Sandvik |
Salzgitter Mannesmann Stainless Tubes |
DMV Stainless |
Tubacex (SPAIN) |
USD/TON |
USD/TON |
USD/TON |
USD/TON |
USD/TON |
USD/TON |
USD/TON |
USD/TON |
5290 to 7030 $ |
5290 to 7030 $ |
5830 to 7645 $ |
5290 to 7030 $ |
7080 to 9270 $ |
5830 to 7645 $ |
6425 to 8420 $ |
5830 to 7645 $ |
What is Supply Condition Of Din 17457 Welded Pipe ?
Following are Supply Condition of Din 17457 Welded Pipe
- Polished
- Cold Finish
- Externally Polished
- Hot Finish
- Bright Annealed
- Passivated
- Cold Drawn Annealed
- Annealed and Pickled
What are Types of SS Welded Pipe

Stainless Steel ERW Pipe

Stainless Steel Spiral Pipe

Stainless Steel Welded Pipe

EFW Stainless Steel Pipe

Spiral Welded Stainless Steel Pipe

Large Diameter Stainless Steel Welded Pipe

SS LSAW Pipe

A312 Welded Pipe

SS SSAW Pipe
Stainless Steel Efw Pipe and spiral welded stainless steel pipe in ANSI SCH 80/ 60/ 40/ 20
How To Check The Seam Of Welded Stainless Steel Pipe?
The seam of the A312 welded pipe can be inspected based on different factors. The welded pipes can be checked with appearance tests, surface non-destructive testing, and ray detection or ultrasonic detection tests.
Stainless Steel Spiral Pipe Schedule Chart
PIPE SCHEDULES (Inches) |
O.D. Inches |
Nominal |
10 |
10s |
40s & Std |
160 |
80s & E.H. |
40 |
80 |
.405 |
1/8 |
.049 |
.049 |
.068 |
|
.095 |
.068 |
.095 |
.540 |
1/4 |
.065 |
.065 |
.088 |
|
.119 |
.088 |
.119 |
.675 |
3/8 |
.065 |
.065 |
.091 |
|
.126 |
.091 |
.126 |
.840 |
1/2 |
.083 |
.083 |
.109 |
.187 |
.147 |
.109 |
.147 |
1.050 |
3/4 |
.083 |
.083 |
.113 |
.218 |
.154 |
.113 |
.154 |
1.315 |
1 |
.109 |
.109 |
.133 |
.250 |
.179 |
.133 |
.179 |
1.660 |
1 1/4 |
.109 |
.109 |
.140 |
.250 |
.191 |
.140 |
.191 |
1.900 |
1 1/2 |
.109 |
.109 |
.145 |
.281 |
.200 |
.145 |
.200 |
2.375 |
2 |
.109 |
.109 |
.154 |
.343 |
.218 |
.154 |
.218 |
2.875 |
2 1/2 |
.120 |
.120 |
.203 |
.375 |
.276 |
.203 |
.276 |
3.500 |
3 |
.120 |
.120 |
.216 |
.437 |
.300 |
.216 |
.300 |
4.000 |
3 1/2 |
.120 |
.120 |
.226 |
|
.318 |
.226 |
.318 |
4.500 |
4 |
.120 |
.120 |
.237 |
.531 |
.337 |
.237 |
.337 |
5.000 |
4 1/2 |
|
|
.247 |
|
.355 |
|
|
5.563 |
5 |
.134 |
.134 |
.258 |
.625 |
.375 |
.258 |
.375 |
6.625 |
6 |
.134 |
.134 |
.280 |
.718 |
.432 |
.280 |
.432 |
7.625 |
7 |
|
|
.301 |
|
.500 |
|
|
8.625 |
8 |
.148 |
.148 |
.322 |
.906 |
.500 |
.322 |
.500 |
9.625 |
9 |
|
|
.342 |
|
.500 |
|
|
10.750 |
10 |
.165 |
.165 |
.365 |
1.125 |
.500 |
.365 |
.593 |
11.750 |
11 |
|
|
.375 |
|
.500 |
|
|
12.750 |
12 |
.180 |
.180 |
.375 |
1.312 |
.500 |
.406 |
.687 |
14.000 |
14 |
.250 |
.188 |
.375 |
1.406 |
.500 |
.437 |
.750 |
16.000 |
16 |
.250 |
.188 |
.375 |
1.593 |
.500 |
.500 |
.843 |
18.000 |
18 |
.250 |
.188 |
.375 |
1.781 |
.500 |
.562 |
.937 |
What are Value Added Services of SS Welded Pipe ?

Why Ultrasonic, Radiography & Magnetic Particle Test Performed For Stainless Steel Erw Pipe?
The three tests are performed on a large diameter stainless steel welded pipe to detect any flaws or defects in the material. Ultrasonic tests use sound waves to measure their thickness. Radiography tests use x-rays or gamma rays to identify flaws in the system. Magnetic tests are very sensitive that ensure the finest defects are detected.
Check spiral wound stainless steel pipe dimensional specification as per ASME B36.19 & pressure rating
How Do You Calculate Maximum Allowable Working Pressure Of Stainless Steel Welded Pipe?
A spiral wound stainless steel pipe can calculate the maximum allowable pressure using this formula P=2St/D.
Here,
- P= pressure of the material
- t=nominal wall thickness
- D= outside diameter in inches
- S= allowable stress in psi
A312 Welded Pipe Pressure Rating
Pipe Size |
O.D. Inches |
TRUE 5 |
5s |
10s |
TRUE 10 |
30 |
TRUE 40 |
40s & STD |
1/4 |
0.54 |
0.049 |
|
0.065 |
0.065 |
|
0.088 |
0.088 |
|
0.257 |
|
0.3297 |
0.3297 |
|
0.4248 |
0.4248 |
1/8 |
0.405 |
0.35 |
|
0.049 |
0.049 |
|
0.068 |
0.068 |
|
0.1383 |
|
0.1863 |
0.1863 |
|
0.2447 |
0.2447 |
1/2 |
0.84 |
0.065 |
0.065 |
0.083 |
0.083 |
|
0.109 |
0.109 |
|
0.5383 |
0.5383 |
0.671 |
0.671 |
|
0.851 |
0.851 |
3/8 |
0.675 |
0.049 |
|
0.065 |
0.065 |
|
0.091 |
0.091 |
|
0.3276 |
|
0.4235 |
0.4235 |
|
0.5676 |
0.5676 |
1 |
1.315 |
0.065 |
0.065 |
0.109 |
0.19 |
|
0.133 |
0.133 |
|
0.8678 |
0.8678 |
1.404 |
1.404 |
|
1.679 |
1.679 |
3/4 |
1.05 |
0.065 |
0.065 |
0.083 |
0.083 |
|
0.113 |
0.113 |
|
0.6838 |
0.6838 |
0.8572 |
0.8572 |
|
1.131 |
1.131 |
1 1/2 |
1.9 |
0.065 |
0.065 |
0.109 |
0.109 |
|
0.145 |
0.145 |
|
1.274 |
1.274 |
2.638 |
2.638 |
|
2.718 |
2.718 |
1 1/4 |
1.66 |
0.065 |
0.065 |
0.109 |
0.109 |
|
0.14 |
0.14 |
|
1.107 |
1.107 |
1.806 |
1.806 |
|
2.273 |
2.273 |
2 |
2.375 |
0.065 |
0.065 |
0.109 |
0.109 |
|
0.154 |
0.154 |
|
1.604 |
1.604 |
2.638 |
2.638 |
|
3.653 |
3.653 |
3 |
3.5 |
0.083 |
0.083 |
0.12 |
0.12 |
|
0.216 |
0.216 |
|
3.029 |
3.029 |
4.332 |
4.332 |
|
7.576 |
7.576 |
2 1/2 |
2.875 |
0.083 |
0.083 |
0.12 |
0.12 |
|
0.203 |
0.203 |
|
2.475 |
2.475 |
3.531 |
3.531 |
|
5.793 |
5.793 |
3 1/2 |
4 |
0.083 |
0.083 |
0.12 |
0.12 |
|
0.226 |
0.226 |
|
3.472 |
3.472 |
4.97 |
4.97 |
|
9.109 |
9.109 |
Which is most Selling Wall Thickness of SS Welded Pipe ?

Stainless Steel EFW Pipe Dimensions
Outside Diameter in. |
NPS Designator |
Schedule 80S in. |
Schedule 10S in. |
Schedule 5S in. |
Schedule 40S in. |
0.675 |
3/8 |
0.126 |
0.065 |
|
0.091 |
0.54 |
1/4 |
0.119 |
0.065 |
|
0.088 |
0.84 |
1/2 |
0.147 |
0.083 |
0.065 |
0.109 |
1.315 |
1 |
0.179 |
0.109 |
0.065 |
0.133 |
1.05 |
3/4 |
0.154 |
0.083 |
0.065 |
0.113 |
1.66 |
1 1/4 |
0.191 |
0.109 |
0.065 |
0.14 |
2.375 |
2 |
0.218 |
0.109 |
0.065 |
0.154 |
1.9 |
1 1/2 |
0.2 |
0.109 |
0.065 |
0.145 |
3.5 |
3 |
0.3 |
0.12 |
0.083 |
0.216 |
2.875 |
2 1/2 |
0.276 |
0.12 |
0.083 |
0.203 |
4.5 |
4 |
0.337 |
0.12 |
0.083 |
0.237 |
12.75 |
12 |
0.5 |
0.18 |
0.156 |
0.375 |
4 |
3 1/2 |
0.318 |
0.12 |
0.083 |
0.226 |
5.563 |
5 |
0.375 |
0.134 |
0.109 |
0.258 |
8.625 |
8 |
0.5 |
0.148 |
0.109 |
0.322 |
6.625 |
6 |
0.432 |
0.134 |
0.109 |
0.28 |
10.75 |
10 |
0.5 |
0.165 |
0.134 |
0.365 |
Many of the listed suppliers stocks and supply SS Welded Pipe of leading manufacturers such as ThyssenKrupp, Tenaris, Baosteel, Tubacex, NSSMC and Sandvik material in Middle East
Why Piping Material to buy Stainless Steel ERW Pipe ?

- offer you best price with good quality of the materials.
- have the huge ready stock for sell.
- deliver the materials strictly according to the the delivery date noted on the contract.
- various testing apply on product like tests such as Eddy Current test, Ultrasonic test, Hydraulic test and so on before delivery
Below are largest SS Welded Pipe Manufacturer list

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