It is relatively easy to distinguish welded pipes. It is the seam on the side that leaves a distinguishable mark on the Stainless steel welded pipe that makes it easy for identification. Although there is no major physical difference between welded and seamless pipes as such, aside from the seam. The difference in cost is probably something that separates them. Stainless Steel Welded Tube is easily manufactured in comparison to seamless ones.
In this process, a Stainless Steel Welded Pipe Manufacturer uses a large stainless steel sheet with the length being the length of the entire pipe, and the circumference of the pipe is taken as the width of the pipe. The height of the pipe i.e. the thickness of the sheet and the Stainless Steel Erw Pipe is one dimension that remains constant. The entire length of the sheets is held together such that they resemble a pipe. After assembly, the Efw Stainless Steel Pipe is then welded using techniques suited to the material used. For instance, if the alloy being welded was stainless steel grade 310, the welding techniques used on the ASTM A312 Welded Pipe would include TIG, MIG, SMAW, PLASMA, SAW as well as FCAW.
Type of Manufacturing | 100% X Ray Welded, Fabricated, ERW (Electric Resistance Welded), Welded, CDW |
Pipe End Forming | Beveled One End, Plain One End, Bevel large end, Bevel both ends, Bevel one end, Beveled end, Plain Both Ends, Treaded Both Ends, Bevel small end, Treaded On End |
Types of Different TDC | Polished, Annealed & Pickled, Cold Drawn, Bright Annealed |
Standard Specification Chart | ASTM A312, A249, A270, A269, A358, A268, A213 |
ANSI / ASME Specification Chart | ANSI/ASME B36.10M and B36.19M |
we produce Shapes and Types | Hydraulic, Hex, Round, Square, Honed, Rectangle |
Surface Finish Material | No.4, No.1, 2B, No.8 Mirror or custom Finish as per customer Req |
ASME B36.10 Pipe Schedules Chart | SCH 5, 10, 40, 80, 80S, 160, XXS, XS |
Available Value Added Services | Cutting, Threading, Color Coding, Grooving, Material testing, Beveling, Destructive, Export Documentation, MTR’s Available, Polishing, Threading, Machining, Non Customer Tagging/ Marking, Ultrasonic Testing, Export Packaging, Destructive |
Marking |
Marked Pipe Sample: ANSI B36.19 TP304 12" NB SCH 40S ERW HEAT NO. XXXX |
Grade | C(max) | Si(max) | Mn(max) | P(max) | S(max) | Cr | Ni | Mo | Ti |
TP304/1.4301 | 0.08 | 1 | 2 | 0.045 | 0.03 | 18.0-20.0 | 8.0-10.5 | ||
TP304L/1.4307 | 0.035 | 1 | 2 | 0.045 | 0.03 | 18.0-20.0 | 8.0-12.0 | ||
TP304H/1.4948 | 0.04-0.10 | 1 | 2 | 0.045 | 0.03 | 18.0-20.0 | 8.0-12.0 | ||
TP316/1.4401 | 0.08 | 1 | 2 | 0.045 | 0.03 | 16.0-18.0 | 11.0-14.0 | 2.0-3.0 | |
TP316L/1.4404 | 0.035 | 1 | 2 | 0.045 | 0.03 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | |
TP316Ti/1.4571 | 0.08 | 1 | 2 | 0.045 | 0.03 | 16.0-18.0 | 10.0-14.0 | 2.0-3.0 | 0.7>5x(C+N) |
TP321/1.4541 | 0.08 | 1 | 2 | 0.045 | 0.03 | 17.0-19.0 | 9.0-12.0 | 0.7>5x(C+N) | |
TP317L/1.4449 | 0.08 | 1 | 2 | 0.045 | 0.03 | 18.0-20.0 | 11.0-14.0 | 3.0-4.0 | |
TP347H/1.4912 | 0.04-0.10 | 1 | 2 | 0.045 | 0.03 | 17.0-19.0 | 9.0-13.0 | ||
TP309S/1.4833 | 0.08 | 1 | 2 | 0.045 | 0.03 | 22.0-24.0 | 12.0-15.0 | 0.75 | |
TP310S/1.4845 | 0.08 | 1 | 2 | 0.045 | 0.03 | 24.0-26.0 | 19.0-22.0 | 0.75 |
NOMINAL SIZE Chart- NPS (Inch) |
Schedule | Outer Diameter (Inch) |
WALL THICKNESS Chart (Inch) |
Inner Diameter (Inch) |
BURSTING INTERNAL PRESSURE (PSI) |
COLLAPSING EXTERNAL PRESSURE (PSI) |
---|---|---|---|---|---|---|
1/8 | 10 | 0.405 | 0.049 | 0.307 | 18150 | 7468 |
40 | 0.405 | 0.068 | 0.269 | 25195 | 10761 | |
80 | 0.405 | 0.095 | 0.215 | 35185 | 15441 | |
1/4 | 10 | 0.540 | 0.065 | 0.410 | 18055 | 7425 |
40 | 0.540 | 0.088 | 0.364 | 24444 | 10415 | |
80 | 0.540 | 0.119 | 0.302 | 33055 | 14445 | |
3/8 | 10 | 0.678 | 0.065 | 0.545 | 14380 | 5705 |
40 | 0.678 | 0.091 | 0.493 | 20132 | 8397 | |
80 | 0.678 | 0.126 | 0.423 | 27876 | 12021 | |
1/2 | 5 | 0.840 | 0.065 | 0.710 | 11607 | 4407 |
10 | 0.840 | 0.083 | 0.674 | 14821 | 5911 | |
40 | 0.840 | 0.109 | 0.622 | 19464 | 8084 | |
80 | 0.840 | 0.147 | 0.546 | 26250 | 11260 | |
3/4 | 5 | 1.050 | 0.065 | 0.920 | 9285 | 3295 |
10 | 1.050 | 0.083 | 0.884 | 11857 | 4524 | |
40 | 1.050 | 0.113 | 0.824 | 16142 | 6529 | |
80 | 1.050 | 0.154 | 0.742 | 22000 | 9271 | |
1 | 5 | 1.315 | 0.065 | 1.185 | 7414 | 2445 |
10 | 1.315 | 0.109 | 1.097 | 12433 | 3795 | |
40 | 1.315 | 0.133 | 1.049 | 15171 | 6075 | |
80 | 1.315 | 0.179 | 0.957 | 20418 | 8530 | |
1 1/4 | 5 | 1.660 | 0.065 | 1.530 | 5873 | 1725 |
10 | 1.660 | 0.109 | 1.442 | 9849 | 3585 | |
40 | 1.660 | 0.140 | 1.380 | 12650 | 3895 | |
80 | 1.660 | 0.191 | 1.278 | 17259 | 7052 | |
1 1/2 | 5 | 1.900 | 0.065 | 1.770 | 5131 | 1376 |
10 | 1.900 | 0.109 | 1.682 | 8605 | 3002 | |
40 | 1.900 | 0.145 | 1.610 | 11447 | 4332 | |
80 | 1.900 | 0.200 | 1.500 | 15789 | 6364 | |
2 | 5 | 2.375 | 0.065 | 2.245 | 4105 | 896 |
10 | 2.375 | 0.109 | 2.157 | 6884 | 2196 | |
40 | 2.375 | 0.154 | 2.067 | 9726 | 3526 | |
80 | 2.375 | 0.218 | 1.939 | 13768 | 5418 | |
2 1/2 | 5 | 2.875 | 0.083 | 2.709 | 4330 | 1001 |
10 | 2.875 | 0.120 | 2.635 | 6260 | 1905 | |
40 | 2.875 | 0.203 | 2.469 | 10591 | 3931 | |
3 | 5 | 3.500 | 0.083 | 3.334 | 3557 | 639 |
10 | 3.500 | 0.120 | 3.260 | 5142 | 1375 | |
40 | 3.500 | 0.216 | 3.068 | 9257 | 3307 | |
3 1/2 | 5 | 4.000 | 0.083 | 3.834 | 3112 | 431 |
10 | 4.000 | 0.120 | 3.760 | 4500 | 1081 | |
4 | 5 | 4.500 | 0.083 | 4.334 | 2766 | 315 |
10 | 4.500 | 0.120 | 4.260 | 4000 | 845 | |
40 | 4.500 | 0.237 | 4.026 | 7900 | 2672 | |
5 | 5 | 5.563 | 0.109 | 5.345 | 2949 | 350 |
10 | 5.563 | 0.134 | 5.295 | 3613 | 665 | |
6 | 5 | 6.625 | 0.109 | 6.407 | 2467 | 129 |
10 | 6.625 | 0.134 | 6.357 | 3033 | 394 |
NPS Designator | Permissible Variations in Outside Diameter | |
---|---|---|
Over In. | Under In. | |
1/8 to 1-1/2, incl | 1/64 (0.015) | 1/32 (0.031) |
Over 1-1/2 to 4, incl | 1/32 (0.031) | 1/32 (0.031) |
Over 4 to 8, incl | 1/16 (0.062) | 1/32 (0.031) |
Over 8 to 18, incl | 3/23 (0.093) | 1/32 (0.031) |
Grades | Density of ERW Pipe | Melting Points in °C | Tensile Strength Chart | Yield Strength Chart (0.2%Offset) | Elongation in % |
304/ 304L | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
304H | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 40 % |
310 / 310S / 310H | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 40 % |
306/ 316H | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
316L | 8.0 g/cm3 | 1399 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
317 | 7.9 g/cm3 | 1400 °C (2550 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
321 | 8.0 g/cm3 | 1457 °C (2650 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
347 | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi 75000 , MPa 515 | Psi 30000 , MPa 205 | 35 % |
904L | 7.95 g/cm3 | 1350 °C (2460 °F) | Psi 71000 , MPa 490 | Psi 32000 , MPa 220 | 35 % |
NPS Designator | Outside Diameter in. | Schedule 5S in. | Schedule 10S in. | Schedule 40S in. | Schedule 80S in. |
---|---|---|---|---|---|
1/4 | 0.540 | 0.065 | 0.088 | 0.119 | |
3/8 | 0.675 | 0.065 | 0.091 | 0.126 | |
1/2 | 0.840 | 0.065 | 0.083 | 0.109 | 0.147 |
3/4 | 1.050 | 0.065 | 0.083 | 0.113 | 0.154 |
1.0 | 1.315 | 0.065 | 0.109 | 0.133 | 0.179 |
1 1/4 | 1.660 | 0.065 | 0.109 | 0.140 | 0.191 |
1 1/2 | 1.900 | 0.065 | 0.109 | 0.145 | 0.200 |
2 | 2.375 | 0.065 | 0.109 | 0.154 | 0.218 |
2 1/2 | 2.875 | 0.083 | 0.120 | 0.203 | 0.276 |
3 | 3.500 | 0.083 | 0.120 | 0.216 | 0.300 |
3 1/2 | 4.000 | 0.083 | 0.120 | 0.226 | 0.318 |
4 | 4.500 | 0.083 | 0.120 | 0.237 | 0.337 |
5 | 5.563 | 0.109 | 0.134 | 0.258 | 0.375 |
6 | 6.625 | 0.109 | 0.134 | 0.280 | 0.432 |
8 | 8.625 | 0.109 | 0.148 | 0.322 | 0.500 |
10 | 10.750 | 0.134 | 0.165 | 0.365 | 0.500 |
12 | 12.750 | 0.156 | 0.180 | 0.375 | 0.500 |
STANDARDS | WERKSTOFF NUMBER | UNS NO. | JIS NO. | BS NO. | GOST NO. | AFNOR NO. | EN NO. |
SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | 3304S11 | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
SS 304H | 1.4301 | S30409 | – | – | – | – | – |
SS 310 | 1.4841 | S31000 | SUS 310 | 310S24 | 20Ch25N20S2 | – | X15CrNi25-20 |
SS 310S | 1.4845 | S31008 | SUS 310S | 310S16 | 20Ch23N18 | – | X8CrNi25-21 |
SS 310H | – | S31009 | – | – | – | – | – |
SS 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | 316S31 / 316S33 | – | Z7CND17‐11‐02 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
SS 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | 316S11 / 316S13 | 03Ch17N14M3 / 03Ch17N14M2 | Z3CND17‐11‐02 / Z3CND18‐14‐03 | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
SS 316H | 1.4401 | S31609 | – | – | – | – | – |
SS 316Ti | 1.4571 | S31635 | SUS 316Ti | 320S31 | 08Ch17N13M2T | Z6CNDT17‐123 | X6CrNiMoTi17-12-2 |
SS 317 | 1.4449 | S31700 | SUS 317 | – | – | – | – |
SS 317L | 1.4438 | S31703 | SUS 317L | – | – | – | X2CrNiMo18-15-4 |
SS 321 | 1.4541 | S32100 | SUS 321 | – | – | – | X6CrNiTi18-10 |
SS 321H | 1.4878 | S32109 | SUS 321H | – | – | – | X12CrNiTi18-9 |
SS 347 | 1.4550 | S34700 | SUS 347 | – | 08Ch18N12B | – | X6CrNiNb18-10 |
SS 347H | 1.4961 | S34709 | SUS 347H | – | – | – | X6CrNiNb18-12 |
SS 904L | 1.4539 | N08904 | SUS 904L | 904S13 | STS 317J5L | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 |
PIPE SCHEDULES WALL THICKNESS (Inches)
|
||||||||
---|---|---|---|---|---|---|---|---|
Nominal
|
O.D. Inches
|
10s
|
10
|
40s & Std
|
40
|
80s & E.H.
|
80
|
160
|
1/8
|
.405
|
.049
|
.049
|
.068
|
.068
|
.095
|
.095
|
|
1/4
|
.540
|
.065
|
.065
|
.088
|
.088
|
.119
|
.119
|
|
3/8
|
.675
|
.065
|
.065
|
.091
|
.091
|
.126
|
.126
|
|
1/2
|
.840
|
.083
|
.083
|
.109
|
.109
|
.147
|
.147
|
.187
|
3/4
|
1.050
|
.083
|
.083
|
.113
|
.113
|
.154
|
.154
|
.218
|
1
|
1.315
|
.109
|
.109
|
.133
|
.133
|
.179
|
.179
|
.250
|
1 1/4
|
1.660
|
.109
|
.109
|
.140
|
.140
|
.191
|
.191
|
.250
|
1 1/2
|
1.900
|
.109
|
.109
|
.145
|
.145
|
.200
|
.200
|
.281
|
2
|
2.375
|
.109
|
.109
|
.154
|
.154
|
.218
|
.218
|
.343
|
2 1/2
|
2.875
|
.120
|
.120
|
.203
|
.203
|
.276
|
.276
|
.375
|
3
|
3.500
|
.120
|
.120
|
.216
|
.216
|
.300
|
.300
|
.437
|
3 1/2
|
4.000
|
.120
|
.120
|
.226
|
.226
|
.318
|
.318
|
|
4
|
4.500
|
.120
|
.120
|
.237
|
.237
|
.337
|
.337
|
.531
|
4 1/2
|
5.000
|
.247
|
.355
|
|||||
5
|
5.563
|
.134
|
.134
|
.258
|
.258
|
.375
|
.375
|
.625
|
6
|
6.625
|
.134
|
.134
|
.280
|
.280
|
.432
|
.432
|
.718
|
7
|
7.625
|
.301
|
.500
|
|||||
8
|
8.625
|
.148
|
.148
|
.322
|
.322
|
.500
|
.500
|
.906
|
9
|
9.625
|
.342
|
.500
|
|||||
10
|
10.750
|
.165
|
.165
|
.365
|
.365
|
.500
|
.593
|
1.125
|
11
|
11.750
|
.375
|
.500
|
|||||
12
|
12.750
|
.180
|
.180
|
.375
|
.406
|
.500
|
.687
|
1.312
|
14
|
14.000
|
.188
|
.250
|
.375
|
.437
|
.500
|
.750
|
1.406
|
16
|
16.000
|
.188
|
.250
|
.375
|
.500
|
.500
|
.843
|
1.593
|
18
|
18.000
|
.188
|
.250
|
.375
|
.562
|
.500
|
.937
|
1.781
|
Wall Thickness | Tube Sizes ( O.D.) |
---|---|
.010 | 1/16" , 1/8" , 3/16" |
.020 | 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8" |
.012 | 1/8" |
.016 | 1/8" , 3/16" |
.028 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2" |
.035 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
.049 | 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
.065 | 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" |
.083 | 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" |
.095 | 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2" |
.109 | 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" |
.120 | 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" |
.125 | 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4" |
.134 | 1" |
.250 | 3" |
.375 | 3 1/2" |
SS ERW Pipes | Prices |
Stainless Steel Welded Square Pipes Size 1.5 Mm | 77 |
Stainless Steel Welded Rectangular Pipes Size 1.5 Mm | 77 |
Welded Stainless Steel Pipe O.D:0.33-300mm | US$10 to 15000 / Ton |
HS CODE | DESCRIPTION |
---|---|
7306 | Other Tubes, Pipes And Hollow Profiles (For Example, Open Seam Or Welded, Riveted Or Similarly Closed), Of Iron Or Stee |
73061100 | Welded ,of stainless steel |
73064000 | Other, welded, of circular cross-section, of stainless steel |
73066100 | Of square or rectangular- cross-section |
73062100 | Welded, of stainless steel |
7307 | Tube Or Pipe Fittings (For Example, Couplings, Elbows, Sleeves), Of Iron Or Steel |
73072900 | Other |
Efw Stainless Steel Pipes | Thailand, Oman, France, Hong Kong |
2" X 18" Stainless Steel Welded Pipes | Malaysia, Malaysia, Germany, Turkey |
SS Erw Pipes | Malaysia, Dubai, Finland, USA |
Stainless Steel Erw Pipes | Brazil, UK, Saudi Arabia (KSA), Spain |
3/4" X 10 Ft. Stainless Steel Welded Tube | Singapore, Europe, South Africa, UAE |
SS Welded Pipes, 14 Inch Sch40 | Philippines, Chile, Iran, Canada |
Stainless Steel Welded Water Pipe Round Tube | United Arab Emirates (UAE), Norway, Romania, Europe |
1/2" X 10 Ft. SS Welded Pipes Schedule 40 | Russia, Malaysia, Netherlands, Sweden |
19.05x2.77x4454mm Stainless Steel Efw Pipes | Egypt, Los Alamos -Mexico, Mexico, Malaysia |
18 Inch Stainless Steel Large Diameter Welded Pipe | Malaysia, NY 12203 (USA), United Kingdom -UK, Singapore |
Custom Size 4 Inch SS Erw Pipes Sanitary Piping | UK, Philippines, Poland, Dammam -KSA |
Schedule 10 SS Efw Pipes | Singapore, Europe, Malaysia, Qatar |
SS Welded Square Pipes In Size 1 Inch | Thailand, Czechia, Malaysia, Japan |
SS Welded Rectangular Pipes In Size 1.5 Mm | China, Bangladesh, Colombia, Malaysia |
SS Welded Round Pipes In Size 1.5 Mm | Taiwan, Kuwait, Philippines, South Africa |