The weld procedures used for manufacturing stainless steel welded pipes includes TIG, Combination of Plasma and TIG , TIG with filler, K-TIG, TIG and SAW , SAW depending up on the wall thickness of input raw material.
Stainless Steel Welded Pipe upto 12 NPS in double random length are manufactured using coils. The welding process is controlled by laser seam tracking equipment to optimize the quality of weld seam.
AUSTENITIC GRADES: 304/L/H/LN, 316/L/H/LN/Ti, 317L, 321/H, 347/H, 309, 310/S, and 904L.
FERRITIC & MARTENSITIC GRADES: 409/L/M, 410, 430/Ti, 436, 439, and 441.
DUPLEX STAINLESS STEEL: UNS 31803, 32205, 32750, and 31500.
LENGTH: As per customer requirement (up to a maximum of 22 meters)
FINISHING: Tubes can be supplied with mirror and mechanical polishing with grit ranges of 80, 120, 240, 320, 400, 600, and more.
| Products | Size/Range | Thickness | Specification |
|---|---|---|---|
| Welded Pipes | 1/8 NPS to 12 NPS | SCH.5S ,10S,40S | ASTM A-312, A 554, A 778, A 790, API 5LC |
| Longitudinal Pipes | 8 NPS to 48 NPS | 2.77 MM to 50.00 MM | ASTM A 358, A 409, A 778, A 928 API 5LC |
| Longitudinal with Circumferential Seam Welded Pipes | 20 NPS to 72 NPS | 5.54 MM to 20.00 MM | ASTM A 358, A 409, A 778 |
| Grades : TP-304/L/LN/H/N, TP-316/L/LN/H/N/Ti,TP-317L,TP-321/H,TP-347/H, UNS S 31254, S31803, S32205, S32750, S32760 | |||
| *Sizes other than above can be manufactured as per requirement | |||
| PRODUCT | SIZE | THICKNESS | SPECIFICATION |
|---|---|---|---|
| PIPES | 1/8” NB TO 1” NB 1” NB to 24” NB |
Sch.5, 10, 40S, 80s Sch.5, 10, 40s |
ASTM A-312, A-554, A-778 & Its Equivalent ASME, DIN & EN Standard |
| TUBES | 6.35 mm To 102 mm OD | 0.50 mm TO 7.0 mm | ASTM A-249, A-268, A-269, A-270, A-554, A-688, A-778, IS 13316:92, EN 10217-7 & Its Equivalent ASME, DIN & EN Standard |
| Item | Stainless Steel Welded Pipe, Stainless Steel Welded Tube, ASTM A312 316L Stainless Steel Welded Pipes, SS 304 Welded Tubes, SS304L Welded Tubing, SS 316 Welded Tubes, SS316L Welded Pipes, Duplex Welded Tubes, SS 904L Welded Tubes, SS310S Welded Tubes, SS 317L Welded Pipes, UNS31803 Duplex Stainless Steel Welded Pipes |
|---|---|
| Material |
|
| Standard | ASTM A312, A554, A249, A269, A789, A790, A511, EN10217-7, DIN17455, DIN17457 |
| Hardness | 1/6 hard, 1/8 hard, 3/8 hard, 1/4 hard, 1/2 hard, full hard, soft, etc |
| Specification | OD:2mm~914mm, WT:0.2mm~120mm |
| Outer Diameter | 2mm~914mm |
| Thickness | 0.2mm~120mm |
| Length | 1m, 2m, 3m, 4m, 6m, or as required, 1m, 2m, 3m, or as required |
| Stainless Steel ERW Pipe Sizes | 3.35 mm OD To 101.6 mm OD, 15 NB to 150 NB IN |
| Wall Thickness | 0.2mm~120mm |
| Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Stainless Steel Fabricated tube Length | Single Random, Double Random, Standard & Cut length |
| Stainless Steel welded Tube Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Stainless Steel welded tube Form | Round, Coil, Square, Rectangular, Boiler, Hydraulic, Straight or ‘U’ bent Tubes, Hollow, LSAW Tubes Etc. |
| Stainless Steel welded Tube Type | ERW, EFW, Welded, Fabricated |
| End | Plain End, Beveled End, Treaded |
| Marking | All SS welded pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.) |
| Application |
|
| Value Added Service | Draw & Expansion as per required Size & Length, Polish (Electro & Commercial) Annealed & Pickled Bending, Machining Etc. |
| Surface | mill, polished, bright, hair line, mirror, brush, sand blast, etc |
| Supply Ability | 3000 Metric Ton/Metric Tons per Month standard size in stock Ornamental tubes Structural tubes Process pipe Hygienic tubes Heat exchanger tubes Mechanical tubes |
| Test Certificate | Manufacturer Test Certificate Laboratory Test Certificate from Govt. Approved Lab. Under Third Party Inspection |
| We can also cut, thread, and groove SS welded Tubes to meet your specifications | |
1. Name of material: welded stainless steel tube
2. Grade: conform to the requirements as to chemical composition as prescribed in Table 1 of A269
3. Tolerance of outside diameter, wall thickness, length as per Table 3 of A269
OD |
wall |
length |
|
|---|---|---|---|
<38.1mm |
±0.13mm |
OD<12.7mm ±15% OD≥12.7mm ±10% |
OD<38.1mm +3.20mm -0mm OD≥38.1mm +4.80 -0mm |
≥38.1mm~88.9mm |
±0.25mm |
||
≥88.9mm~139.7mm |
±0.38mm |
||
≥139.7mm~203.7mm |
±0.76mm |
||
≥203.7mm~304.8mm |
±1.01mm |
||
≥304.8mm~355.6mm |
±1.26mm |
||
4. Condition: hot finished or cold finfished.
5. Insoection and testing
Chemical composition
flange test(welded tubes), hardness(Rockwell, Brinell)
Reverse flattening test
Hydrostatic or Nondestructive test
6. Surface condition-pickling, if bright annealing required, pickling not necessary.
1. Stress-relieved annealing tubes
2. Air underwater pressure test
3. Stabilizing heat treatment
4. Intergranular corrosion test-A262-E
Stainless Steel welded pipe price per kg in Mumbai : 3-5 US$ PER KG
Check the of our standard sizes of Stainless Steel welded pipe. If you do not see the size you require, please contact us as we do not have all of our stock listed here, larger stock is also available.
| grade | UNS | Chemical composition (%) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Mn≤ | P≤ | S≤ | Si | Ni | Cr | Mo | Fe | Nb+Ta | Ta≤ | N | Ce | other | ||
| TP304 | S30400 | 0.08max | 2.00 | 0.040 | 0.030 | 0.75max | 8.00-11.00 | 18.0-20.0 | / | / | / | / | / | / | / |
| TP304L | S30403 | 0.035max | 2.00 | 0.040 | 0.030 | 0.75max | 8.00-13.00 | 18.0-20.0 | / | / | / | / | / | / | / |
| TP316 | S31600 | 0.08max | 2.00 | 0.040 | 0.030 | 0.75max | 11.00-14.00 | 16.00-18.00 | 2.0-3.0 | / | / | / | / | / | / |
| TP316L | S31603 | 0.035maxB | 2.00 | 0.040 | 0.030 | 0.75max | 10.00-15.00 | 16.00-18.00 | 2.0-3.0 | / | / | / | / | / | / |
| TP321 | S32100 | 0.08max | 2.00 | 0.040 | 0.030 | 0.75max | 9.00-13.00 | 17.00-20.00 | / | D | / | / | / | / | / |
| Standard | ASTM A312/A312M | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| grades |
|
||||||||||
| Yield strength σ0.2(Mpa) | ≥170;≥205 | ||||||||||
| Tensile strength σ0.2(Mpa) | ≥485;≥515 | ||||||||||
| Elongation σ5(%) | ≥35 |
| tolerance (mm) |
|
||||||||||||||||
| WTH（mm) | +/-12.5%t | ||||||||||||||||
| other | HRB<90 |
| flattening test (mm) | H=1.09t/(0.09+t/D) | |||||||
| flaring test | ||||||||
| grain size | ASTM E112 6 | |||||||
| hydrostatic test (Mpa) |
|
|||||||
| intergranular corrostion | ASTM A262 E (supplement) | |||||||
| Non-destructive test | ASTM E13 E309 E426 | |||||||
| heat treatment | Requirement |
The market volumes (production, imports, exports, apparent consumption) for stainless welded tube & pipe are shown for the following regions and countries (split into round and square/rectangular tubes):
We keep bulk stock for quick delivery to our clients
| Location | Days | Location | Days |
|---|---|---|---|
| UAE | 15 | Saudi Arabia | 15 |
| Libya | 39 | Syria | 40 |
| Qatar | 15 | India | 7 |
| Turkey | 30 | Tanzania | 30 |
| Namibia | 36 | Italy | 36 |
| Uganda | 39 | Angola | 38 |
| Kazakhstan | 20 | Algeria | 20 |
| South Africa | 40 | Thailand | 20 |
| Indonesia | 20 | Australia | 39 |
| Bahrain | 15 | Kenya | 35 |
| Zambia | 34 | Egypt | 36 |
| Nigeria | 39 | Ethiopia | 38 |
| Vietnam | 20 | Albania | 20 |