Stainless Steel welded pipe suppliers

SS ERW Pipes manufacturers in India, SS welded tubes exporter in India, ASTM A 312 welded pipe traders, SS Welded Square Tube distributor in Mumbai, ASTM A 358 welded pipe stockist in India

Stainless Steel Welded Pipe
Stainless Steel Welded Pipe
Welded Stainless Steel Tube
Welded Stainless Steel Tube
Stainless Steel ERW Pipes
Stainless Steel ERW Pipes

Sch 40s welded stainless pipe, SS polished welded pipe manufacturers in Rajkot, Gujarat, Stainless steel butt weld fittings stockholder in India, seam welded unannealed austenitic stainless steel tubular products wholesaler in India & UK

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 specification

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

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
  • TP304, TP304L, TP304H, TP316L, TP316TI, TP347, TP347H
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.)
  • Ornamental & Structural Tubes
  • Exhaust Tubes
  • Tube & Pipe for Industrial Applications
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

ASTM A312 welded austenitic stainless steel pipes

  • Standard: ASTM A312
  • Grade: TP304/304L, TP309S, TP310S, TP316/316L/316H/316TI, TP321/321H, TP347/347H
  • Size: 10 - 1610 mm

ASTM A269 welded Austenitic stainless steel tubes

  • grade: T11, T12, T22, TP304, TP304L, TP304H, TP316L, TP316TI, TP347, TP347H
  • standard: ASTM A269

Specification of ASTM A269 welded Austenitic stainless steel Tube

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<12.7mm ±15%

OD≥12.7mm ±10%

OD<38.1mm +3.20mm -0mm

OD≥38.1mm +4.80 -0mm











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.

ASTM A269 welded Austenitic stainless steel tube supplementary requirement

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 list

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.

Stainless Steel ERW Pipe Suppliers, Square welded Stainless Steel pipe stockist, Stainless Steel schedule 40 welded pipes, supplier of ERW Stainless Steel Tube, Polished Stainless Steel welded Pipe Stock Holder

ASTM A312 Austenitic stainless steel welded pipe chemical composition:

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 / / / / /

ASTM A312 stainless steel welded pipe grade and mechanical property:

Standard ASTM A312/A312M
TP304 TP304L
TP316 TP316L
TP317 TP317L
TP347 TP310H*
Yield strength σ0.2(Mpa) ≥170;≥205
Tensile strength σ0.2(Mpa) ≥485;≥515
Elongation σ5(%) ≥35

ASTM A312 welded stainless steel tube and pipe tolerance requirement

tolerance (mm)
OD tolerance
10.3-48.3 +0.40/-0.80
>48.3-114.3 +0.80/-0.08
>114.3-219.1 +1.60/-0.80
>219.1-457.2 +2.40-0.80
>457.2-660.4 +3.20/-0.80
>660.4-864 +4.00/-0.08
>864-1219.2 +4.80/-0.08
WTH(mm) +/-12.5%t
other HRB<90

ASTM A312 standard testing requirement

flattening test (mm) H=1.09t/(0.09+t/D)
flaring test
grain size ASTM E112 6
hydrostatic test (Mpa)
D Pmax ASTM A530
D≤270mm P=2Rt/D
≤88.9 17
>88.9 19
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):

  • Europe: Germany, France, Italy, United Kingdom, Spain, Netherlands, Belgium, Austria, Sweden, Finland, Denmark, Poland, Czech Republic, Romany, Other EU27, Switzerland, Norway, Turkey, Other Europe
  • America: USA, Canada, Mexico, Brazil, Other America
  • Asia: Japan, South Korea, Taiwan, Mainland China, Singapore, Malaysia, Indonesia, Thailand, Other Asia
  • ROW: Russia, Ukraine, Other CIS, Iran, Qatar, Saudi Arabia, United Arab Emirates, Other Middle East, Algeria, Angola, Egypt, Nigeria, South Africa, Other Africa, Australia & New Zealand, India, Others

Delivery Location and schedule for Stainless Steel welded pipe

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
supplier of Stainless Steel welded pipe | stockist of Stainless Steel welded pipe in Mumbai, India