Why Buyers Pick Us for Stainless Steel ERW Pipe ?
Filler-Free Seam
Straight longitudinal weld made without added filler metal.
Light to Standard Walls
Sch 5S, 10S and 40S from 1/2″ up to 24″ NB.
CE & PED Approved
Pressure-grade lots certified for EU-bound projects.
Racked for Quick Loading
Common sizes held in Mumbai for road or container dispatch.
SS ERW Pipe Quick Specs

Reach Out To ASTM A312 Welded Pipe Supplier In India For Specification And Weight Chart
SS ERW Pipe begins with cold reduced flat strip. Both strip borders fuse together lengthwise. ASTM A312 ERW Pipe welding needs zero added metal. Afterwards all tubes receive full thermal treatment. SS ERW Pipe Sizes cover half inch through 24 inch. SS ERW Pipe Wall Thickness follows Schedule 5S, 10S plus 40S.
Meet Hitech, trusted Stainless Steel ERW Pipe manufacturer in India. Low carbon 304L suits fabrication needing many joints. SS 304 ERW Pipe shares production with SS 316 ERW Pipe. 316L also flows down identical mills. Critical service orders leave with PED plus CE approval. All tied packs display melt code, alloy plus dimension. Mail project requirements today. Instant inventory checks follow.
Stainless Steel ERW Pipe Specification
Detailed SS ERW Pipe Specification inspectors verify when every delivery arrives.
ERW SS Pipe Weld Method
Automatic welding, no filler metal added
Stainless Steel Welded Pipe Seam Count
Single seam to NPS 14; two seams above NPS 14 only with buyer approval
ASME SA312 ERW Pipe Dimension Code
ASME B36.19M (stainless “S” schedules)
A312 Welded Pipe OD Tolerance
+0.40 / −0.80 mm to 48.26 mm OD; ±0.80 mm to 114.30 mm OD
SS 316 ERW Pipe Wall Tolerance
−12.5% under nominal; over-limit +20.0% for NPS 1/8 – 2-1/2
Stainless Steel ERW Tube Cut-Length Tolerance
+6 mm / −0 on specified cut lengths
SS 304 ERW Pipe End Preparation
Plain, bevelled or threaded to ASME B1.20.1
SS ERW Pipe Finishes
Annealed & pickled, 180 – 320 grit polished, mirror
Welded Stainless Pipe Marking
Spec, grade, welded mark, size, schedule & heat no.
SS ERW Pipe Seam Welding, Finish & Marking
Large diameter welded stainless pipe prepared and inspected for our clients.
Large Diameter SS Welded Pipe
- Rolled and seam welded in-house
- Clean bore, straight longitudinal seam
- Made to client drawing
TIG Welding of SS ERW Pipe Seam
- Skilled TIG welders
- Controlled heat input
- Seam checked before dispatch
SS Weld Seam Finish & Marking
- Uniform weld bead
- Size and heat marking on pipe
- Pickling / polishing on request
SS ERW Pipe Weight Chart & Schedule Sizes
Contact our Stainless Steel ERW Pipe supplier in Mumbai desk for kilogram pricing.
| NB | OD (mm) | Sch 5S WT (mm) | Sch 5S (kg/m) | Sch 10S WT (mm) | Sch 10S (kg/m) | Sch 40S WT (mm) | Sch 40S (kg/m) |
|---|---|---|---|---|---|---|---|
| 1/2″ | 21.3 | 1.65 | 0.81 | 2.11 | 1.01 | 2.77 | 1.28 |
| 3/4″ | 26.7 | 1.65 | 1.03 | 2.11 | 1.29 | 2.87 | 1.70 |
| 1″ | 33.4 | 1.65 | 1.30 | 2.77 | 2.11 | 3.38 | 2.53 |
| 1-1/4″ | 42.2 | 1.65 | 1.67 | 2.77 | 2.72 | 3.56 | 3.43 |
| 1-1/2″ | 48.3 | 1.65 | 1.92 | 2.77 | 3.14 | 3.68 | 4.09 |
| 2″ | 60.3 | 1.65 | 2.41 | 2.77 | 3.97 | 3.91 | 5.49 |
| 2-1/2″ | 73.0 | 2.11 | 3.73 | 3.05 | 5.31 | 5.16 | 8.72 |
| 3″ | 88.9 | 2.11 | 4.56 | 3.05 | 6.52 | 5.49 | 11.41 |
| 4″ | 114.3 | 2.11 | 5.90 | 3.05 | 8.45 | 6.02 | 16.24 |
| 5″ | 141.3 | 2.77 | 9.56 | 3.40 | 11.68 | 6.55 | 21.99 |
| 6″ | 168.3 | 2.77 | 11.42 | 3.40 | 13.97 | 7.11 | 28.55 |
| 8″ | 219.1 | 2.77 | 14.93 | 3.76 | 20.17 | 8.18 | 42.98 |
| 10″ | 273.1 | 3.40 | 22.84 | 4.19 | 28.07 | 9.27 | 60.92 |
| 12″ | 323.9 | 3.96 | 31.56 | 4.57 | 36.35 | 9.53 | 74.63 |
| 14″ | 355.6 | 3.96 | 34.69 | 4.78 | 41.77 | 9.53 | 82.15 |
| 16″ | 406.4 | 4.19 | 41.98 | 4.78 | 47.82 | 9.53 | 94.21 |
| 18″ | 457.2 | 4.19 | 47.28 | 4.78 | 53.87 | 9.53 | 106.27 |
| 20″ | 508.0 | 4.78 | 59.92 | 5.54 | 69.34 | 9.53 | 118.33 |
| 22″ | 558.8 | 4.78 | 65.97 | 5.54 | 76.35 | — | — |
| 24″ | 609.6 | 5.54 | 83.36 | 6.35 | 95.42 | 9.53 | 142.45 |
Types Of Stainless Steel ERW Pipe
Browse variants held by our Stainless Steel ERW Pipe stockist in Mumbai.

SS 304 ERW Pipe
- Grade TP304 to ASTM A312
- Utility and process headers
- Sch 5S to Sch 40S walls

ASTM A312 TP316L Welded Pipe
- Mo 2.00 – 3.00% for chlorides
- Carbon capped at 0.035%
- Coastal and chemical duty

Electric Resistance Welded Stainless Steel Tube
- Round mechanical tube to ASTM A554
- Walls from 0.51 mm upward
- Furniture and machine frames

Stainless Steel ERW Square Pipe
- Square section to ASTM A554
- Satin or mirror outer face
- Gates, grills and frames

Rectangular SS ERW Tube
- Flat faces ease frame welding
- Also rolled in SS 202 for indoor décor
- Cut to your drawing length

Large Diameter SS Welded Pipes
- 14″ to 24″ NB sizes
- Sch 5S / 10S for water mains
- Crated to guard bevel ends

Schedule 40 SS ERW Pipe
- 3.91 mm wall at 2″ NB
- Takes NPT threads in small bores
- Compressed air and steam utility

Mirror Polished SS ERW Pipe
- Buffed after grit stages
- Handrails and lobby work
- Film-wrapped per length

EN 10217-7 Welded Stainless Tube
- Steel numbers 1.4306 / 1.4404
- Two test categories to choose
- For EU pressure projects
Shortlist SS 304L ERW Pipe Based On Size, Pressure And Weld Type
Begin by fixing diameter from SS ERW Pipe Sizes. Afterwards, match thickness against operating stress. Schedule 5S serves gravity sewage. Schedule 10S fits dairy plus general plant service. Schedule 40S accepts screwed ends. Through DN 350, ASTM A312 Welded Pipe has a single joint. Massive thick headers often require ASTM A358 EFW Pipe. Tap chips beneath, reaching every topic quickly.
Stainless Steel ERW Pipe Manufacturer in Mumbai Trusted For Nearly Two Decades
Every length stays fully traceable from raw strip through final dispatch.
Choosing Between ERW, EFW and Seamless Stainless Steel Pipe
Current fuses coil borders under pressure without extra metal. See comparison below.
- Edges joined under pressure, no filler
- Seam chemistry matches the strip
- Lowest cost for thin and mid walls
- Plate edges fused by arc welding
- Five classes by filler and radiography
- Chosen for large, heavy-wall lines
- No weld at any production stage
- Preferred for high-pressure spools
- Costlier and slower to source
- Welded pipe cold reduced 35% min
- Weld 100% radiographed before cold work
- Final anneal follows the cold work
SS Welded Pipe Stockist in Mumbai Holding Ready Racks Since 2007
Ahmedabad fabricators pick up Sch 10S lengths without waiting for a mill slot.
ERW Stainless Steel Pipe Chemical Composition
Stainless Steel ERW Pipe supplier in India verifying alloy chemistry per melt.
SS 304 ERW Pipe (TP304)
C 0.08 max, Cr 18.0 – 20.0, Ni 8.0 – 11.0
SS 316 ERW Pipe (TP316, welded)
C 0.08 max, Cr 16.0 – 18.0, Ni 10.0 – 14.0, Mo 2.00 – 3.00
SS 316L ERW Pipe (TP316L)
C 0.035 max, Cr 16.0 – 18.0, Ni 10.0 – 14.0, Mo 2.00 – 3.00
Shared by all four grades
Mn 2.00, Si 1.00, P 0.045, S 0.030 (all max)
ASTM A778 vs A554 vs EN 10217-7 Welded Pipe Standards
Stainless Steel Welded Pipe standards vary by service, so follow design requirements.
Pressure & corrosive service
ASTM A312 / ASME SA312
Annealed welded pipe, no filler, NDE or hydro on every length.
Low & moderate temperature
ASTM A778 Unannealed
3″ to 48″ OD, 1.5 – 12.5 mm wall, used where no heat treatment is needed.
Ornamental & structural
ASTM A554 Mechanical Tube
Round, square or rectangular, up to 16″ OD, 0.51 mm wall and over.
European pressure work
EN 10217-7
Circular welded tube in two test categories, linked to PED 2014/68/EU.
SS Welded Pipe Mechanical Properties
Stainless Steel ERW Pipe strength values tested at ambient conditions after annealing.
485MPa min
Tensile Strength (70 ksi)
170MPa min
Yield Strength (25 ksi)
35% min
Elongation in 2 in., Longitudinal
25% min
Elongation in 2 in., Transverse
Share diameter, thickness, alloy plus length to receive delivered pricing quickly.
ERW SS Pipe HSN Code & GST Rate
Import agents request Stainless Steel ERW Pipe HSN Code before cargo clearance.
Round welded SS pipe
7306 40 00
Square & rectangular welded tube
7306 61 00
Welded SS line pipe for oil / gas
7306 11 00
GST on domestic invoices
18% IGST (9% CGST + 9% SGST)
ASME SA312 TP304L Equivalent Grades Worldwide
Stainless Steel ERW Pipe stockist in India matching overseas material equivalents.
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UNS
S30403
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AISI / ASTM
304L / TP304L
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Werkstoff Nr.
1.4306 / 1.4307
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EN Name
X2CrNi19-11 / X2CrNi18-9
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JIS
SUS 304L
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BS
304S11
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GB/T 20878
022Cr19Ni10
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GOST
03Kh18N11
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SIS
2352
What Moves SS 304 ERW Pipe Price Per Kg
If another Stainless Steel ERW Pipe offer arrived, send details so our team matches rates.
Nickel & Moly
Alloy surcharge • 316 costs above 304
Wall Schedule
More kg per metre • 40S over 10S
Bore Size
Small bores • Higher rate per kg
Surface Finish
Pickled is base • Polish adds cost
Test Scope
IGC, PMI, 3.2 • Billed as extras
Lot Size
Full bundles • Better per-kg rate
EN 10217-7 Welded Pipe Supplier in Bengaluru Offering Full European Compliance Documents
Each MTC shows material designation plus inspection class, simplifying buyer verification.
Stainless Steel Pipe Advantages and Disadvantages in ERW Form
Review Stainless Steel Pipe Advantages and Disadvantages carefully prior to final approval.
Gains
Why ERW wins on most utility and process runs
- CostBelow seamless
- WallEven, from rolled strip
- SeamNo filler metal
- SupplyWide mill base, quicker lead
VS
Limits
Where to switch to seamless or EFW
- SeamNeeds NDE or hydro
- WallsHeavy walls are harder
- CodesSome specs ask seamless
- BoresNot for piston bores
Applications Of ASTM A312 Welded Pipe
SS 304 vs 316 ERW Pipe choice depends on service, since molybdenum resists saline acidic attack.
SS ERW Pipe Quality Checks & Certificates
Stainless Steel ERW Pipe testing plus compliance marks offered beyond basic mill documentation, available upon request.
EU Compliance
CE approved & PED 2014/68/EU approved
Leak Integrity
Hydrostatic or NDE electric test per length
Mechanical Checks
Tension and flattening tests per lot
Weld Decay Check
IGC to ASTM A262 Practice E on request
Alloy Verification
PMI on each length when ordered
Witnessed Certificate
EN 10204 3.2 with inspector sign-off
Stainless Steel ERW Tube Dispatch Timelines
Stainless Steel ERW Pipe lead time begins after signed order acceptance.
- Racked sizes handed over in 2–5 working days
- Polishing or shaping needs extra days
- Load photos shared before the truck leaves
- FCL or LCL booked out of JNPT
- Cheapest route for full bundles
- Port-to-port transit of 5–30 days
- Kept for shutdown spares and samples
- Short lengths boxed to airline limits
- Airway bill copy sent on take-off
- Worked out from your discharge port
- Destination customs time sits on top
- Confirmed in writing with the offer
Electric Resistance Welded SS Pipe Exporter in India Shipping Across Gulf Ports
Sturdy wooden cases protect prepared edges plus bright surfaces during ocean transit.
Road & Sea Coverage
ERW Stainless Steel Pipe Supply Cities & Export Countries
Our Stainless Steel ERW Pipe exporter desk serves these domestic plus overseas destinations.
Buyer Questions On ASTM A312 ERW Pipe
Quick replies covering common Stainless Steel ERW Pipe buyer queries.
What is the stainless steel ERW pipe price per kg?
- It tracks the nickel and molybdenum surcharge on the day
- Grade, schedule, bore, finish and quantity all shift it
- Send your size list and we return a written rate per kg or per metre
Which sizes does the SS ERW pipe size chart cover?
- 1/2″ to 24″ NB, from 21.3 mm to 609.6 mm OD
- Sch 5S, Sch 10S and Sch 40S walls per ASME B36.19M
- 22″ NB is listed in Sch 5S and 10S only
What is the SS 304 ERW pipe specification and schedule chart?
- ASTM A312 TP304: 515 MPa tensile and 205 MPa yield, minimum
- 2″ NB wall: 2.77 mm in Sch 10S, 3.91 mm in Sch 40S
- A 6 m length of 2″ Sch 40S weighs about 32.9 kg
What is the HSN code for stainless steel ERW pipe?
- Round welded stainless pipe falls under 7306 40 00
- Square and rectangular welded tube falls under 7306 61 00
- GST is 18% as currently notified
Is your SS ERW pipe CE and PED approved?
- Yes, pressure lots ship CE approved and PED 2014/68/EU approved
- Supplied with an EN 10204 3.1 certificate, or 3.2 on request
- Mention PED on your enquiry so we allocate the right lot





