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SCH 5S, 10S, 40S, 80S, STD, XS
Thin-wall sanitary to heavy process duty
1/8" to 16" inches
Every schedule, ex-stock – ready to cut
ASTM A312 / ASME SA312 TP304 – UNS S30400
Same spec trusted by Jindal, Outokumpu & Sandvik buyers
PE, BE, 2B, No.4 Polished, BA
Ready for field welding, sanitary or architectural use
18Cr – 8Ni Austenitic Stainless
Equivalent to WNR 1.4301 / JIS SUS304
Seamless & Welded (ERW/EFW)
Solution annealed & pickled for consistent corrosion resistance
48-Hour Quote Desk
Size, schedule & finish priced fast
PED 2014/68/EU
EU pressure equipment compliant
Every Finish, Ex-Stock
2B, No.4, BA & electropolished
Mill-Direct Pricing
Stockist rates, zero broker markup
80+ Countries Served
GCC, Africa & Americas covered
Dual Certified TP304/304L
One heat, both grade options
📌 Table of Content
Aesteiron Steels LLP understands that buyers searching for Stainless Steel 304 Pipe don't want to wait three weeks for a mill quotation – they want immediate confirmation that the required size, schedule and finish is physically available and ready to ship. That's why Aesteiron maintains SS 304 Pipe inventory across the entire NPS range, in both seamless and welded construction, allowing every confirmed order to move directly into cutting and packing without production delays.
Recognized globally under various names – AISI 304, UNS S30400, SUS 304 or the European equivalent WNR 1.4301 – this 18Cr-8Ni austenitic stainless steel offers dependable resistance against food-grade acids, mild chemical environments and standard atmospheric conditions. Aesteiron's SS 304 Pipe is widely trusted across dairy processing, pharmaceutical manufacturing, architectural design and general industrial piping applications worldwide.
From its Mumbai-based stockyard, Aesteiron ships every SS 304 Pipe order to buyers across the Middle East, Africa and the Americas complete with dual ASTM/ASME certification, PMI verification and EN 10204 3.1 or 3.2 mill test certificates – giving EPC contractors and MRO procurement teams the confidence to skip the extended lead times typically associated with fresh-cast material.
Stainless Steel 304 Pipe: Key Specifications for Standard, Size, Length and Finish
As a source verified Stainless Steel 304 Pipe Stockist in Mumbai we stock only from certified mills with approved composition.
| Grade | C % (max) | Mn % (max) | Si % (max) | Cr % | Ni % | P (max) | S (max) | N (max) |
|---|---|---|---|---|---|---|---|---|
| ASTM A312 TP304 | 0.08 | 2.00 | 1.00 | 18.0–20.0 | 8.0–10.5 | 0.045 | 0.030 | 0.10 |
Based on ASME B31.1/B31.3 allowable stress at design temperature – for quick field reference only.
Fixed outer diameter per pipe size, with wall thickness varying by schedule for the sizes shown below.
| OD (mm) | WT (mm) | inch | Sch | Kg/m |
|---|---|---|---|---|
| 114.30 | 13.492 | 4 | 160 | 34.05 |
| 17.15 | 2.31 | 3/8 | 40S | 0.86 |
| 26.67 | 2.11 | 3/4 | 10S | 1.30 |
| 73.03 | 7.01 | 2½ | 80S | 11.59 |
| 21.34 | 2.11 | 1/2 | 10S | 1.02 |
| 168.28 | 10.97 | 6 | 80S | 43.21 |
| 42.16 | 3.56 | 1¼ | 40S | 3.44 |
| 13.72 | 1.65 | 1/4 | 10S | 0.50 |
| 219.08 | 12.7 | 8 | 80S | 65.63 |
| 88.90 | 5.49 | 3 | 40S | 11.47 |
| 141.30 | 9.53 | 5 | 80S | 31.44 |
| 33.40 | 3.38 | 1 | 40S | 2.54 |
| 42.16 | 6.352 | 1¼ | 160 | 5.69 |
| 60.33 | 3.91 | 2 | 40S | 5.52 |
| 48.26 | 3.68 | 1½ | 40S | 4.11 |
| 17.15 | 1.65 | 3/8 | 10S | 0.64 |
| 101.60 | 5.74 | 3½ | 40S | 13.78 |
Every construction type of SS 304 pipe we supply, shown here at a glance.
Share your size, schedule and quantity – Aesteiron replies within 48 hours with a quote, MTC and delivery date.
Common welding methods used to produce SS 304 pipe, based on size and application.
These are the stainless mills Aesteiron stocks direct for, as a Distributor and Stockholder – not a broker.
Jindal Stainless
Outokumpu
Aperam
Acerinox
POSCO
Sandvik (SMT)
Yieh United Steel
Baosteel
Aesteiron stocks the full 1/8″–24″ range across India, with cut-to-length options and fast quote turnaround.
Trusted Stainless Steel 304 Pipe Stockist in Mumbai also stocking cross-referenced international grades.
Our Most Active Delivery Destinations
Wall Thickness & Unit Weight by NPS – Cross-Check Exact Schedule Against Your Drawing.
| NPS | OD (mm) | OD (in) | WT (mm) | WT (in) | Wt (Lb/ft) | Wt (kg/Mtr) |
|---|---|---|---|---|---|---|
| 6″ | 168 | 6.625 | 9.525 | 0.375 | 25.031 | 37.285 |
| 1/2″ | 21 | 0.840 | 2.769 | 0.109 | 0.851 | 1.268 |
| 2″ | 60 | 2.375 | 5.537 | 0.218 | 5.022 | 7.480 |
| 6″ | 168 | 6.625 | 7.112 | 0.280 | 18.974 | 58.263 |
| 3″ | 89 | 3.500 | 5.486 | 0.216 | 7.576 | 11.284 |
| 1 1/4″ | 42 | 1.660 | 3.556 | 0.140 | 2.273 | 3.385 |
| 4″ | 114 | 4.500 | 8.560 | 0.337 | 14.983 | 22.318 |
| 6″ | 168 | 6.625 | 4.775 | 0.188 | 12.924 | 19.252 |
| 1 1/2″ | 48 | 1.900 | 3.683 | 0.145 | 2.718 | 4.048 |
| 2 1/2″ | 73 | 2.875 | 5.516 | 0.203 | 5.793 | 8.629 |
| 6″ | 168 | 6.625 | 6.350 | 0.250 | 17.021 | 25.354 |
| 3/4″ | 27 | 1.050 | 2.870 | 0.113 | 1.131 | 1.684 |
| 1/2″ | 21 | 0.840 | 3.734 | 0.147 | 1.088 | 1.621 |
| 6″ | 168 | 6.625 | 5.563 | 0.219 | 14.983 | 22.318 |
| 1″ | 33 | 1.315 | 3.378 | 0.133 | 1.679 | 2.501 |
| 4″ | 114 | 4.500 | 6.020 | 0.237 | 10.790 | 16.073 |
| 1 1/4″ | 42 | 1.660 | 4.851 | 0.191 | 2.997 | 4.464 |
| 6″ | 168 | 6.625 | 10.973 | 0.432 | 28.573 | 42.561 |
| 3″ | 89 | 3.500 | 7.620 | 0.300 | 10.253 | 15.272 |
| 2″ | 60 | 2.375 | 3.912 | 0.154 | 3.653 | 5.441 |
| 2 1/2″ | 73 | 2.875 | 7.010 | 0.276 | 7.661 | 11.411 |
| 1 1/2″ | 48 | 1.900 | 5.080 | 0.200 | 3.361 | 5.409 |
| 6″ | 168 | 6.625 | 7.925 | 0.312 | 21.036 | 31.334 |
| 3/4″ | 27 | 1.050 | 3.912 | 0.154 | 1.474 | 2.195 |
| 1″ | 33 | 1.315 | 4.547 | 0.179 | 2.172 | 3.325 |
| 6″ | 168 | 6.625 | 5.516 | 0.203 | 13.923 | 20.739 |
| 6″ | 168 | 6.625 | 12.700 | 0.500 | 32.708 | 48.719 |
Send your size list and get a heat-wise weight sheet along with your quote.
Minimum mechanical values for this grade – cross-check with your project's data sheet.
As a reputed Stainless Steel 304 Pipe Exporter we ship pipes with excellent density and melting range.
Approx. 16.2 W/m·K at 100°C
8.00 g/cm³
Approx. 1400–1450°C
Approx. 193 GPa (28,000 ksi)
Being a trusted Stainless Steel 304 Pipe Exporter we ensure precise wall thickness and OD tolerance on every order.
Key properties that make this austenitic grade the industry default.
18Cr-8Ni composition resists oxidation, food acids and most chemical exposure.
Readily formed, cut and welded without specialized equipment.
Handles structural and pressure loads without excess material.
Performs reliably from sub-zero cryogenic to high-heat process duty.
Non-porous surface suits dairy, pharma and food-grade applications.
100% recyclable material with strong long-term value retention.
As a well-documented Stainless Steel 304 Pipe Stockist in Mumbai our stock comes with verified test certification on record.
Mill Test Certificate (MTC 3.1/3.2)
PMI Testing
Intergranular Corrosion Test
Ultrasonic Test
Hydrostatic Test
Radiography
Visual & Dimensional Inspection
Chemical / Spectro Analysis
Our stock comes from manufacturers following standard production methods.
EAF melting with AOD refining, then continuous casting into billet or slab.
Billet pierced for seamless; slab hot-rolled, slit, formed & seam-welded for welded pipe.
Pipe drawn or sized to exact OD and wall thickness for tighter tolerances.
Heated above 1040°C and rapidly cooled to restore ductility and corrosion resistance.
Acid bath removes scale and rebuilds the passive chromium oxide layer.
PMI, hydrostatic and dimensional checks completed before packing and shipment.
Being a quality-focused Stainless Steel 304 Pipe Supplier in India we verify hardness on every batch before delivery.
Max. 92 HRB in annealed condition.
Approx. 201 HB (3000 kgf load).
Approx. 210 HV (10 kgf load).
Rises to 250–350 HB after cold drawing.
Finish choice depends on end-use, hygiene needs and visibility after install.
Ultra-smooth ID surface preferred for pharma & biotech lines.
Acid-pickled to remove scale, light oil film for transit protection.
Cold rolled, annealed & pickled – the default ex-stock finish.
Sa 2.5 blast finish for site handling on structural applications.
Directional satin polish for architectural and kitchen equipment.
Smooth, reflective finish for sanitary and decorative use.
Being an efficient Stainless Steel 304 Pipe Supplier in India we pack pipes securely to prevent damage during delivery.
Cut-To-Length Bundles
PVC End Caps
Wooden Crate / Bundle Wrap
Anti-Rust VCI Wrap
Being an organized Stainless Steel 304 Pipe Supplier in India we mark every pipe for easy traceability and identification.
Its corrosion resistance and hygienic surface make it a fit across a wide range of sectors.
Food Processing Equipment
Pharmaceutical & Biotech
Chemical Containers & Tanks
Architectural Applications
Heat Exchangers
Railway Cars & Trailers
Marine & Offshore
HVAC & Refrigeration
Strength, hygiene and lifespan are steadily shifting buyers away from plastic toward SS 304.
Send your drawing and we'll match the right SS 304 size and schedule.
Reference codes used for import/export documentation and domestic invoicing.
Aesteiron maintains SS 304 Pipe stock sourced from leading global producers, distributed across regional warehouses in the Middle East, Africa and the USA. As one of India's foremost Stainless Steel Pipe Stocking Distributors, we keep consistent 304 inventory on hand to prevent supply gaps and delivery holdups.
HS Code 7304.41 (seamless) / 7306.40 (welded) used across most importing customs authorities, confirm local tariff schedule before shipmentHS Code
Stockholder for Outokumpu & Yieh United Steel SS 304 PipeStockholder
Distributor for Jindal Stainless & Sandvik SS 304 PipeDistributor
Stockholder for Baosteel & Acerinox SS 304 PipeStockholder
Supplier of Aperam & POSCO SS 304 PipeSupplier
Stocking Distributor for Jindal Stainless & POSCO SS 304 PipeDistributor
Stockist for Sandvik & Outokumpu SS 304 PipeStockist
Supplier of Jindal Stainless & Baosteel SS 304 PipeSupplier
Stockist of Jindal Stainless & Sandvik SS 304 PipeStockist
Stockholder for Acerinox & Aperam SS 304 PipeStockholder
Stocking Distributor for Outokumpu & Aperam SS 304 PipeDistributor
Authorised Stockist of Jindal Stainless & Kobe Steel SS 304 PipeStockist
Stockist for Jindal Stainless & Sandvik SS 304 Welded PipeStockist
Supplier of Baosteel & Tsingshan SS 304 PipeSupplier
Share your destination and quantity – we'll confirm shipping mode and lead time.
Recent Stainless Steel 304 Pipe supply projects delivered to EPC contractors and plant operators worldwide.
ASTM A312 TP304 Pipe supplied for refinery process lines, third-party inspected, EN 10204 3.2 MTC.
ASTM A312 TP304 Pipe
MIDOR REFINERY, EGYPTSS 304 Round Pipe supplied for calcium chloride process equipment, PMI verified on every heat.
SS 304 Round Pipe
INOCHEM, SAUDI ARABIASS 304 Seamless Pipe supplied for process piping upgrade, PMI & hydro tested, EN 10204 3.1 MTC.
SS 304 Seamless Pipe
JUBAIL, SAUDI ARABIASS 304 Sanitary Pipe supplied for hygienic process lines, BA finish, EN 10204 3.1 MTC.
SS 304 Sanitary Pipe
JOHANNESBURG, SOUTH AFRICAASTM A312 TP304 Welded Pipe supplied for tank & transfer line piping, PMI & hydro tested, dual certified.
ASTM A312 TP304 Welded Pipe
HOUSTON, USASS 304 Welded Pipe supplied for HVAC & chilled water lines, EN 10204 3.1 MTC, PMI tested.
SS 304 Welded Pipe
DUBAI, UAE316 adds Molybdenum for better chloride resistance; 304 is a lower-cost, general-purpose grade.
304L has lower carbon, reducing weld sensitisation – better for heavy fabrication.
EN 10204 3.1 as standard; 3.2 available on request.
Stock sizes in 2 days; bulk/custom orders take 5–8 weeks.
Up to 870°C (1600°F); strength drops above 425°C.
Why Aesteiron?
Tools & Downloads
Conclusion
Stainless Steel 304 Pipe, dual-certified to ASME SA312 under UNS S30400, remains the default choice wherever buyers need dependable corrosion resistance across food, pharma, chemical and architectural piping. Buyers across the Middle East, Africa and the Americas trust Aesteiron Steels LLP as one of the most responsive Stainless Steel 304 Pipe suppliers for quick quotes.
Quick form – quote in 2 hours.
