Adarsh Stainless Pvt Ltd supplies stainless steel 304 and 304L pipes and tubes to companies across the process, oil and gas, and pharmaceutical sectors. As a stainless steel 304 pipes manufacturer and stainless steel 304 tubes supplier, the company works with UNS S30400 (SS 304) and UNS S30403 (SS 304L), the low-carbon version of the same grade. SS 304 covers general corrosion-resistant piping needs. SS 304L gets picked when heavy welding is involved, since the lower carbon content holds off carbide precipitation at the weld line. Both grades sit alongside the stainless steel 316/316L pipes & tubes range that Adarsh Stainless also stocks for higher molybdenum requirements. Material is drawn from the pipes and tubes inventory in seamless and welded forms, so plant engineers specifying either grade for a new line do not have to split the order across two vendors.
Pipe production follows ASTM A312 and ASME SA312, with A358 and SA358 used for electric fusion-welded pipe. Tubes are made to ASTM A213, A269, A249, A511 and A554, along with the matching ASME SA specifications. Chromium sits between 18 and 20 percent in both grades. Nickel is approximately 8 to 11 percent in 304 and 8 to 13 percent in 304L. Carbon is capped at 0.08 percent for SS 304 and 0.035 percent for 304L, which is the main functional difference between the two. Tensile strength reaches 515 MPa (75,000 psi), yield strength sits at 205 MPa (30,000 psi), and elongation runs to 40 percent. Density is 8.0 g/cm³, with a melting point close to 1400°C. These figures hold across seamless, welded, and ERW forms, and buyers checking compliance can refer to the company's quality policy for testing and inspection practices.
Table Of Content
Weldability stands out on both grades, along with resistance to pitting in chloride-bearing fluids. 304L handles repeated weld passes without sensitization, which matters in fabrication shops running multiple joints on one line. Corrosion resistance comes from the chromium oxide layer that forms on the surface and self-repairs when scratched or machined during fabrication. As a stainless steel 304L tube manufacturer, output covers instrumentation tubing, heat exchanger tubes, hydraulic lines, and sanitary tubing for food and dairy plants. Pipes go into oil and gas gathering lines, petrochemical piping, offshore structures, and shipbuilding. Both grades hold up under repeated thermal cycling, which is why they show up in power plant piping and refinery units where temperature swings during startup and shutdown put stress on welded joints. Formability is another point worth noting. The strips bend and draw well before welding, so fabricators cutting elbows, U-bends, or coiled tube runs get less scrap from cracking at the bend radius. Buyers pairing these pipes with buttweld fittings or flanges for a complete piping system can source both from the same supplier, which cuts down on cross-referencing heat numbers between two mill certificates.
Outside diameter ranges from 6 mm up to 914.4 mm, with sizes to 24 inch NB kept ex-stock. Wall thickness ranges from 0.3 mm to 50 mm, covering schedules 5, 10, 40, 80, 80S, 160, XS and XXS. Seamless pipe is available from half inch to 16 inch NB; welded pipe extends to 24 inch NB. Surface finish options include 2B, No. 1, No. 4, and No. 8 mirror polish, with custom finishes on request. Supply condition covers plain ends, beveled ends, grooved ends, and threaded ends, in single random, double random, or cut to length. As a stainless steel 304 pipes supplier, stock is held in seamless, welded, ERW, EFW, cold drawn, and 100 percent X-ray welded forms, dispatched with third-party inspection certificates and a mill test report. Full dimension and weight figures are listed on the dimension chart and weight chart pages.
Pipe- ASTM A312, ASME SA312 / ASTM A358, ASME
SA358
Tube- ASTM A213, A269, A249, A511, A554 / ASME
SA213, SA269, SA249, SA511, SA554
Pipe- ANSI/ASME B36.19M, ANSI/ASME B36.10M
6.00 mm OD up to 914.4 mm OD, Sizes up to 24” NB available Ex-stock, OD Size Steel Tubes available Ex-stock
0.3mm – 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS
Seamless Pipe - 1 / 2" NB - 16" NB,
Welded Pipe - 1 / 2" NB - 24" NB,
EFW Pipe - 6" NB - 24" NB
Seamless Tube - 1 / 2" NB - 16" NB,
Welded Tube - 1 / 2" NB - 24" NB
Manufacturing - Seamless / Welded / ERW / EFW
/Fabricated / CDW / 100% X Ray Welded
End Types - Plain Ends, Bevelled Ends, Grooved
Mechanical Joints or Grooved Ends, Treaded One/Both Ends
Round, Square, Hollow, Rectangular, Instrumentation, High Pressure, Cold Rolled Coiled, Electropolish, Heat exchanger, Sanitary etc.
Length - Single Random, Double Random & Required
Length
Outside Finish - 2B, No.4, No.1, No.8 Mirror
Finish, Finish as per customer Requirements
| STANDARD | UNS | WNR. | AFNOR | EN | JIS | BS | GOST |
| SS 304 | S30400 | 1.4301 | Z7CN18‐09 | X5CrNi18-10 | SUS 304 | 304S31 | 08Х18Н10 |
| SS 304L | S30403 | 1.4306/1.4307 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 304S11 | 03Х18Н11 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 13 | – |
| Grade | Density | Melting Point | Tensilee Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 304/304L | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000, MPa – 515 | Psi – 30000, MPa – 205 | 40 % |
Oil & Gas Industrires
Chemical Industries
Construction Industries
Offshore Pipelines & Pipe Works
Petrochemical Industry
Shipbuilding Industries
Hydraulic Applications
Piping Systems
Refining Industry
Food Processing Industry
Pulp & Paper Industry
Power Plant Industry
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