Heer Fittings is a Delhi, India-based manufacturer and supplier of Stainless Steel 304L Buttweld Fittings. We are engaged in producing high-strength, low-carbon stainless steel fittings that offer superior weldability and resistance to corrosion. SS 304L is a low-carbon version of 304 and is suitable for welding applications where annealing after welding is not possible. Our buttweld fittings are made according to national and international specifications and are reliable across industries for their dependability and longevity. Heer Fittings provides SS 304L fittings to industries like chemical processing, pharma, food processing, water treatment, and construction in India and worldwide.
| 304 / 304L Pipe Fittings Specifications | ASTM A403/ ASME SA403 |
|---|---|
| 304 / 304L SS Pipe Fittings size | 304 / 304L Seamless Butt Weld Fittings : 1/2″ – 10″ 304 / 304L Welded Butt Weld Fittings : 1/2″ – 48″ |
| SS 304 / 304L Pipe Fittings Dimensions | ASME/ANSI B16.9, ASME B16.28, MSS-SP-43, BS4504, BS4504, BS1560, BS10 |
| Stainless Steel 304 / 304L Buttweld Fittings Thickness | SCH10, SCH20, SCH30, STD SCH40, SCH60, XS, SCH 80, SCH 100, SCH 120, SCH 140, SCH 160, XXS available with NACE MR 01-75 |
| 304 / 304L Buttweld Pipe FittingsType | DN15-DN1200 |
| ASTM A403 304 / 304L Buttweld Fitting Connection | Welding |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom ASTM A403 Grade WP304 / 304L Pipe Fitting |
| Size Range | ½” NB to 24″ NB in Sch 10s, 40s, 80s, 160s, XXS. (DN6~DN100) ASTM A403 WP 304 / 304L Buttweld Fitting |
| ASTM A403 WP304 / 304L Buttweld Fittings Manufacturing process | Push, Press, Forge, Cast, etc. |
| 304 / 304L Stainless Steel Buttweld Pipe Fittings Test Certificates | EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc |
| SA 403 WP304 / 304L Pipe Fittings Origin & Mills | Japanese, Indian, USA, Korean, European, Ukraine, Russian |
| Specialized manufacturer of | SS UNS S30400, S30403 90º Elbows, 45º Elbows, Tees, Cross, Reducer, Pipe Cap, Stub End, Pipe Bend |
| We provide Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2, Test Certificates certifying NACE MR0103, NACE MR0175 | |
Stainless Steel 304L Buttweld Fittings consist of chromium (18-20%), nickel (8-12%), and a maximum amount of carbon as 0.03%, while the rest is iron. The lower carbon content reduces the chances of carbide precipitation during welding, improving corrosion resistance, particularly in welded components. SS 304L possesses a tensile strength of around 485 MPa, yield strength of 170 MPa, and elongation of around 40%. It also possesses excellent mechanical properties and ductility under cryogenic conditions. This makes it extremely suitable for use where corrosion resistance and high weldability are a requirement.
| Grade | C | Mn | Si | P | S | Cr | Ni |
| 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 | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 304 / 304L | 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Heer Fittings is a leading supplier of Stainless Steel 304L Buttweld Fittings in Delhi, India. We offer an extensive range of Stainless Steel 304L Buttweld Fittings, renowned for their excellent corrosion resistance and high strength, which makes them perfect for demanding industrial applications like chemical processing, marine environments, and high-temperature systems. With a commitment to quality and reliable delivery, we ensure our clients receive top-tier products tailored to meet the specific needs of various industries.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| SS 304 | 1.4301 | S30400 | SUS 304 | 304S31 | 08Х18Н10 | Z7CN18‐09 | X5CrNi18-10 |
| SS 304L | 1.4306 / 1.4307 | S30403 | SUS 304L | 3304S11 | 03Х18Н11 | Z3CN18‐10 | X2CrNi18-9 / X2CrNi19-11 |
Stainless Steel 304L Buttweld Fittings from Heer Fittings offer exceptional corrosion resistance, especially in seawater and harsh environments. They are known for their high strength, durability, and resistance to pitting and crevice corrosion, ensuring long-lasting performance. We provide precise manufacturing, quality control, and reliable service for diverse industrial applications.
| NOMINAL PIPE SIZE | ALL FITTINGS | ALL FITTINGS | 180 DEG RETURN BENDS | REDUCERS | ELBOWS AND TEES | 180 DEG RETURN BENDS | CAPS |
| NPS | ID at End (1), (3), (4) | OD at Bevel (1), (2) | Centre-to- Centre O | Overall Length H | Centre -to- End Dimension A, B, C, M | Alignment of Ends U | Overall Length E |
| ½ to 2½ | 0.003 | 0.006 -0.003 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 3 to 3 ½ | 0.006 | 0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 4 | 0.006 | 0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.012 |
| 5 to 8 | 0.006 | 0.009 -0.006 | 0.025 | 0.006 | 0.006 | 0.003 | 0.025 |
| 10 to 18 | 0.012 | 0.016 -0.012 | 0.038 | 0.009 | 0.009 | 0.006 | 0.025 |
| 20 to 24 | 0.019 | 0.025 -0.019 | 0.038 | 0.009 | 0.009 | 0.006 | 0.025 |
| 26 to 30 | 0.019 | 0.025 -0.019 | … | 0.019 | 0.012 | … | 0.038 |
| 32 to 48 | 0.019 | 0.025 -0.019 | … | 0.019 | 0.019 | … |
Yes, custom sizes for Stainless Steel 304L Buttweld Fittings are available at Heer Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@heerfittings.com.
Stainless Steel 304L Buttweld Fittings find extensive application in those industries where there is a need for high weld integrity and superior corrosion resistance. The applications include chemical plants’ piping systems, food and beverage processing plants, manufacturing of pharmaceuticals, dairy plants, and water treatment plants. They are also applied in marine and architectural elements where durability and cleanliness are essential. SS 304L is particularly well-suited for systems where welding and forming occur frequently, as it minimizes the risk of intergranular corrosion. Its hygienic nature, ease of fabrication, and cost savings make it a favorite material for sanitary and structural piping systems.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.








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