Metinox Overseas is a trusted Stainless Steel 304L EFW Pipe Manufacturer, which offers low-carbon piping systems to high-risk welding. The Stainless Steel 304L EFW Pipe is produced to remove carbide precipitation in the welding process, thus it is more preferred in heavy-gauge components. This grade is a Low Carbon form of the standard SS 304 EFW pipe that is manufactured in accordance with ASTM A358 standards. It has the same corrosion resistance as 304 but much better in the condition of as-welded. Suitable to the chemical, fertilizer and petrochemical industries, 304L EFW pipes can accommodate the hostile environments without the danger of intergranular corrosion. Its mechanical properties are tensile strength of 485 MPa and a yield strength of 170 Mpa. Metinox Overseas is a major supplier of fabrication hence providing custom fabrication where such pipes are customized to suit given pressure and temperature requirements. Our 304L model is also highly exported to Europe and USA as an oil refinery and industrial wastewater treatment. When you purchase at Metinox, you will be buying a product that meets the needs of being cost-effective and yet provides the highest performance that is metallurgically steady at a global level.
Table of Contents
- Stainless Steel 304L EFW Pipe Manufacturer and Supplier
- Stainless steel 304L EFW Pipes Properties
- Certifications
- Stainless Steel 304L EFW Pipe Specification
- Stainless Steel UNS S30403 EFW Pipes Equivalent Grades
- 304L Stainless Steel EFW Pipes Chemical Composition
- ASME SA312 SS TP304L EFW Pipes Mechanical Properties
- SS 304L EFW Applications and Uses
- Why Choose Metinox Overseas?
- Export Destinations - USA, Europe, Middle East, LATAM
- SS 304L EFW Pipe Delivery Time & CIF Pricing by Country
- Other types of EFW Pipes
- Supplier and Exporter of Stainless Steel 304L EFW Pipes in Cities of India Like
- Supplier and Exporter of Stainless Steel 304L EFW Pipes in Countries Like
- Frequently Asked Questions (FAQ)
Stainless steel 304L EFW Pipes Properties
The SS 304L EFW Pipes are popular in the commercial industries due to various properties that the product possesses. The following features are mentioned-
- Corrosion protection
- Extreme strength
- Resistant to oxidation
- Temper strengthened
- Low-temperature functionality
- Ductility
Certifications of SS 304L EFW
According to the demand and satisfaction of the clients, various documents are attached with the supplied product. All the required documents are also offered to our customers. The documents provided are-
- Radiography test reports
- Traceability of materials list
- Fumigation certificate
- Commercial invoice
- Raw material test reports
Stainless Steel 304L EFW Pipe Specification
| Parameter | Details |
| Specifications | ASTM A312/ ASME SA312 |
| EFW Pipes | 6" NB - 24" NB |
| Outside Diameter | 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 |
| Thickness Range | 0.3mm � 50 mm, SCH 5, SCH10, SCH 40, SCH 80, SCH 80S, SCH 160, SCH XXS, SCH XS |
| Type | EFW |
| Form | Round Pipes, Square Pipes, Rectangular Pipes |
| Length | Single Random, Double Random & Required Length |
| End | Plain End, Beveled End, Treaded |
| Outside Finish | 2B, No.4, No.1, No.8 Mirror Finish for Stainless Steel Pipes, Finish as per customer Requirements |
| Delivery Condition | Annealed and Pickled, Polished, Bright Annealed, Cold Drawn |
| EN 10216-5 | EN 10216 304L EFW Steel Pipe, EN 10216-5 1.4306 / 1.4307 EFW Steel Pipes for pressure purposes |
| EN 10217-7 | EN 10217 304L Welded Steel Pipe, Steel EN 10217-7 1.4306 / 1.4307 Welded Pipes for pressure purposes |
Stainless Steel UNS S30403 EFW Pipes Equivalent Grades
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | GOST |
| SS 304L | S30403 | 1.4306 / 1.4307 | Z3CN18-10 | X2CrNi18-9 / X2CrNi19-11 | SUS 304L | 3304S11 | 03?18?11 |
304L Stainless Steel EFW Pipes Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304L | 0.035 max | 2.0 max | 1.0 max | 0.045 max | 0.03 max | 18 � 20 | - | 8 � 13 | - |
ASME SA312 SS TP304L EFW Pipes Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
| SS 304L | 485 | 170 | 40 | 92 | 201 |
SS 304L EFW Applications and Uses
The 304L EFW (Electric Fusion Welded) Stainless Steel Pipes offer more advantages as the large-diameter piping systems that need heavy-section welding. This grade is low-carbon in chemistry and thus it is specifically made to reduce the precipitation of carbide during welding to maintain the integrity of the structure in high-stress conditions.
Chemical & Petrochemical Processing
Superior for transporting corrosive fluids, acids, and industrial chemicals, especially in large bore pipelines where seamless pipes are not cost-effective.
Wastewater Treatment / Desalination
ASTM A358 TP304L offers excellent corrosion resistance, making it ideal for municipal sewage lines, water filtration, and desalination systems.
Cryogenic Applications
304L maintains high toughness and ductility at low temperatures, making these EFW pipes suitable for liquid gas transportation and cryogenic storage tanks.
Power Generation
Applied in cooling water circuits, steam lines, and condensation systems in both thermal and nuclear power plants.
Pulp & Paper Industry
Used in bleaching departments and digesters where resistance to organic and inorganic chemicals is critical.
Oil & Gas Refineries
Essential for downstream oil and gas refining processes requiring high-quality, large-diameter welded fusion pipes.
Marine & Offshore Engineering
Applied in ballast systems and offshore structural piping due to strong resistance against tea staining and atmospheric saltwater corrosion.
Why Choose Metinox Overseas?
Metinox Overseas is one of the leading manufacturers of SS 304L EWF Pipe, which provides a set of technical accuracy and international supply chain stability.
- Niobium-Stabilized Low Carbon Mastery: We assure you that our 304L pipes will have less than 0.035% carbon content which ensures that your welded joints will not have intergranular corrosion.
- State of the art ASTM A358 Compliance: Our plant is capable of producing EFW pipes in all classifications (Class 1 through 5) which can ensure 100 percent X-ray tested welds in case of a critical high-pressure pressure.
- Large Diameter Customization: We manufacture large-bore piping with a 6" NB to 100" NB, and with some of the normal wall thicknesses and schedules (including SCH 160 and XXS), which can be tailored to meet the project blueprints.
- Global Quality Certification: Mill Test Certificates (MTC) are included with all the batches of Stainless Steel 304L Electric Fusion Welded pipes according to EN 10204 3.1/3.2, having complete traceability of materials.
- Technological Precision: With the high-energy electron beam and fusion welding technologies, we manufacture pipes with a smooth internal surface, which decreases the turbulence and the losses due to friction in fluids.
- Extensive Testing: In addition to the regular testing, we also have additional tests like Hydrostatic, PMI and Intergranular Corrosion (IGC) tests (Practice A/E) where we test the metallurgical stability.
Looking for High-Quality SS 304L EFW Pipes?
Choose Metinox Overseas � Your Reliable SS 304L EFW Pipe Manufacturer & Exporter.
Let us support your projects with quality, precision, and performance.
Export Destinations - USA, Europe, Middle East, LATAM
We are a major exporter of SS 304L EFW steel pipes to high-consumption regions:
- Middle East: UAE, Saudi Arabia (Riyadh, Jubail), Qatar, Oman, Kuwait.
- Americas (LATAM & USA): USA (Houston, Texas), Brazil, Mexico, Argentina, Canada.
- Europe: Germany, Italy, UK, Netherlands, Belgium.
- Asia & Africa: Singapore, Malaysia, South Africa, Nigeria, Egypt.
SS 304L EFW Pipe Delivery Time & CIF Pricing by Country
Metinox Overseas has developed an effective international logistics network that has enabled the company to ship ASTM A358 TP304L EFW Pipes to its clients within the globe in good time. We have INCOTERs that are flexible and can be customized to suit your buying requirements like CIF (Cost, Insurance and Freight), FOB (Free on Board), CFR (Cost and Freight) and DDP ( Delivered Duty Paid). We also have strategic partnerships with shipping lines and other freight forwarders and this provides us with competitive freight tariffs and solid transit time to all the major ports in the world.
| Destination Region | Major Ports / Cities | Estimated Delivery Time | Typical CIF Terms |
| Middle East (GCC) | Dubai (Jebel Ali), Dammam, Doha, Muscat, Kuwait | 7 - 10 Days | CIF Dubai / CIF Dammam / CIF Doha |
| Europe | Rotterdam, Hamburg, Antwerp, Southampton, Genoa | 20 - 25 Days | CIF Rotterdam / CIF Hamburg |
| USA & Canada | Houston, New York, Los Angeles, Long Beach, Vancouver | 25 - 30 Days | CIF Houston / CIF New York / CIF LA |
| Latin America (LATAM) | Santos (Brazil), Veracruz (Mexico), Buenos Aires, Callao | 30 - 35 Days | CIF Santos / CIF Veracruz |
| Southeast Asia | Singapore, Port Klang, Bangkok, Manila, Jakarta | 10 - 15 Days | CIF Singapore / CIF Port Klang |
| Africa | Lagos, Durban, Mombasa, Dar es Salaam, Alexandria | 15 - 20 Days | CIF Lagos / CIF Durban |
Note: The delivery time is estimated and will depend on schedules of shipping lines, port congestion, and custom clearance processes. On urgent demands, we provide air freight services and deliver in 5-7 days at the leading international airports. Request our export division to get tailor-made solutions to logistics and updated CIF price of SS 304L EFW Pipes, SS 304L Welded Pipes and SS 304L Large Diameter Pipes.
Other types of EFW Pipes
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Supplier and Exporter of Stainless Steel 304L EFW Pipes in Cities of India Like
Navi Mumbai, Vadodara, Kuala Lumpur, Noida, Hyderabad, Ranchi, Karachi, Houston, Chandigarh, Ahvaz, Colombo, Bengaluru, London, Singapore, Thiruvananthapuram, Edmonton, Bangkok, Hanoi, Rio de Janeiro, Melbourne, Jaipur, Moscow, Doha, Ulsan, Santiago, Tehran, Nashik, Cairo, Perth, Visakhapatnam, Jakarta, Mumbai, Coimbatore, Madrid, Kuwait City, Geoje-si, Toronto, Dammam, Rajkot, Granada, Petaling Jaya, New Delhi, Caracas, Lagos, Abu Dhabi, Chennai, Sharjah, Howrah, Bhopal, Surat, Ankara, Jamshedpur, Secunderabad, Mexico City, Dubai, Muscat, Pune, Aberdeen, Ludhiana, Baroda, Seoul, Algiers, Lahore, Busan, Gurgaon, Indore, Dallas, Sydney, Ernakulam, Bogota, Manama, Istanbul, Thane, Courbevoie, Chiyoda, Milan, Ahmedabad, Al Khobar, Gimhae-si, La Victoria, Los Angeles, Ho Chi Minh City, Nagpur, Pimpri-Chinchwad, Faridabad, Brisbane, Calgary, Vung Tau, Haryana, Al Jubail, Riyadh, Jeddah, Hong Kong, Port-of-Spain, Montreal, New York, Atyrau, Kanpur, Kolkata.
Supplier and Exporter of Stainless Steel 304L EFW Pipes in Countries Like
Malaysia, Iran, Indonesia, Gabon, Bhutan, Chile, Hungary, Libya, Norway, Romania, Belarus, Lithuania, Morocco, Iraq, Czech Republic, Kuwait, Mexico, Bulgaria, Mongolia, Sweden, Austria, Zimbabwe, Nigeria, Peru, Croatia, United Arab Emirates, Ireland, United States, Saudi Arabia, Denmark, Namibia, Brazil, Serbia, Kazakhstan, Trinidad & Tobago, India, Poland, Ukraine, Ecuador, Slovakia, Bolivia, Finland, Germany, China, Mexico, Pakistan, Philippines, South Korea, Hong Kong, Jordan, Canada, Italy, New Zealand, Lebanon, Netherlands, Kenya, Russia, Argentina, Angola, Macau, Afghanistan, Ghana, Colombia, Estonia, Algeria, Australia, Gambia, Poland, Switzerland, France, Nigeria, Bangladesh, United Kingdom, Egypt, Israel, Spain, Vietnam, Sri Lanka, Yemen, Japan, Tunisia, Chile, Puerto Rico, Greece, Bahrain, Singapore, Qatar, Thailand, Tibet, Azerbaijan, Turkey, South Africa, Iran, Belgium, Portugal, Taiwan, Nepal, Oman, Venezuela, Costa Rica.
Frequently Asked Questions (FAQ)
L is Low Carbon (max 0.035%). The main benefit is that SS 304L EFW pipes do not experience sensitization (formation of carbide at the boundary of the grains) when welding. This causes them to be much more resistant to intergranular corrosion in the as-welded condition than normal 304.
ASTM A358 defines 5 classes. Class 1 has to include a double welding and 100 percent radiology. Class 2 involves two times of welding and no radiography. Class 3 is single welded with 100 percent radiograph and Class 4 and 5 are various intensities of welding and radiographs. Metinox Overseas deals with Class 1 and Class 2 of high pressure service.
Yes. The pipes of EFW are manufactured using the plates that are made of quality pressure vessels. When they are produced to Class 1 standards (100% X-ray) the ability to withstand the high-pressure fluids and steam of industrial power plants and refineries is complete.
Although it is always desirable to have seamless pipes with a very high pressure, EFW pipe with weld joint efficiency of 1.0 (achieved with 100% radiography) has been found to have the same design strength in most industrial applications, often at significantly reduced cost at large diameters.
We have a variety of 6" NB, 100" NB. The EFW pipes are fabricated of plates, thus we can provide any outside diameter and wall thickness practically, and we can provide heavy-walled pipes up to over 50mm.
Absolutely. We also collaborate with other agencies such as TUV, DNV, Lloyds and SGS to verify our pipes of SS 304L EFW through independent verification on the basis of projects of the clients.
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