Metinox Overseas is a leading manufacturer of Stainless Steel 904L EFW Pipe manufacturer producing super austenitic products that offer solutions to the most corrosive conditions. Our Stainless Steel 904L EFW Pipe is a high alloy grade that contains large quantities of nickel, chromium and molybdenum, with the addition of copper to give it the outstanding resistance to strong reducing acids such as sulfuric acid. 904L, produced according to the ASTM A358 standard, is much more resistant to stress corrosion cracking and pitting than 316L EFW pipes. These pipes are important in the chemical processing, pulp and paper industry and pharmaceutical industry where phosphoric and acetic acids exist. Thanks to the Electric Fusion Welding process we can make heavy-wall 904L pipes that can withstand the pressure due to the metallurgical integrity. The Middle East (Saudi Arabia/UAE) has experienced an increase of 4.7% in steel used in desalination and fertilizer plants in the same year (2026) which has contributed a considerable demand of 904L. Metinox Overseas makes sure that our stock of 904L has been of the top international standards in the USA and Europe and in the LATAM markets.
Table of Contents
- Stainless Steel 904L EFW Pipe Manufacturer and Supplier
- More About SS 904L EFW Pipes
- Stainless Steel 904L EFW Pipe Specification
- Stainless Steel UNS N08904 EFW Pipes Equivalent Grades
- 904L Stainless Steel EFW Pipes Chemical Composition
- ASME SA312 SS TP904L EFW Pipes Mechanical Properties
- Other types of Stainless Steel 904L EFW Pipes
More About SS 904L EFW Pipes
The 904L Stainless steel properties of the SS 904L EFW Pipes- ASME SA312 are known to resist the warm seawater and the chloride attack exceptionally. Piping also possesses varying resistance to oxidations and is heated to 1090 degree to 1175 degree C. the pipes are also good to weld and form easily. The Grade 904L Stainless steel EFW Pipes Welding is performed with the aid of all the traditional methods. The EFW pipes are machined all in the normal ways and techniques.
We produce the SS 904L EFW Pipes by ensuring that we do not exceed caution of the alloy such that there are no harmful particles in the developing process. The process involves all professional experts. All the quality standards, consideration with the national and international standards are adhered to during the production of the Stainless Steel 904L EFW Pipes. This is the low carbon variant of the alloy.
We also have a variety of other grades to the pipes including SS 316L pipes that is available in the cheaper options and has way low corrosion resistance. There is also SS 316 Pipes that has better pitting and corrosion resistance capacity. Besides all the above grades, Duplex UNS32205 pipes are also availed.
Stainless Steel 904L EFW Pipe Specification
| 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 904L EFW Steel Pipe, EN 10216-5 1.4539 EFW Steel Pipes for pressure purposes |
| EN 10217-7 | EN 10217 904L Welded Steel Pipe, Steel EN 10217-7 1.4539 Welded Pipes for pressure purposes |
Stainless Steel UNS N08904 EFW Pipes Equivalent Grades
| STANDARD | UNS | WERKSTOFF NR. | AFNOR | EN | JIS | BS | KS |
| SS 904L | N08904 | 1.4539 | Z2 NCDU 25-20 | X1NiCrMoCu25-20-5 | SUS 904L | 904S13 | STS 317J5L |
904L Stainless Steel EFW Pipes Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Cu |
| SS 904L | 0.020 max | 2.00 max | 1.00 max | 0.040 max | 0.030 max | 19.00 � 23.00 | 4.00 � 5.00 max | 23.00 � 28.00 | 1.00 � 2.00 |
ASME SA312 SS TP904L EFW Pipes Mechanical Properties
| Grade | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 904L | Psi � 71000, MPa � 490 | Psi � 32000, MPa � 220 | 35 % |
Other types of Stainless Steel 904L EFW Pipes
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