MERIH STAINLESS, located in Istanbul, Turkey, stands out as a leading manufacturer and supplier of high-quality Stainless Steel EFW Pipes. These pipes are crafted through electric fusion welding, which results in robust longitudinal seams that boast impressive structural integrity. Built to withstand corrosion, offer durability, and ensure precision, these EFW pipes are perfect for demanding applications in industries where strength and reliability are non-negotiable. MERIH STAINLESS guarantees that every pipe adheres to international standards (like ASTM A358 / ASME SA358 and their equivalents) for performance in high temperatures, pressure, and corrosive settings. You’ll find these pipes widely used in chemical processing, petrochemical, power generation, and industrial piping systems.
Stainless Steel EFW Pipes are constructed from premium stainless steel alloys—typically austenitic grades such as 304, 304L, 304H, 316, 316L, 321, and TP321. The chemical makeup generally features chromium (around 16-20%), nickel (approximately 8-14%), and may include alloying elements like molybdenum to enhance pitting resistance. For instance, grades like 304H have a slightly higher carbon content to boost high-temperature strength. Mechanical properties showcase a tensile strength ranging from 485-515 MPa (depending on the grade), yield strength (0.2% proof) between 170-205 MPa, and a minimum elongation of about 40%. Hardness and impact toughness are carefully maintained to ensure reliable performance under operational stress.
| Range : | 1/8” NB to 36” NB, 1/4” OD to 36” OD |
|---|---|
| Outer Diameter : | 6.35 mm O.D to 114.3 mm O.D |
| Thickness : | 0.8 mm to 12.7 mm |
| Length : | up to 26 Meters |
| Specifications : | ASTM A312 / ASTM SA312 |
| Types : | As Welded, EFW, ERW |
| End : | Plain End, Beveled End |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304 | min. max. | – 0.08 | – 2.0 | – 0.75 | – 0.045 | – 0.030 | 18.0 20.0 | – | 8.0 10.5 | – 0.10 |
| 304L | min. max. | – 0.030 | – 2.0 | – 0.75 | – 0.045 | – 0.030 | 18.0 20.0 | – | 8.0 12.0 | – 0.10 |
| 304H | min. max. | 0.04 0.10 | – 2.0 | – 0.75 | -0.045 | – 0.030 | 18.0 20.0 | – | 8.0 10.5 | – |
| Element | SS 304 |
|---|---|
| Density | 8.0 g/cm3 |
| Melting Point | 1400 °C (2550 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 35 % |
| Elongation | 35 % |
Contact us to get a quick quote for your requirement.
We perform high-quality testing on our materials before delivering them to customers. The tests performed are hardness check, chemical analysis, PMI testing, flattening tests, micro and macro examination. All necessary documents such as sales invoice, packing lists, certificates of origin, and a quality assurance letter are provided. For extra peace of mind, customers can ask for third-party inspection reports.
Yes, Stainless Steel EFW pipes can be used for underground applications due to their corrosion resistance, strength, and durability, making them ideal for transporting fluids and gases in harsh environments.
To select the right Stainless Steel EFW pipes, consider factors like the material grade, pipe size, pressure requirements, environmental conditions, and compatibility with the substances being transported. Consult with an expert if needed.
Stainless Steel EFW pipes are sized based on their nominal diameter (ND) and wall thickness, which determine their strength, pressure capacity, and suitability for various applications. Standard sizing follows industry specifications.
Common grades of stainless steel used in EFW pipe manufacturing include 304, 316, 316L, and 321. These grades offer excellent corrosion resistance, strength, and durability for various industrial applications.
Stainless Steel EFW Pipes find their place in industries that require medium to large diameter pipe runs, delivering strong performance even in corrosive or high-temperature environments. Common applications include chemical and petrochemical process plants, oil and gas pipelines, heat exchangers, boiler tubes, and piping systems in power plants.
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