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Home > Stainless Steel >Stainless Steel 316H EFW Pipes
Samia Pipes and Tubes, based in Tunis, Tunisia, is a trusted manufacturer and supplier of high-quality industrial pipes and tubes. Among our premium offerings are Stainless Steel 316H EFW Pipes, engineered for superior corrosion resistance, high-temperature strength, and long-term durability. With higher carbon content than standard 316, these pipes provide improved high-temperature performance while maintaining excellent corrosion resistance. Produced using the Electric Fusion Welding (EFW) process, they offer precise dimensions and structural integrity. Ideal for demanding chemical, petrochemical, and industrial applications, they ensure reliable performance under harsh environments and elevated temperatures.
Stainless Steel 316H EFW Pipes are austenitic stainless steels containing 16–18% chromium, 10–14% nickel, 2–3% molybdenum, and higher carbon content to improve high-temperature strength. Typical tensile strength ranges from 515–720 MPa, with a yield strength of 205–450 MPa and a density of approximately 8.0 g/cm³. The EFW process ensures uniform mechanical properties, excellent dimensional accuracy, and structural integrity. These pipes maintain mechanical stability, high-temperature strength, and corrosion resistance, making them ideal for industrial and chemical applications exposed to aggressive or elevated-temperature environments.
| Specification | ASTM A358 / ASME SA358 |
| Specification | A / SA358 CLASS 1, A / SA358 CLASS 2, A / SA358 CLASS 3, A / SA358 CLASS 4, A / SA358 CLASS 5 |
| Grades | 304, 304L, 304H, 309S, 310S, 316, 316L, 316H, 317L, 321, 321H, 347, 347H, 904L ETC. |
| Type | EFW, ELECTRIC FUSION WELDED |
| Outer Diameter Size | Electric Fusion Welded / ERW- 8″ NB To 110″ NB (Nominal Bore Size) |
| Wall Thickness | Schedule 10 To Schedule 160 (3 mm to 100 mm Thickness) |
| Length | 01 Meter to 12.5 Meters, Single Random Length, Double Random Length And Customize Size. |
| Ends | Plain Ends / Beveled Ends |
| Delivery Conditions | As Rolled, Formed, Stress Relieved, Annealed, Hardened, Tempered |
| Coating | Electropolish, Mechanical Polish, Satin Finish, Passivated |
| Dimension | All Pipes Is Manufactured and Inspected / Tested to the Relevant standards including ASTM and ASME |
| Value Added Services | Draw / Expansion / Machining / Sand Blasting / Shot Blasting / Heat Treatment |
| Packaging | Loose / Bundle / Wooden Pallet / Wooden Box / Plastic Cloth Wraps / Plastic End Caps / Beveled Protector |
| Material Test Certificate | Manufacturer Test Certificate As Per EN10204 3.1, 3.2 / Laboratory Test Certificate From NABL Approved Lab. / Under Third Party Inspection Agency Like SGS, TUV, DNV, LLOYDS, ABS ETC |
| STANDARD | UNS | WERKSTOFF NR. |
| SS 316H | S31609 | 1.4401 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | Fe |
| SS 316H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.030 max | 16.00 – 18.00 | 2.00 – 3.00 | 10.00 – 14.00 | 68.89 min |
| Grade | Tensile Strength | Yield Strength | Elongation |
| SS 316H | Psi – 75000, MPa – 515 | Psi – 30000, MPa – 205 | 35 % |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choosing Stainless Steel 316H EFW Pipes from Samia Pipes and Tubes guarantees excellent corrosion resistance, high strength, and durability. Designed for diverse industrial applications, it delivers reliable performance in tough environments while maintaining competitive pricing for cost-effective solutions.
| NPS Designator | Outside Diameter | Nominal Wall Thickness | ||||||||
| in. | mm | Schedule 5SA | Schedule 10SA | Schedule 40SA | Schedule 80SA | |||||
| in. | mm | in. | mm | in. | mm | in. | mm | |||
| 8 | 8.625 | 219.08 | 0.109 | 2.77 | 0.148 | 3.76 | 0.322 | 8.18 | 0.500 | 12.70 |
| 10 | 10.750 | 273.05 | 0.134 | 3.40 | 0.165 | 4.19 | 0.365 | 9.27 | 0.500B | 12.70B |
| 12 | 12.750 | 323.85 | 0.156 | 3.96 | 0.180 | 4.57 | 0.375B | 9.52B | 0.500B | 12.70B |
| 14 | 14.000 | 355.60 | 0.156 | 3.96 | 0.188B | 4.78B | … | … | … | … |
| 16 | 16.000 | 406.40 | 0.165 | 4.19 | 0.188B | 4.78B | … | … | … | … |
| 18 | 18.000 | 457.20 | 0.165 | 4.19 | 0.188B | 4.78B | … | … | … | … |
| 20 | 20.000 | 508.00 | 0.188 | 4.78 | 0.188B | 4.78B | … | … | … | … |
| 22 | 22.000 | 558.80 | 0.188 | 4.78 | 0.218B | 5.54B | … | … | … | … |
| 24 | 24.000 | 609.60 | 0.218 | 5.54 | 0.250 | 6.35 | … | … | … | … |
| 30 | 30.000 | 762.00 | 0.250 | 6.35 | 0.312 | 7.92 | … | … | … | … |
| Grade | Density (kg/m3) | Mean Co-eff of Thermal Expansion (µm/m/°C) | Thermal Conductivity (W/m.K) | Elastic Modulus (GPa) | Specific Heat 0-100°C (J/kg.K) | Elec Resistivity (nΩ.m) | |||
| 0-100°C | 0-315°C | 0-538°C | At 100°C | At 500°C | |||||
| 316H | 8000 | 15.9 | 16.2 | 17.5 | 16.3 | 21.5 | 193 | 500 | 740 |
We offer custom sizes for Stainless Steel 316H EFW Pipes to meet your specific needs. Our dedicated team at Samia Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@samiapipes.com.
Stainless Steel 316H EFW Pipes are widely used in industries requiring high corrosion resistance and enhanced high-temperature performance. They are ideal for chemical processing plants, petrochemical industries, boilers, heat exchangers, and high-temperature piping systems. In marine and offshore applications, they provide durability against corrosive seawater and aggressive chemicals. Additionally, they are used in pharmaceutical and food processing equipment where both corrosion resistance and thermal strength are critical. With their combination of mechanical strength, corrosion resistance, and high-temperature stability, Stainless Steel 316H EFW Pipes from Samia Pipes and Tubes deliver reliable, low-maintenance, and long-lasting solutions for demanding industrial applications.
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