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Ojas Pipes and Tubes, located in Kolkata, India, stands out as a leading manufacturer and supplier of high-performance Stainless Steel 316H EFW Pipes. Renowned for providing top-notch piping solutions, Ojas caters to various industries, including petrochemical, power generation, and oil & gas, where resistance to high temperatures and pressures is crucial. The Stainless Steel 316H EFW (Electric Fusion Welded) Pipes are crafted using cutting-edge techniques to guarantee exceptional strength, durability, and corrosion resistance. With a commitment to innovation, precision engineering, and rigorous quality control, Ojas Pipes and Tubes has earned a solid reputation for reliability, timely deliveries, and customer satisfaction in global markets.
Stainless Steel 316H EFW Pipes are composed of 16–18% chromium, 10–14% nickel, 2–3% molybdenum, and a higher carbon content (up to 0.10%) to enhance high-temperature strength. These pipes boast impressive mechanical properties, featuring a tensile strength of about 515 MPa, yield strength of 205 MPa, and an elongation of roughly 40%. The EFW process guarantees smooth welds and consistent structural integrity. The 316H grade provides improved creep resistance, oxidation resistance, and durability, making it ideal for high-temperature, high-pressure settings where long-term reliability is essential.
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 Ojas 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 Ojas Pipes and Tubes provides tailored solutions for all your piping and tubing requirements. For more information, contact us at sales@ojaspipesandtubes.co.in.
Stainless Steel 316H EFW Pipes find extensive use in high-temperature and high-pressure applications across various industries. Typical applications include heat exchangers, boilers, superheaters, power plant piping, and pressure vessels. Their elevated carbon content ensures outstanding strength and creep resistance, making them perfect for thermal process equipment and refinery systems. These pipes are also employed in the petrochemical and oil & gas industries, where they manage corrosive fluids and gases. Thanks to their excellent weldability and resistance to oxidation, 316H EFW pipes are a reliable choice for demanding environments.
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