Home > Pipe Fittings > Stainless Steel 347H Pipe Fittings
Walid Stainless, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-quality stainless steel pipe fittings for industrial and high-temperature applications. Their Stainless Steel 347H Pipe Fittings are engineered to withstand extreme temperatures while providing excellent corrosion resistance and mechanical strength. Stabilized with niobium, these fittings resist intergranular corrosion, even after welding, ensuring long-term durability. Manufactured under strict quality control, Walid Stainless delivers fittings with precise dimensions, smooth finishes, and consistent performance. Customers rely on Stainless Steel 347H Pipe Fittings for secure, reliable, and long-lasting connections in power plants, chemical plants, and high-temperature piping systems.
Stainless Steel 347H Pipe Fittings are made from an austenitic stainless steel alloy containing approximately 17–19% chromium, 9–13% nickel, and niobium-stabilized carbon content. This composition provides excellent resistance to intergranular corrosion, oxidation, and thermal fatigue at temperatures up to 1100°C. The fittings typically exhibit tensile strength between 520–650 MPa and hardness around 160–190 HB. Their austenitic structure ensures superior toughness, creep resistance, and dimensional stability under continuous high-temperature and corrosive conditions.
| Grades | 201, 202, 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L |
| Type | Seamless / Welded / Fabricated |
| Bending Radius | R=1D, 2D, 3D, 5D, 6D, 8D, 10D or Custom |
| Size | ½”NB to 48″NB in |
| Schedule | Sch 10s, 40s, 80s, 160s, XXS. |
| Dimensions | ANSI/ASME B16.9, B16.28, MSS-SP-43. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 347H | 0.10 max | 2.0 max | 0.75 max | 0.045 max | 0.03 max | 18 – 20 | – | 8 – 10.5 | – |
| 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 % |
Contact us to get a quick quote for your requirement.
We ensures the very high standards with respect to quality in Stainless Steel 347H Pipe Fittings with rigorous tests and certifications. All products are given comprehensive inspection tests, including dimensional checks, mechanical tests, and corrosion resistance tests, and we provide relevant MTCs in order to ensure strict adherences to international standards and client requirements.
Stainless Steel 347H pipe fittings are high-temperature-resistant components made from stainless steel 347H, offering excellent strength, oxidation resistance, and durability, ideal for demanding industrial and aerospace applications.
SS Butt Weld 347H pipe fittings are high-temperature-resistant components used to join pipes through welding. Made from stainless steel 347H, they provide strength, durability, and corrosion resistance in extreme environments.
SS 347H Socket Weld pipe fittings are high-temperature components used to connect pipes via a socket weld. Made from stainless steel 347H, they offer excellent strength, corrosion resistance, and durability.
Stainless Steel 347H seamless fittings are high-temperature-resistant components with no welds, providing superior strength, durability, and corrosion resistance, ideal for demanding industrial and aerospace applications.
SS 347H cross pipe fittings are high-temperature-resistant components that connect four pipes at a junction. Made from stainless steel 347H, they offer strength, durability, and resistance to oxidation and corrosion.
Stainless Steel 347H tee fittings are high-temperature-resistant components that create a T-junction, connecting three pipes. Made from stainless steel 347H, they provide strength, durability, and resistance to oxidation and corrosion.
Stainless Steel 347H Pipe Fittings are widely used in industries requiring secure connections under high temperatures and corrosive environments. Common applications include boilers, heat exchangers, chemical processing units, petrochemical plants, and power generation piping systems. Their stabilization with niobium prevents intergranular corrosion, making them ideal for welded assemblies and long-term elevated-temperature service. Engineers and maintenance professionals rely on 347H Pipe Fittings for durability, safety, and consistent performance. Walid Stainless ensures each fitting meets stringent quality standards, providing dependable and reliable operation in industrial, chemical, and high-temperature piping applications.
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