Stainless Steel 347H pipes are made from high-carbon, stabilized austenitic stainless steel, featuring an alloy composition of 17–20% chromium, 9–13% nickel, and niobium (columbium) to boost intergranular corrosion resistance. The higher carbon content (up to 0.10%) enhances strength at elevated temperatures. These pipes boast impressive mechanical properties, including a tensile strength of about 515 MPa and a yield strength of around 205 MPa, along with good creep resistance and stress rupture strength. In their annealed state, SS 347H pipes are non-magnetic and demonstrate excellent weldability, oxidation resistance up to 870–900°C, and reliable performance in high-stress, high-heat conditions.
| International Specification | ASTM A312/ ASME SA 312 TP 347H |
| Seamless Pipes Size |
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| Welded Pipe Size |
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| EFW Pipe Size |
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| Wall Thickness | Schedule 5, Schedule 40, Schedule10, Schedule 80, Schedule 160, Schedule 80S, Schedule XXS, Schedule XS |
| techniques | EFW/ Seamless / ERW / Welded / LSAW/ Fabricated / Seam-Welded / CDW/ Redrawn |
| Form | Round, Square, Rectangular |
| Length | Double Random & Required Length End, Single Random, Plain End, Treaded, Beveled End |
| Condition | Hot Finished, Annealed and Pickled, Bright Annealed, Polished, Cold Drawn |
| Stainless Steel | Nickel | Magnesium | Silicon | sulfur | Carbon | Chromium | Phosphorus | Molybdenum | Nitrogen | |
| 347H | Minimum | 9 | 00.04 | 17 | 3 | |||||
| Maximum | 13 | 2 | 1 | 00.030 | 00.10 | 19 | 00.045 | 4 | ||
| SS Grade | Tensile Strength | Yield Strength | Elongation | Hardness | |
| Rockwell B | Brinell | ||||
| SS 347H | 515 | 205 | 40 | 92 | 201 |
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At Harshita Stainless, we are proud to be the largest supplier, manufacturer, and exporter of Stainless Steel 347H Pipes in Dubai, India. Our cutting-edge solutions cater to all your piping needs. With state-of-the-art production facilities strategically located in the India, we maintain a vast inventory of over 16,000 tons of premium-quality materials, ensuring we have the stock readily available to meet your demands.
Stainless Steel 347H Square Pipes provide excellent corrosion resistance and are ideal for structural applications. They typically come in sizes ranging from 1 inch to 6 inches, offering a high-strength option for various industrial and architectural needs.
SS 347H Seamless Pipes are known for their superior corrosion resistance and are suitable for high-temperature applications. They are available in sizes from 1/2 inch to 12 inches in diameter, ensuring durability under stress and high pressure.
Stainless Steel 347H ERW Pipes offer good corrosion resistance and are produced using electric resistance welding. They come in 1 inch to 24 inches, making them suitable for fluid transportation and structural support.
SS 347H LSAW Pipes feature excellent corrosion resistance and are used for high-pressure applications. Available in sizes ranging from 6 to 60 inches in diameter, they are ideal for large-scale industrial projects.
Stainless Steel 347H Round Pipes provide robust corrosion resistance and are versatile for various applications. Commonly available in sizes from 1/2 inch to 12 inches in diameter, they are suitable for both commercial and industrial uses.
Stainless Steel 347H Welded Pipes offer strong corrosion resistance and are manufactured by welding flat plates into cylindrical shapes. They are available in sizes from 1 inch to 24 inches and are suitable for a wide range of applications, including piping systems and structural components.
Harshita Stainless is a leading supplier, and stockist of high-quality Stainless Steel 347H Pipes in Dubai, India. Our products are widely used in various applications, and we are committed to delivering excellent service, resulting in high customer satisfaction. Our unique finishing techniques further distinguish us in the stainless steel industry. We are dedicated to consistently providing superior products and effectively meeting our customer’s needs.
Stainless Steel 347H pipes find extensive use in high-temperature settings where heat, pressure, and corrosion resistance are crucial. Common applications include heat exchangers, boiler tubes, superheaters, and equipment in refineries. They are also utilized in power generation, petrochemical processing, and high-temperature chemical manufacturing. Thanks to their robust resistance to intergranular corrosion post-welding, SS 347H pipes are a preferred choice for demanding environments.
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