Based in Delhi, India, Harshita Stainless is a reputable producer and supplier of premium stainless steel 347H bars that are designed to function exceptionally well in corrosive and high-temperature conditions. Stainless Steel 347H Bars are well-known for their exceptional creep strength and resistance to intergranular corrosion, making them perfect for uses involving high temperatures and thermal cycling. Harshita Stainless guarantees timely delivery, precise manufacturing, and adherence to international standards. In order to satisfy specific customer needs for robust and dependable stainless steel bar products, the company offers tailored solutions to a variety of industries, including petrochemical, power generation, pharmaceuticals, and aerospace.
With iron serving as the base, stainless steel 347H bars are made up of chromium (17–20%), nickel (9–13%), carbon (0.04–0.10%), and columbium (niobium) for stabilisation. 347H has a higher carbon content, which increases its strength at high temperatures. These bars have an elongation of 35–40%, a yield strength of about 205 MPa, and a tensile strength of about 515 MPa. They are very resistant to creep deformation, intergranular corrosion, and oxidation. Stainless steel 347H is perfect for heat-intensive industrial applications because it retains its mechanical qualities and structural integrity even when subjected to thermal stress and temperature fluctuations.
| Specifications | ASTM A276 / ASME SA276 |
| Dimensions | ASTM, ASME |
| Range | 3.17 MM TO 350 MM DIA |
| Diameter | 25mm to 152mm |
| Length | 1 to 6 Meters, Custom Cut Length |
| Finish | Bright, Polish & Black |
| Form | Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wiremesh, Billet, Ingot, Forging |
| Condition | Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 347H | min. | 0.04 | – | – | – | – | 17.0 | 3.00 | 9.0 | – |
| max. | 0.10 | 2.0 | 1.00 | 0.045 | 0.030 | 19.0 | 4.00 | 13.0 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347H | 515 | 205 | 40 | 92 | 201 |
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At Harshita Stainless quality matters. Our Stainless Steel 347H Bars undergo rigorous testing, including tensile strength hardness, corrosion resistance tests so as to be in international standards. We have credible agencies certified thus we furnish material test certificates (MTCs) and third-party inspections. Ensuring reliability and unmatched performance in critical industrial applications.
Stainless Steel 347H Round Bars offer excellent corrosion resistance. Available in sizes ranging from 3mm to 200mm in diameter, these bars are ideal for applications in high-temperature environments due to their stability and durability.
These bars provide outstanding resistance to corrosion and oxidation. Stainless Steel 347H Flat Bars come in thicknesses from 1mm to 50mm and widths from 10mm to 500mm, making them suitable for a variety of industrial uses.
Stainless Steel 347H Square Bars are perfect for high-stress applications. Available in sizes from 5mm to 100mm, they combine excellent mechanical properties with superior resistance to intergranular corrosion.
These bars are highly resistant to corrosion and scaling. Stainless Steel 347H Rectangular Bars are available in thicknesses from 1mm to 50mm and widths from 10mm to 500mm, ideal for structural and mechanical applications.
Stainless Steel 347H Hexagonal Bars offer excellent resistance to high temperatures and corrosion. Available in sizes ranging from 6mm to 75mm, they are widely used in the manufacturing of fasteners and other high-strength components.
These corrosion-resistant bars are available in a range of sizes. Stainless Steel 347H T-Bars provide excellent mechanical strength and are ideal for structural applications requiring high resistance to oxidation and corrosion.
Applications requiring high-temperature strength and resistance to oxidation and corrosion frequently use stainless steel 347H bars. They are utilised in refinery parts, reactors, and heat exchangers in the petrochemical and oil and gas sectors. They are used in boiler tubes, high-temperature piping, and superheaters in power plants. 347H bars are used in the automotive and aerospace industries for thermal shielding, engine components, and exhaust systems. Additionally, they are appropriate for the chemical, pharmaceutical, and food processing industries where high temperatures and hygienic conditions are crucial. They are perfect for load-bearing and structural components in harsh environments because of their sturdy design and thermal stability.
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