Rupal Metals, located in Delhi, India, stands out as a reliable manufacturer and supplier of top-notch Stainless Steel 347H Forgings, specifically designed for high-temperature and high-stress settings. This type of stainless steel is a stabilized austenitic alloy with a higher carbon content, making it perfect for applications like pressure vessels, heat exchangers, and other components that face elevated temperatures. At Rupal Metals, we employ cutting-edge forging techniques and rigorous quality control to create components that are precise, durable, and resistant to corrosion. We cater to industries such as petrochemical, power generation, and refineries, ensuring timely delivery and dependable performance for critical applications around the globe.
Stainless Steel 347H is a high-carbon, niobium-stabilized austenitic stainless steel. Its makeup includes roughly 17–20% Chromium, 9–13% Nickel, along with enhanced Carbon (0.04–0.10%) and Niobium for stabilization. This alloy is known for its outstanding resistance to intergranular corrosion and its ability to maintain strength at elevated temperatures. Its mechanical properties feature a tensile strength ranging from 550–750 MPa, a yield strength of about 250 MPa, and impressive creep resistance. Additionally, it offers excellent weldability and good toughness, even in cryogenic conditions. Stainless Steel 347H is frequently utilized in forged components that need to withstand prolonged thermal exposure and stress.
| Standard | ASTM A182, ASME SA182 |
| Specification | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs. |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs. |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs. |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti | SS 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1457 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
Yes, Stainless Steel 347H forgings can be used for potable water applications, offering excellent corrosion resistance and durability, particularly in high-temperature systems or environments with varying water quality.
Yes, Stainless Steel 347H forgings are highly suitable for high-temperature applications due to their niobium stabilization, which enhances resistance to oxidation, thermal stress, and intergranular corrosion at elevated temperatures.
Stainless Steel 347H Forgings find extensive application in high-temperature and high-pressure environments where resistance to creep, corrosion, and thermal fatigue is crucial. They are commonly used in furnace parts, heat exchangers, boiler tubes, pressure vessels, radiant superheaters, and components within petrochemical refineries. The alloy’s stabilization against carbide precipitation makes it ideal for these demanding applications.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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