Chuck Metals, based in Pulau Ujong, Singapore, stands out as a top manufacturer and supplier of high-quality stainless steel products, including Stainless Steel 347H Forgings. Known for their commitment to quality, reliability, and precision, Chuck Metals offers forging solutions that cater to the specific needs of critical industries. Their 347H forgings are designed to endure extreme temperatures and harsh environments, ensuring enhanced durability and structural integrity. They serve various sectors, such as petrochemical, power generation, and aerospace, and are dedicated to providing products that not only meet international standards but also exceed customer expectations in performance, lead time, and technical support.
Stainless Steel 347H Forgings are crafted from a high-carbon variant of alloy 347, which is stabilized with niobium (columbium) to prevent intergranular corrosion. The alloy’s composition features chromium (17–20%), nickel (9–13%), and carbon (0.04–0.10%), along with trace amounts of manganese and silicon. This formulation enhances creep resistance and tensile strength, particularly in high-temperature applications. Typical mechanical properties include a tensile strength of 75 ksi (515 MPa), yield strength of 30 ksi (205 MPa), and an elongation of about 40%. The 347H alloy maintains its mechanical integrity during thermal cycling and offers excellent oxidation resistance when exposed to elevated temperatures over extended periods.
| 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 their place in high-temperature and high-pressure applications that require robust mechanical performance and corrosion resistance. They are commonly used in the production of flanges, fittings, valves, heat exchanger components, pressure vessels, and parts for furnace and reactor systems. The high carbon content enhances strength under prolonged thermal stress, while niobium stabilization ensures resistance to intergranular attack during welding or thermal exposure.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Chuck Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Singapore, Singapore
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