Latham Steel, located in Hamilton, New Zealand, has built a solid reputation as a reliable manufacturer and supplier of Super Duplex Steel Forgings. They specialize in crafting high-quality forged components that are designed to offer exceptional strength, corrosion resistance, and reliability. These forgings leverage the outstanding mechanical properties of super duplex steel, combined with the integrity and toughness that come from the forging process, making them perfect for demanding industrial and engineering applications. Latham Steel is committed to ensuring that each forging adheres to strict international standards, providing components that can be counted on to perform well even in the harshest environments. Their expertise enables them to deliver forgings that meet the needs of industries that require precision, durability, and a long service life.
Super Duplex Steel Forgings typically consist of 22–25% chromium, 5–7% nickel, 3–4% molybdenum, along with trace amounts of nitrogen, resulting in a well-balanced austenitic-ferritic microstructure. This unique composition offers remarkable resistance to pitting, crevice, and stress corrosion cracking, especially in environments rich in chlorides or other aggressive substances. On the mechanical side, these forgings boast a high tensile strength ranging from approximately 850 to 1000 MPa, a yield strength between 550 and 650 MPa, and impressive toughness even at sub-zero temperatures. The forging process enhances their structural integrity, minimizing the chances of porosity or defects and ensuring consistent mechanical performance throughout the component.
| 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. |
To verify the quality of Super Duplex Steel forgings, check for certifications like ASTM, ASME, or ISO standards. Conduct tests such as mechanical property testing, chemical composition analysis, and non-destructive testing (NDT) like ultrasonic or magnetic particle inspections.
Compatible welding processes for Super Duplex Steel forgings include Tungsten Inert Gas (TIG), Metal Inert Gas (MIG), Shielded Metal Arc Welding (SMAW), and Submerged Arc Welding (SAW), using appropriate filler materials.
Super Duplex Steel forgings are governed by standards such as ASTM A182, ASTM A240, ASME SA-182, ASME SA-240, and EN 10088-3, which define material properties, chemical composition, and mechanical requirements.
Super Duplex Steel Forgings find extensive use in critical applications across various sectors, including oil and gas, chemical processing, petrochemical, marine, and desalination industries. They are particularly well-suited for valves, flanges, pump shafts, pressure vessels, and other high-stress components that face corrosive or high-pressure conditions. With their blend of strength, toughness, and corrosion resistance, Super Duplex Steel Forgings provide long-term reliability and require minimal maintenance, making them a top choice for engineers and designers tackling challenging industrial projects.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Hemi Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Hamilton New Zealand
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