Louis Metals is a reputable distributor and maker of Super Duplex Steel Forgings in Houston, USA. We are experts in the manufacture of high-performance forgings from super duplex stainless steel, with excellent strength and resilience to harsh environments. Our forgings are tailored for use in high-pressure and corrosive applications and are widely applied in offshore, chemical, and marine sectors. Made under stringent quality assurance and tailored to customer requirements, our super duplex forgings provide unparalleled reliability. At Louis Metals, customer satisfaction and material integrity remain our highest priority, ensuring that every product exceeds industry and performance expectations.
Super Duplex Steel Forgings typically comprise 24–26% chromium, 6–8% nickel, 3–5% molybdenum, and nitrogen to enhance strength and corrosion resistance. These forgings boast impressive mechanical properties including tensile strength of up to 800 MPa and excellent yield strength (typically 550 MPa). They have high resistance to crevice corrosion, pitting, and chloride stress corrosion cracking. They have a dual-phase microstructure that provides them with outstanding toughness and fatigue resistance, which makes them suitable for severe and harsh environments where other conventional stainless steels can fail.
| 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 are suitable for corrosive and high-stress conditions, which is why they are crucial in the oil & gas, desalination, marine, and chemical processing industries. They are utilized in valve bodies, pump shafts, flanges, and other pressure-containing parts. Due to their high strength-to-weight ratio, lower material consumption can be achieved without sacrificing performance. They also show superior resistance to erosion, cavitation, and general corrosion in seawater and acidic mediums. Super Duplex forgings with superior fatigue and impact strengths are favorite for offshore platforms, heat exchangers, subsea equipment, and power generation parts.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Louis Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Houston, USA
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