Request For Our Latest Prices On Duplex Steel Nuts S31803 in Canberra, Australia!
Hazlewood Fasteners, a well-respected manufacturer and supplier located in Canberra, Australia, specializes in top-notch Duplex Steel S31803 Nuts that are built for remarkable strength, corrosion resistance, and long-lasting durability. These nuts are made from high-quality duplex stainless steel, which cleverly merges the benefits of both austenitic and ferritic structures, resulting in exceptional toughness and mechanical stability. Each nut is meticulously crafted to meet international standards, ensuring consistent quality and performance. Hazlewood Fasteners’ Duplex Steel S31803 Nuts find their place in various industries, including oil & gas, petrochemical, marine, and chemical processing, providing reliable fastening solutions even in the most corrosive and challenging environments.
Duplex Steel S31803 Nuts are made up of roughly 22% chromium, 5–6% nickel, 3% molybdenum, along with carefully controlled amounts of nitrogen, manganese, and silicon, with iron making up the rest. This unique composition gives them a dual-phase microstructure that results in tensile strength ranging from 620–880 MPa and a yield strength of about 450–550 MPa. They boast excellent resistance to pitting, crevice, and stress-corrosion cracking, along with outstanding fatigue strength and dimensional stability. The combination of chromium and molybdenum significantly boosts their resistance to oxidation and chlorides, making them perfect for tough, chloride-rich environments.
| S31803 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
| S31803 | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
| Specifications | ASTM A479 / ASME SA479 |
| Standards | DIN, ASTM, BS and all International Standards |
| Length | 3 mm to 200 mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | Hex Head Bolts, Square Bolts, U bolts, Eyebolts, T bolt, Hex Bolt, Lag Bolts, Countersunk Bolts, Hex Head nuts, Square nuts, Locknuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Duplex Steel S31803 Nuts are incredibly popular in various industries, including oil and gas pipelines, offshore platforms, desalination plants, chemical processing units, and power generation systems. Their impressive strength and resistance to corrosion make them perfect for securing components in heat exchangers, pumps, valves, pressure vessels, and marine equipment that face harsh seawater and aggressive environments. In the pulp and paper and water treatment sectors, these nuts provide reliable and durable fastening even under high pressure and temperature. When it comes to applications that require exceptional mechanical strength, thermal stability, and resistance to corrosion and fatigue, Duplex Steel S31803 Nuts are the go-to choice.
At Hazlewood Fasteners, Duplex Steel Nuts S31803 are meticulously packaged to ensure their integrity and quality during transit. Each nut is individually inspected and wrapped in protective materials to prevent damage. For bulk orders, nuts are securely packed in durable, corrosion-resistant containers. Our packaging solutions are designed to maintain product excellence, safeguarding against environmental factors and ensuring that the nuts arrive in optimal condition. Trust Hazlewood Fasteners for secure and reliable packaging of your high-quality components.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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