Home > Duplex Steel > Duplex Steel Fasteners S31803
Standard : DIN, ASTM, BS and all International Standards
Size : 3 mm to 200 mm
Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size :M1 – M64 | #4 to 3″ | Custom Sizes
Length :M02 to M33
Types :Nuts, Bolts, Screws, Sockets, Studs, Screw, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Duplex Steel S31803 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Duplex Steel S31803 | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for every one of your piping requirements. With cutting-edge production facilities strategically positioned across the New Zealand, we maintain an extensive stock of more than 25,000 tons of top-grade materials ready and available on hand.
Reach out to us for a fast quote tailored to your requirement.
These Duplex Steel S31803 Fasteners are supplied by us in accordance with DIN, ISO, JIS or ANSI Standard.
Corrosion Resistance: Duplex steel S31803 fasteners deliver outstanding resistance to corrosion, particularly in harsh settings like marine and chemical operations. They hold up against general degradation, including pitting and crack corrosion.
Wide range of applications: Owing to their exceptional mechanical characteristics and corrosion resistance, S31803 fasteners work well across a broad spectrum of uses in oil and gas, chemical processing, marine engineering, pulp and paper, and more. They serve in numerous structural, mechanical, and critical bonding roles.
Cost Effectiveness: While the upfront price of a pair of steel S31803 fasteners might be steep next to certain other materials, their strong corrosion resistance, durability, and generally modest cost throughout their lifespan demand no upkeep, replacement, or decommissioning, yielding overall savings.
Duplex microstructure: The duplex microstructure of S31803 steel evens out austenitic and ferritic phases. Relative to standard austenitic or ferritic stainless steels, this arrangement adds to strength and flexibility with respect to compression, corrosion, and cracking resistance.
Strength: These fasteners are highly robust, enabling them to bear heavy loads and elevated pressures. The energy they retain is also held at high temperatures, which makes them fit for use across a range of industrial applications.
Duplex steel S31803 fasteners serve a crucial function throughout a wide range of industrial sectors, owing to their remarkable properties. Commonly employed in fields like chemical processing, oil and gas, marine, and offshore, these fasteners deliver outstanding corrosion resistance and mechanical strength.
Oil and Gas Applications: Fasteners manufactured from duplex steel S31803 are widely employed on marine platforms, subsea pipelines and equipment thanks to their excellent corrosion resistance and strength, even in harsh environments containing chloride ions.
Marine applications: Duplex steel fasteners are used in shipbuilding, offshore structures and marine equipment owing to their resistance to corrosion in the marine environment
Pulp and Paper Industry: Duplex steel S31803 fasteners are employed in pulp and paper processing equipment, including digesters, bleach plants, and paper machines, and they deliver outstanding corrosion resistance in acidic and alkaline environments.
Desalination equipment: Duplex steel S31803 fasteners are well suited for use in desalination plants where seawater is converted into fresh water. They offer excellent resistance to pitting and crack corrosion in the high chloride environments typical of desalination plants.
Chemical Processing: In chemical corrosion control industries, two-dimensional metal fasteners are favored for their resistance to corrosion, moisture, and stress corrosion cracking. They are Used in pumps, valves, reactors, and other equipment.
Types:Duplex steel S31803 is widely valued for its outstanding corrosion resistance and high strength. Be certain that the fasteners you select are manufactured from this specific duplex steel.
Certifications and Standards: Seek out fasteners that comply with applicable industry standards and certifications, like ASTM, ASME, or ISO standards. Such certifications guarantee that the binders offer high quality and dependability for your application.
Size and Design: Pick a fastener with the correct size, length, and thickness to secure a proper fit between the parts of the marriage. Take into account the yarn type (coarse or fine), thickness, and length to maintain consistency.
Strength and mechanical properties: Duplex steel S31803 delivers high strength along with flexibility. Verify that fasteners satisfy the necessary mechanical properties like tensile strength, yield strength, and stiffness so they can endure the intended loads and stresses.
Corrosion Resistance: Identify where the packaging will be applied. Duplex steels withstand corrosion across many environments, including those with chloride ions. Ensure the fasteners are appropriate for the corrosion exposure you plan to encounter.
Email: sales@koasteel.nz
