Home > Duplex Steel > Duplex Steel S31803 Nuts
Marsh Nickel Alloys stands out as a top-notch manufacturer and supplier located in Canberra, Australia, with a focus on high-quality Duplex Steel S31803 Nuts. These nuts are celebrated for their remarkable strength, toughness, and resistance to corrosion, making them perfect for reliable and secure fastening in even the toughest industrial settings. At Marsh Nickel Alloys, precision in manufacturing and rigorous quality control are top priorities, ensuring that every product is consistent and durable. You’ll find Duplex Steel S31803 Nuts widely utilized across industries like oil and gas, chemical processing, marine, and power generation, where they play a crucial role in securing flanges, valves, pumps, and other vital components in high-pressure and corrosive environments.
|
Material
|
Specification
|
Standards |
Size
|
Length
|
|
Duplex Steel S31803 |
IS BS ASTM |
ASTM / ASME – A/ SA 479 / 479
|
3 mm |
M02 to M30 |
| Cr | N | Ni | C | Mn | Si | P | S | Mo | |
|---|---|---|---|---|---|---|---|---|---|
| S31803 | min: 21.0 max: 23.0 | min: 0.08 max: 0.20 | min: 4.5 max: 6.5 | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.02 max | min: 2.5 max: 3.5 |
| S32205 | min: 22.0 max: 23.0 | min: 0.14 max: 0.20 | min: 4.5 max: 6.5 | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.02 max | min: 3.0 max: 3.5 |
Grade | Tensile Strength (MPa) min | Elongation (% in 50mm) | Yield Strength 0.2% Proof (MPa) min | Hardness Rockwell C (HR C) |
|---|---|---|---|---|
UNS-S 31803 | 650-880 | 25 | 448 | |
UNS-S 32205 | 621 | 25 | 448 | 21 max |
At Marsh Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Nuts in Canberra, Australia, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Australia, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel S31803 Nuts are heavily relied upon in oil and gas pipelines, chemical and petrochemical facilities, marine engineering, and power generation equipment. They’re particularly well-suited for securing flanges, valves, pumps, and other essential components in corrosive and high-pressure situations. With their impressive resistance to pitting, crevice corrosion, and stress corrosion cracking, these nuts guarantee leak-proof, durable joints. Their exceptional mechanical strength, corrosion resistance, and reliability make them indispensable for offshore platforms, refineries, chemical reactors, and heat exchangers that operate under demanding industrial conditions.
