Home > Duplex Steel > Duplex Steel S31803 Fasteners
Duplex Steel S31803 fasteners are robust fastening components crafted from duplex stainless steel, which boasts a well-balanced microstructure of austenite and ferrite. This unique dual-phase structure not only delivers impressive mechanical strength but also offers outstanding corrosion resistance and durability, making these fasteners ideal for challenging environments like chemical processing, marine applications, and various industrial settings. They excel in resisting pitting, crevice corrosion, and stress corrosion cracking caused by chlorides, ensuring dependable performance in critical situations.
| Specifications | : | ASTM A182 / ASME SA182 |
| Size | : | 1/8″ NB TO 24″ NB |
| Standards | : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | : | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F6 |
| 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 |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Fasteners in Cape Town , South Africa, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Cape Town, 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.
You’ll find Duplex Steel S31803 fasteners commonly used in pipelines, pressure vessels, heat exchangers, offshore platforms, and structural assemblies that are exposed to seawater, acids, and other aggressive substances. Their blend of high strength, corrosion resistance, and durability ensures secure fastening, a long service life, and minimal maintenance in demanding industrial and marine environments. These fasteners provide reliable and long-lasting connections for both structural and process-critical applications.
