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Boikanyo Fasteners is a reputable manufacturer and supplier of Super Duplex Steel Nuts S32750, located in Cape Town, South Africa. They specialize in providing top-notch fastening solutions tailored for demanding industrial and marine applications. The Super Duplex Steel S32750 is known for its remarkable corrosion resistance and impressive mechanical strength, making it a perfect fit for offshore, chemical, oil and gas, and marine environments. Boikanyo’s S32750 Nuts are meticulously engineered to meet international standards, ensuring secure fastening, durability, and dependable performance in critical systems.
These Super Duplex Steel Nuts S32750 are crafted from an alloy that includes about 25% chromium, 7% nickel, 3% molybdenum, and 0.2–0.3% nitrogen. This unique blend offers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking, along with a high tensile strength ranging from 850 to 950 MPa. The dual-phase ferritic-austenitic microstructure guarantees mechanical stability at both room and elevated temperatures, making them ideal for high-pressure and critical service applications.
| Standard | : | ASTM A193 / A479, ASME SA193 / A479 |
| Dimension | : | ASTM,DIN, BS,GB, IS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Nut Size | : | M02 to M33 | Custom Sizes |
| Heat Treatment | : | Annealing, Stress Relieving, Case Hardening, Quenching and Tempering. |
| Type | : | Hex Nut, Heavy Hex Nut, Lock Nut, Nylock Nut, Weld Nut, Dome Nut, Flange Nut, Square Nut, Eye Nut etc. |
| C | Cr | Ni | Mo | N | Others |
|---|---|---|---|---|---|
| 0.020 | 25 | 7 | 4.0 | .27 | S=0.001 |
| Ultimate Tensile Strength, ksi | 116 min. |
|---|---|
| 0.2% Offset Yield Strength 0.2%, ksi | 80 min. |
| 0.1% Offset Yield Strength 0.2%, ksi | 91 min. |
| Elongation in 2 inches, % | 15 min. |
| Hardness Rockwell C | 32 max. |
| Impact Energy, ft.-lbs. | 74 min. |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Nuts S32750 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 Super Duplex Steel Nuts S32750 commonly used in offshore platforms, chemical processing plants, marine structures, desalination units, and power generation facilities. Their blend of high strength, corrosion resistance, and long-lasting durability ensures safe operation, minimal maintenance, and reliable fastening, even in the toughest industrial and marine conditions.