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Mazin Fasteners is a trusted manufacturer and supplier of Duplex Steel Bolts S32205, proudly based in Muscat, Oman. We cater to high-performance industrial applications around the globe. Our company is all about precision manufacturing, rigorous quality control, and adhering to international standards. With state-of-the-art production facilities and a skilled technical team, we create bolts that are designed for exceptional strength and outstanding corrosion resistance. Our commitment to material traceability, dimensional accuracy, and timely delivery has made us a go-to supplier for industries like oil & gas, offshore, petrochemical, marine, and power generation.
Duplex Steel Bolts S32205 are crafted from a specialized duplex stainless steel alloy that features around 22% chromium, 5–6% nickel, 3% molybdenum, and a controlled amount of nitrogen. This well-balanced austenitic-ferritic microstructure gives these bolts remarkable mechanical strength and corrosion resistance. They boast nearly double the yield strength of traditional austenitic stainless steels, along with impressive tensile strength, good toughness, and resistance to pitting, crevice corrosion, and stress corrosion cracking. Their mechanical stability ensures they perform reliably even under high pressure and temperature conditions.
| Cr | N | Ni | C | Mn | Si | P | S | Mo | |
|---|---|---|---|---|---|---|---|---|---|
| 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 32205 |
621 |
25 |
448 |
21 max |
| Specifications | : | ASTM A 479 ASME SA 479 |
| Standard | : | 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, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, 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 Bolts S32205 find their place in a variety of applications that demand high strength and excellent corrosion resistance, especially in harsh environments. You’ll commonly see them in oil and gas pipelines, offshore platforms, subsea equipment, petrochemical plants, refineries, and desalination facilities. They’re also widely used in heat exchangers, pressure vessels, valves, pumps, and marine structures that face chloride-rich conditions. These bolts are built to withstand high pressure, fluctuating temperatures, and corrosive media, making them perfect for critical and safety-sensitive industrial bolting.
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Sheatal fasteners contain careful packages of duplex steel bolts S32205 to ensure safe delivery and optimum condition. Each bolt is inspected individually and then secured with high quality materials to prevent damage during transport. Regular packaging includes sturdy boxes and pallets, with additional protective layer added for added protection. Custom packaging solutions are also available to meet customers’ specific needs, ensuring our high quality bolts reach you in perfect condition, ready for immediate use.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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