Duplex Fasteners Manufacturers in India.
Ozair Tradelink is a leading Duplex Fasteners manufacturer in India, supplying high-quality Duplex stainless steel bolts, nuts, studs, washers, and custom fasteners. Duplex stainless steel combines the strength of ferritic steel with the corrosion resistance of austenitic steel, making it ideal for aggressive and high-pressure environments.
We supply Duplex fasteners in Grade 2205, 31803, and other Duplex grades with ready stock and export services.
Types of Duplex Fasteners We Deal In
Hex Bolts
Heavy Hex Bolts
Stud Bolts
Threaded Rods
Hex Nuts
Lock Nuts
Plain and Spring Washers
Socket Head Cap Screws
Anchor Bolts
U-Bolts
Custom Fasteners
Key Features of Duplex Fasteners
High strength compared to SS 304 & 316
Excellent corrosion resistance
Superior resistance to stress corrosion cracking
Excellent durability
Long service life
Applications of Duplex Fasteners
Oil and gas industry
Offshore platforms
Chemical processing plants
Marine industry
Heat exchangers
Power generation
Duplex Fasteners Chemical Composition (%)
Duplex 2205 (UNS S32205)
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 22.0 – 23.0 |
| Nickel (Ni) | 4.5 – 6.5 |
| Molybdenum (Mo) | 3.0 – 3.5 |
| Nitrogen (N) | 0.14 – 0.20 |
| Carbon (C) | 0.03 max |
| Iron (Fe) | Balance |
Duplex Fasteners Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | 620 – 880 MPa |
| Yield Strength | 450 MPa min |
| Elongation | 25 % |
| Hardness | 290 HB max |
| Density | 7.8 g/cm³ |
Equivalent Grades of Duplex Fasteners
| Standard | Grade |
|---|---|
| UNS | S32205 / S31803 |
| ASTM | A182 F51 |
| DIN | 1.4462 |
| ISO | X2CrNiMoN22-5-3 |
| Werkstoff | 1.4462 |
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