Duplex Steel Fasteners
Kalpataru Piping Solutions is known as the leading duplex fastener manufacturer in India. We deliver high-quality duplex fasteners products, manufactured with international standards to fulfill the needs of industrial applications. These fasteners have higher tensile strength and yield strength to increase the life span. The chemical composition of duplex steel fasteners has substances like 21% chromium and 2.5% molybdenum to offer high corrosion resistance.
We offer duplex fasteners with many types like screws, nuts, bolts & washers. We design duplex stainless steel fasteners in many sizes, diameters & wall thicknesses to fulfil the specific needs of clients by performing quality testing. We serve the products globally all across the world mainly covering countries like South Africa, Europe etc. Explore our duplex fasteners to request the best affordable price.
Grades of Duplex Steel Fasteners
Duplex Fasteners Specification
| Standard | ASTM A479 ASME SA479 |
| Specification | IS, BS, ASTM, ASME |
| Grade | Duplex Steel | UNS S31803 |S32205 |
| Size | 3/6″ to 2″, M3 – M56, Custom Sizes |
| Length | 3mm to 200mm |
| Form | Screw, Nuts, Bolts, Washers |
| Application | Engineering, Automobile Industry, Heat exchanger and condenser, Oil & Gas, Power plants, Refineries & Petrochemicals, Ship building,Desalination Plants |
Chemical Composition of Duplex Steel Fasteners
| Grade | UNS No | C % | Cr % | Ni % | P % | Si % | S % | Mo % | N % | Mn % |
| 31803 | S31803 | < 0.03 | 21.0-23.0 | 4.5-6.5 | 1.03 max | 1 max | 0.02 max | 2.5-3.5 | 0.08-0.2 | < 2.0 |
| 2205 | S32205 | < 0.03 | 22.0-23.0 | 4.5-6.5 | 0.03 max | 1 max | 0.02 max | 3.0-3.5 | 0.14-0.20 | < 2.0 |
Duplex Fasteners Mechanical Properties
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| 31803 | 450 min. | 620 min. | 25 min. | 293 max. |
| 2205 | 450 min. | 655 min. | 25 min. | 293 max. |
Duplex Steel Fasteners Physical Properties
| Density (Kg / M3) | Modulus of Elasticity (GPa) | Poisson’s Ratio | Thermal Conductivity (W/moC) | Thermal Capacity (I/KgoC) | Electrical Resistivity |
| 7800 | 200 | 0.3 | 15 | 500 | 0.80 |
FAQ
What is a duplex bolt?
Duplex steel bolts are high-performance fasteners widely used in various industries because of their excellent corrosion resistance and strength. These bolts are made from a combination of austenitic and ferritic stainless steel, giving them superior mechanical properties to other common materials.
What are duplex screws used for?
The Duplex Screw is a reusable screw that is great for temporary structures, concrete form work, art installations, storm proofing, theater & stage sets, firework displays and other construction uses. Easy to install, remove and use again.
Related Products
- Duplex UNS S31803 Buttweld Fittings
- Duplex UNS S32205 Buttweld Fittings
- Duplex UNS S31803 Forged Fittings
- Duplex UNS S32205 Forged Fittings
- Duplex UNS S31803 Olets
- Duplex UNS S32205 Olets
- Duplex Steel UNS S31803 Fasteners
- Duplex Steel UNS S32205 Fasteners
- Duplex UNS S31803 Instrumentation Valves
- Duplex UNS S32205 Instrumentation Valves
- Duplex UNS S32205 Plates and Duplex UNS S32205 Sheets
- Duplex UNS S31803 Perforated Sheet
- Duplex UNS S32205 Perforated Sheet
- Duplex UNS S31803 Compression Tube Fittings
- Duplex UNS S32205 Compression Tube Fittings
- Duplex UNS S31803 Wiremesh
- Duplex UNS S32205 Wiremesh
- Duplex UNS S31803 Pipe Spools
- Duplex UNS S32205 Pipe Spools
- Duplex UNS S31803 Long Radius Bends
- Duplex UNS S32205 Long Radius Bends
Countries We Deliver
Iran, Venezuela, Saudi Arabia, Slovakia, Romania, Zimbabwe, Spain, Kazakhstan, Canada, Nigeria, Bulgaria, Afghanistan, Thailand, Bangladesh, Poland, United Kingdom, Bahrain, Jordan, Lithuania, Malaysia, France, Nigeria, Japan, Oman, Lebanon, Germany, Croatia, Australia, Puerto Rico, South Korea, Hungary, United States, Bhutan, Mexico, Mexico, Yemen, Singapore, New Zealand, Ecuador, Gabon, Qatar, Denmark, Iran, Netherlands, Norway, Sri Lanka, Belgium, Libya, Kuwait, Pakistan, Gambia, Sweden, Azerbaijan, Argentina, Chile, Ghana, United Arab Emirates, Finland, Nepal, Trinidad andamp; Tobago,Tunisia, Kenya, Peru, Austria, Russia, Ukraine, Italy, Belarus, Bolivia, Serbia, Poland, Mongolia, Turkey, Czech Republic, South Africa, Angola, India, Vietnam, Indonesia, Tibet, Ireland, Costa Rica, Greece, Colombia, Namibia, Iraq, Estonia, Israel, Macau, Philippines, Brazil, Switzerland, Algeria, Morocco, Chile, Portugal, Egypt, Taiwan, China, Hong Kong.
Cities We deliver
Bhopal, Lahore, Milan, Hyderabad, Pune, Vadodara, Pimpri-Chinchwad, Aberdeen, Howrah, Jeddah, Riyadh, Bogota, Petaling Jaya, Dallas, Lagos, Nagpur, Houston, Brisbane, Busan, Karachi, Coimbatore, Seoul, Caracas, Atyrau, Perth, Haryana, Bengaluru, Jaipur, Al Jubail, Kuwait City, Al Khobar, Sydney, Ranchi, Chiyoda, Noida, Chandigarh, Secunderabad, Ahvaz, Port-of-Spain, Singapore, Gurgaon, Rajkot, Rio de Janeiro, Abu Dhabi, Hong Kong, Surat, Sharjah, Hanoi, London, Muscat, Jakarta, Navi Mumbai, Istanbul, Kolkata, Cairo, Mumbai, Santiago, Montreal, Faridabad, Vung Tau, Bangkok, Ankara, Ahmedabad, Granada, Melbourne, Tehran, Visakhapatnam, New Delhi, Los Angeles, Ho Chi Minh City, Edmonton, La Victoria, Baroda, Thane, Nashik, Kuala Lumpur, Moscow, Ernakulam, Courbevoie, Calgary, Geoje-si, Indore, New York, Mexico City, Gimhae-si, Ludhiana, Kanpur, Ulsan, Thiruvananthapuram, Manama, Doha, Chennai, Madrid, Jamshedpur, Algiers, Dammam
