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Duplex Steel S31803 and S32205 are extensively utilized in industries that demand materials possessing superior strength and resistance to corrosion. These alloys belong to the family of duplex stainless steels, which perform better in harsh conditions by combining the qualities of ferritic and austenitic stainless steels. The first iteration of duplex stainless steel is called UNS S31803, or Duplex Steel S31803. About 22% chromium, 5% nickel, and 3% molybdenum are present. A good balance between strength, corrosion resistance, and weldability is offered by this composition. Because of its exceptional resistance to pitting and crevice corrosion, S31803 finds application in both the chemical processing and maritime industries. It is frequently used for fasteners that require high strength and resistance to stress corrosion cracking, such as bolts, nuts, and washers.
These duplex steels are highly valued for their exceptional mechanical qualities and longevity when used to make fasteners. They are made to withstand severe conditions and huge weights without breaking down. They are a dependable option for demanding applications because of their resistance to corrosion and stress corrosion cracking, which guarantees a longer service life and lower maintenance costs. Duplex steel fasteners offer strength and resistance for pressure vessels, pipelines, and structural components, assuring efficiency and safety in a range of industrial situations.
An improved form of S31803 is Duplex Steel S32205, also known as UNS S32205. It has significantly greater concentrations of nickel (5–6%), molybdenum (3%), and chromium (around 22%). These improvements raise its tensile strength and strengthen its resistance to corrosion. S32205 is preferred in more demanding applications including the oil and gas sector, chemical processing, and seawater handling because it performs better in severe environments, especially those with higher chloride concentrations.
Specification : ASTM A193, A194 / ASME SA193, SA194
Dimension : IS, BS, ASTM, ASME
Size : M02 to M33, Custom Sizes
Dimension Standard : DIN 933, ISO 4017, DIN 931, ISO 4014, DIN 982, DIN 985, DIN 912, ISO 7380, DIN 7991, DIN 125, ISO 7379, DIN 127, DIN 1481, DIN 975, DIN 6923, DIN 934, DIN 7984
External Coating : Teflon Coating, Oxidized, Zinc Plating, Chrome Plating, Mirror Buffed, Hot Dipped Galvanizing, Epoxy Coating, Electro Polished, Passivation
Origin : Indian Origin, European Origin, Japanese Origin
Testing and Documents : Mill Test Certificates, EN 10204 3.1, Chemical Reports, Mechanical Reports, Destructive Test Report, Non Destructive Test Reports, PMI Test Reports, Visual Inspection Reports, Third Party Inspection Reports, NABL Approved Lab Reports
Packing : Packed in Wooden Boxes, Bubble wraps, Steel Strips Bundled, or as per Customers Requests
A Wide Range of ASTM A193 S31803 / S32205 Duplex Steel Flanges at Best Price.
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Duplex Steel 2205 Bolts
Duplex Steel 2205 Nuts
Duplex Steel 2205 Screw
Duplex Steel 2205 Stud Bolts
Duplex Steel 2205 Washer
Duplex Steel 2205 Threaded Rod
Duplex Steel 2205 Anchor Bolts
Duplex Steel 2205 Half Threaded Bolt
STANDARD | WERKSTOFF NR. | UNS |
Duplex 2205 | 1.4462 | S31803 / S32205 |
Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
S31803 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 22.0 – 23.0 | 3.0 – 3.5 | 4.50 – 6.50 | 0.14 – 0.20 | 63.72 min |
S32205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 - 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
S31803 / S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Duplex Steel S31803 Fastener
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Duplex Steel Fasteners
We have regular exports of Duplex Steel S31803 / S32205 Fasteners in Europe, Kuwait, Bangladesh, UAE, Hong Kong, Poland, Bahrain, Jordan, Nepal, United States, Algeria, Yemen, Spain, Qatar, Ghana, Malaysia, Philippines, United Kingdom, Chile, Azerbaijan, Lithuania, Saudi Arabia, Iran, Trinidad & Tobago,Tunisia, Turkey, Brazil, Iran, Poland, Japan, France, USA, Belgium, Thailand, Estonia, Brazil, Vietnam, China, Chile, Costa Rica, Iran, Japan, Malaysia, Congo, Germany, Egypt, Tibet, United Arab Emirates, South Africa, South Korea, Ireland, Finland, Italy, Taiwan, Sweden, Czech Republic, Iraq, Puerto Rico, Austria, Ukraine, Mexico, Pakistan, Portugal, Netherlands, Denmark, Sri Lanka, Gabon, Kazakhstan, Bulgaria, Angola, Bhutan, Romania, Indonesia, Ecuador, Canada, Nigeria, Singapore, Argentina, Israel, Venezuela, Nigeria, Afghanistan, Bolivia, Peru, Russia, Switzerland, Libya, Kenya, Macau, New Zealand, Lebanon, Belarus, Mongolia, Croatia, Gambia, Morocco, Slovakia, Australia, Colombia, Norway, Oman, Hungary, Mexico, India, Zimbabwe, Namibia, Serbia, Greece.
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