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Savoy Piping Inc. supplies duplex stainless S31803 (UNS S31803) flanges — also ordered as ASTM A182 F51 — for chloride-bearing and high-strength process service.
Related: Flanges hub · WNRF · Blind · A182 stainless.
UNS S31803 is a 22% Cr duplex stainless steel (often A182 F51 as a forging grade) used for flanges in chloride and high-strength service.
S32205 (2205) has tightened chemistry versus S31803 and is commonly specified on newer projects. Confirm the exact UNS on the PO.
Move to S32750 / S32760 when higher PREN and seawater / severe chloride resistance are required.
UNS / A182 class (S31803 or F51), type/facing, size/class, bore/schedule, and MTC / PREN notes if required.
S31803 is a 22% Cr duplex grade with a mixed austenite/ferrite microstructure. It offers higher strength than 316L and improved chloride stress-corrosion resistance. Closely related S32205 (2205) is often preferred on newer projects.
Confirm S31803 vs S32205 on the datasheet. For higher PREN see S32750 / S32760.
Include material grade / ASTM class, flange type and facing, size and pressure class, bore/schedule, quantity, destination, and documentation (EN 10204 3.1 / 3.2, PMI, NACE, TPI). Email sales@savoypipinginc.com.
Related duplex flange pages
The chemical composition of grade Duplex Steel S31803 Flanges is outlined in the following table
| Grade | Common Name | C% | Mn% | Si% | P% | S% | Cr% | Ni% | Mo% | N% |
|---|---|---|---|---|---|---|---|---|---|---|
| 2205 | S31803 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 21.0-23.0 | 4.5-6.5 | 2.5-3.5 | 0.08-0.20 |
| 2205 | S32205 | 0.030 | 2.00 | 1.00 | 0.030 | 0.020 | 22.0-23.0 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 |
The mechanical properties of grade Duplex Steel S31803 Flanges are displayed in the following table.
| Tensile strength | 620MPa min | Density | 7,805kg/m3 |
|---|---|---|---|
| Yield strength | 40MPa mi | Elastic modulus | 200GPa |
Physical properties of Duplex Steel S31803 Flanges in the annealed condition
| Elongation | 25% min | Mean coefficient of thermal expansion | |
|---|---|---|---|
| Brinell hardness | 293 HB max | 0-100oC | 13.7µm/m/oC |
| Rockwell hardness | 31 HR C max | 0-315oC | |
Quality Control
Our primary goal is to meet our clients' demands and expectations regarding the goods. We deliver high-quality flanges to our valued customers. The product meets all of the quality requirements that have been established. Our clients have praised our items for their high quality and variety of features.
Manufacturing of flanges
S31803 Duplex Steel Flanges are created through the accumulation of alloys of high quality. This alloy has been thoroughly tested to avoid any form of material of poor quality being utilised incorrectly in the production of the flanges. We have skilled experts who oversee the employees' quality maintenance of the product. Furthermore, these professionals urge employees to work in the direction of the organization's aim. The ranges are designed in compliance with a set of national and international quality standards, as well as a set of production standards.
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Duplex Steel S31803 Flanges is Covered with Plastic Cloth and Packed in Wooden Box, Wooden Pallet and Wooden Fumigated Crate. Our Packaging is Fully Waterproof and Safe for Transport with Proper Strips on Wooden Box, having Lifting Point.
We Export Duplex Steel S31803 Flanges to Saudi Arabia, Iran, Iraq, United Arab Emirates, Qatar, Bahrain, Oman, Kuwait, Turkey, Egypt, Yemen , Syria, Israel, Jordan, Cyprus, Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia, Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay, United States Of America, Canada, Mexico, Panama, Costa Rica, Puerto Rico, Trinidad And Tobago, Jamaica, Bahamas, Denmark, Russia, Norway, Germany, France, Italy, United Kingdom, Spain, Ukraine, Netherlands, Belgium, Greece, Czech Republic, Portugal, Hungary, Albania, Austria, Switzerland, Slovakia, Finland, Ireland, Croatia, Slovenia, Malta, Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, The Republic Of Congo, Gabon, Europe, Africa, Asia, North America, South America, Middle East, Far East.etc
We Supply Duplex Steel S31803 Flanges Andhra Pradesh, Arunachal Pradesh, Assam, Bihar, Chhattisgarh, Goa, Gujarat, Haryana, Himachal Pradesh, Jammu and Kashmir, Jharkhand, Karnataka, Kerala, Madhya Pradesh, Maharashtra, Manipur, Meghalaya, Mizoram, Nagaland, Odisha, Punjab, Rajasthan, Sikkim, Tamil Nadu, Telangana, Tripura, Uttar Pradesh, Uttarakhand, West Bengal, Mumbai, Navi Mumbai, Pune, Nashik, Nagpur, Solapur, Kolhapur, Ambernath, Ahmednagar, Latur, Ahmadabad, Surat, Rajkot, Vadodara, Panaji, Madgaon, Chennai, Kolkata, Hyderabad, Bengaluru, Delhi, New Delhi, Ludhiana, Chandigarh, Raipur, Bhopal, Jamshedpur, Vishakhapatnam, Cochin, Ghaziabad, Noida, Gurugram, Bhillai, Durgapur, Vijaywada, Kanpur etc.
Savoy Piping Inc., is a well known worldwide Exporter of Duplex Steel S31803 Flanges, Savoy Piping Inc., is committed to provide each and every customer with the highest standard of customer service. We deal in Duplex Steel S31803 Flanges in India and Overseas, offering a wide range of Duplex Steel S31803 Flanges