Zeron 100 (UNS S32760) Flanges are made to ASTM A182 / ASME SA182 F55 (UNS S32760) for firewater and seawater service. They are supplied in every common flange type and facing to ASME B16.5, B16.47 and the main EN, DIN, BS and JIS standards.
Raaj Fittings manufactures Zeron 100 flanges in-house at our two plants in India, from ½" to 60" and in Class 150 to Class 2500, and exports them to EPC contractors, fabricators and stockists across the Middle East, Europe and the Americas, with full traceability and EN 10204 certificates.
| Material specification | ASTM A182 / ASME SA182 F55 (UNS S32760) |
|---|---|
| Dimensional standards | ASME B16.5 (½" to 24"), ASME B16.47 Series A and B (26" to 60"), EN 1092-1, DIN, BS 4504, JIS B2220 |
| Pressure class | ASME Class 150, 300, 600, 900, 1500 and 2500; PN 6 to PN 400 |
| Facing | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ), Male & Female, Tongue & Groove |
| Certification | EN 10204 3.1 mill test certificate as standard; EN 10204 3.2 on request |
Zeron 100 (UNS S32760) is a super duplex stainless steel alloyed with copper and tungsten as well as chromium, molybdenum and nitrogen, giving a PREN of at least 40. Zeron is a trademark of Rolled Alloys; fittings are supplied to the ASTM specifications for UNS S32760.
| Element, % | S32760 |
|---|---|
| Carbon (C) | 0.030 max |
| Manganese (Mn) | 1.00 max |
| Phosphorus (P) | 0.030 max |
| Sulphur (S) | 0.010 max |
| Silicon (Si) | 1.00 max |
| Chromium (Cr) | 24.0 – 26.0 |
| Nickel (Ni) | 6.0 – 8.0 |
| Molybdenum (Mo) | 3.0 – 4.0 |
| Copper (Cu) | 0.50 – 1.00 |
| Tungsten (W) | 0.50 – 1.00 |
| Nitrogen (N) | 0.20 – 0.30 |
| Property | Zeron 100 |
|---|---|
| Tensile strength | 750 – 895 MPa (109 – 130 ksi) |
| Yield strength (0.2%), min. | 550 MPa (80 ksi) |
| Elongation, min. | 25% |
| Reduction of area, min. | 45% |
| UNS | Werkstoff Nr. | EN / DIN | Other |
|---|---|---|---|
| S32760 | 1.4501 | X2CrNiMoCuWN25-7-4 | ASTM A182 F55 |
Super duplex flanges must be forged and heat treated within narrow temperature limits and water quenched to keep a balanced ferrite-austenite structure free of sigma phase. Ferrite measurement, impact tests at low temperature and ASTM A923 / G48 tests are normally written into the order.
Every heat is PMI-verified and its chemistry and mechanical properties are confirmed against the material specification before the flanges are released. Each piece is marked with grade, size, rating and heat number for traceability to its EN 10204 3.1 mill test certificate. EN 10204 3.2 certification and inspection by the buyer's nominated third-party agency are available on request, as are PED 2014/68/EU compliance for European projects and IBR certification for Indian boiler applications.
Ferrite, impact and ASTM A923 / G48 results are reported when they are specified.
Zeron 100 is the trade name of Rolled Alloys for super duplex UNS S32760. We supply fittings made and certified to the ASTM specifications for S32760 (F55, WPS32760).
Both are super duplex with a PREN of at least 40. S32760 adds copper and tungsten; S32750 has slightly different chromium and molybdenum limits. Both are used in seawater and offshore service.
We make Zeron 100 (UNS S32760) Flanges from ½" to 24" to ASME B16.5 and from 26" to 60" to ASME B16.47 Series A and B, in Class 150 to 2500, and to EN 1092-1, DIN, BS and JIS standards in PN ratings.
Every order is supplied with EN 10204 3.1 mill test certificates showing heat chemistry and mechanical properties to ASTM A182 F55 (UNS S32760). EN 10204 3.2 certification and inspection by your nominated third-party agency are available on request.