Zeron 100 (F55) Forged Fittings are made to ASTM A182 / ASME SA182 F55 (UNS S32760) for firewater and seawater service. Socket weld and threaded fittings are dimensioned to ASME B16.11 for small-bore Zeron 100 piping.
Raaj Fittings manufactures Zeron 100 forged fittings in-house at our two plants in India, from ⅛" to 4" in Class 2000 to 9000, 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 standard | ASME B16.11; MSS SP-79, SP-83, SP-95 and SP-97 |
| Size range | ⅛" to 4" NPS |
| Pressure class | Socket weld: Class 3000, 6000, 9000. Threaded: Class 2000, 3000, 6000 |
| Threads | NPT to ASME B1.20.1; BSPT / BSPP to BS 21 / ISO 7-1 |
| 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 |
Small-bore super duplex fittings complete super duplex piping systems at instrument take-offs, drains and injection points. Socket welds need qualified low-heat-input procedures, and many specifications prefer buttweld branches in warm seawater service.
| Pipe | Socket weld class | Threaded class |
|---|---|---|
| SCH 80 / XS | 3000 | 2000 |
| SCH 160 | 6000 | 3000 |
| XXS | 9000 | 6000 |
Every heat is PMI-verified and its chemistry and mechanical properties are confirmed against the material specification before the forged fittings 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.
Class 3000 socket weld fittings match SCH 80 pipe, Class 6000 matches SCH 160 and Class 9000 matches XXS. For threaded fittings, the matching classes are 2000, 3000 and 6000.
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.