Super Duplex 32750
Super Duplex 32750, also written 2507, raises chromium, molybdenum and nitrogen above 2205 to push the pitting resistance equivalent into super-duplex territory. It is specified for seawater handling, chemical process equipment and chloride-bearing service.
Available Forms
Aurico Alloys LLP supplies Super Duplex 32750 in plates, round bars and sheets, with material test certificates (EN 10204 3.1) and export-ready packaging from Mumbai, India. Contact us for stock availability and pricing.
Specifications by Product Form
Duplex 32750 (S32750) is supplied to a different standard in each form. Quote the one that matches the product you are ordering.
| Product form | Specification |
|---|---|
| Plate, sheet and strip | ASTM A240 |
| Rod and bar | ASTM A276 / A479 |
| Wire | ASTM A479 |
| Pipe and tube | ASTM A790 / A789 |
| Fittings | ASTM A815 |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | S32750 |
| Werkstoff / EN number | 1.4410 |
| EN designation | X2CrNiMoN25-7-4 |
| Density | 7.80 g/cm3 |
| Melting range | 1445 °C |
| Specific heat (20 °C) | 460 J/kg·K |
| Thermal conductivity (20 °C) | 13.5 W/m·K |
| Coefficient of expansion (20–200 °C) | 14.0 µm/m·K |
| Coefficient of expansion (20–400 °C) | 14.5 µm/m·K |
| Electrical resistivity (20 °C) | 0.8 Ω·mm²/m |
| Young's modulus (20 °C) | 200 GPa |
| Magnetic | yes |
| Oil and gas conformance | NACE MR0175 / ISO 15156-3 · NACE MR0103 / ISO 17945 · Norsok M-630 MDS D55 (Aperam DX2507 Technical Data Sheet) |
Identifiers and physical constants for Duplex 32750. A dash means no such designation is published for this grade.