When a global oil and gas refiner battled costly shutdowns from chloride and acid corrosion, their solution wasn’t simply thicker stainless it was a strategic upgrade to Alloy 28 Sheets. Within months, failures plummeted, maintenance schedules relaxed, and production targets soared, winning confidence for Alloy 28 in chemical, marine, pharma, and power plants wherever reliability can’t be compromised. As a trusted supplier, Aurico Alloys LLP brings these mission-critical sheets to procurement heads, engineers, OEMs, and industrial supply chains demanding proven, certified performance.
Table of Contents:
Alloy 28 (Sanicro 28, UNS N08028, 1.4563) is a highly alloyed austenitic stainless with a powerful blend of 30–32% nickel, 26–28% chromium, 3–4% molybdenum, and added copper and nitrogen. This engineered balance grants resistance to strong acids (including sulfuric and phosphoric acid), seawater, sour gas, chlorides, and stress corrosion cracking satisfying specs for heat exchangers, piping, evaporators, desalinators, digesters, and reactors. Specified as ASTM B709 and EN 10028-7, Alloy 28 delivers what 316L and 904L cannot.
Aurico Alloys LLP supplies Alloy 28 Sheets with full material test certificates, traceability, and fabrication-ready finishes, including annealed, pickled, polished, and hot/cold rolled forms. Whether you’re running shutdown maintenance, engineering new vessels, or replacing seawater-worn components, our team ensures on-time, authentic product tailored to your harshest environments.
Choose Aurico Alloys LLP for Alloy 28 Sheets trusted by global process leaders and fabricators for longevity, workability, and value, whenever routine stainless steels will not do the job.
High-quality Alloy 28 Sheets ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Alloy 28 (Sanicro 28, UNS N08028, 1.4563) |
| Standards | ASTM B709, EN 10028-7, ASME SB709 |
| Thickness Range | 0.3 mm – 120 mm |
| Width Range | Up to 2500 mm |
| Length Range | Up to 6000 mm |
| Finish | Annealed, pickled, polished, cold/hot rolled |
| Product Forms | Sheet, plate, coil, strip, perforated, shim, chequered, blanks |
| Delivery Condition | Customized as per need; all MTC and test documents included |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N08028 |
| Werkstoff / EN number | 1.4563 |
| EN designation | X1NiCrMoCu31-27-4 |
| Density | 8.00 g/cm3 |
| Modulus of elasticity (20 °C) | 195 GPa |
| Thermal conductivity (20 °C) | 10 W/m·°C |
| Electrical resistivity (20 °C) | 0.99 µΩ·m |
| Specific heat (20 °C) | 460 J/kg·°C |
| Coefficient of expansion (30-100 °C) | 15 µm/m·°C |
| Magnetic permeability (relative) | 1.003 (datasheet prints this as an approximate value) |
| Plate, sheet and strip specification | ASTM B709 |
Identifiers and physical constants for Alloy 28. A dash means no such designation is published for this grade.
Stock & Product Availability
Aurico Alloys LLP holds ready stock of Alloy 28 Sheets in thickness 0.3 mm to 120 mm, standard and cut-to-length sizes, with finishes and product forms suitable for fabrication, urgent repair, or OEM production in corrosive industrial sectors.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Carbon (C) | — | 0.020 |
| Silicon (Si) | — | 0.70 |
| Manganese (Mn) | — | 2.00 |
| Phosphorus (P) | — | 0.030 |
| Sulfur (S) | — | 0.010 |
| Chromium (Cr) | 26.0 | 28.0 |
| Molybdenum (Mo) | 3.0 | 4.0 |
| Nickel (Ni) | 30.0 | 32.0 |
| Copper (Cu) | 0.70 | 1.50 |
| Nitrogen (N) | — | 0.10 |
Composition limits for Alloy 28. These are specification limits for the grade, not measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical Properties
| Property | Typical Value |
|---|---|
| Tensile Strength (MPa) | 500–750 |
| Yield Strength (0.2% MPa) | ≥220 |
| Elongation (%) | 35–40 |
| Hardness (HB) | ≤230 |
| Modulus of Elasticity (GPa) | 195 |
| Max Service Temp (°C) | Up to 600 |
Applications & Benefits
- Chemical Processing: reactors, heat exchangers, evaporators, piping for acid attack and chlorides
- Oil & Gas: offshore and onshore piping, heat exchangers, umbilicals, downhole tubing, separators
- Marine: desalination, seawater-cooled exchangers, scrubber systems, pump housings
- Pharmaceuticals: sterile reactors, utility piping, equipment exposed to aggressive cleaning
- Power Generation: condensers, FGD (flue gas desulfurization), and heat transfer lines
- OEMs: vessels, plates, and fabrications where superior crevice, pitting, and stress corrosion resistance are required
FAQ & Insights
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP’s Alloy 28 Sheets combine advanced corrosion resistance, mechanical performance, and certified global supply, making them the smart choice for the world’s toughest chemical, marine, pharma, oil & gas, and power projects. Ready to secure your operations with best-in-class Alloy 28 Sheets from a proven supplier?