Equipment failure in a fertilizer reactor, a subsea platform, or a pharma process tank can cost millions and threaten safety overnight. That risk changed for one multinational plant when it adopted Alloy 28 Round Bars the only grade that withstood continuous exposure not just to hydrochloric and sulfuric acid, but also to brine, pressure surges, and high operating temperatures. Today, procurement heads and engineers in chemical, marine, oil & gas, pharmaceutical, and power generation trust Aurico Alloys LLP Alloy 28 Round Bars for critical upgrades, re-rating, and fabricator supply across the most aggressive environments.
Table of Contents:
Alloy 28 (UNS N08028, DIN 1.4563, Incoloy 28) is a super-austenitic stainless with high nickel (30-32%), chromium (26-28%), and balanced iron content plus 3-4% molybdenum and controlled additions of copper and manganese. This chemistry makes Alloy 28 unique among process alloys: it resists stress corrosion cracking, pitting, and crevice attack from chlorides, sulfides, sour-gas, and strong acids when 304, 316, and even 904L fail. It’s especially reliable for phosphoric, sulfuric, nitric, acetic and hydrochloric acid process streams.
For modern chemical, marine, and power facilities, Alloy 28 round bars mean fewer emergency repairs and longer service intervals in acid and salt-rich feedstocks, as well as high-pressure or thermal-cycling lines. Supplied by Aurico Alloys LLP per EN 10088-3 and EN 10272, these bars are easily machined, TIG/MIG/SAW welded, and precision-cut for OEM or field repair. With robust documentation, short lead times, and full compliance, hardware distributors and project buyers can rely on proven sourcing and long-term value.
Unlike basic stainless and commodity alloys, Alloy 28 delivers stability, machinability, and corrosion protection at temperatures up to 1000°F/540°C and withstands brine, caustics, and aggressive media where other bars would pit or fail. Its global reputation is built on multi-decade performance in refineries, offshore rigs, pharma plants, water demineralization, and critical heat exchanger fleets.
High-quality Alloy 28 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Alloy 28 (UNS N08028, DIN 1.4563, Incoloy 28) |
| Standards | EN 10088-3, EN 10272 — ASTM publishes no bar specification covering UNS N08028 |
| Diameter Range | 14mm – 300mm (custom cut size available) |
| Length | 1m to 6m and cut length |
| Finish | Bright, machined, rough turned, polished, black, ground |
| Delivery | Direct from stock, export pack, batch MTC 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) |
| Rod and bar specification | EN 10088-3 / EN 10272 |
Identifiers and physical constants for Alloy 28. A dash means no such designation is published for this grade.
Stock & Product Availability
Alloy 28 round bars are warehoused and custom-processed by Aurico Alloys LLP: available in sizes from 14mm to 300mm, and stocked/packed globally with certification for every project or urgent repair job.
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 & Physical Properties
| Property | Standard Value |
|---|---|
| Hardness (HB) | ≤ 230 |
| Yield Strength, 0.2% MPa | 220–250 |
| Tensile Strength (MPa) | 500–750 |
| Elongation (%) | 30–40 |
| Max Service Temp (°C) | 540–1000 |
Applications & Benefits
- Chemical: reactors, pipe, heat exchangers, pressure vessels for acids and chlorides
- Oil & Gas: platforms, fittings, downhole hardware in sour, seawater/brine environments
- Marine: ship pumps, hull fittings, desalination, heat exchangers for seawater
- Pharma: reactors, fermenters, process vessels where cleanability and corrosion protection overlap
- Power: superheater tubes, turbine blades, heat-exchanger tubes in high temp/corrosive service
- OEM/fab: precision-cut, machined, export-packed stock for hardware kits and field repairs
FAQ & Search Trends
Global Export Destinations
We ship worldwide from Mumbai. See every destination we export to on our export markets page.
Domestic Supply Network Across India
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Aurico Alloys LLP Alloy 28 Round Bars empower chemical plants, marine platforms, power, oil/gas, and pharma to thrive where ordinary alloys fail bringing global certification, corrosion-resistance, and field-proven long-term reliability. Is your critical project ready for the world's most advanced and trusted corrosion-resistant round bar?