When a large chemical processing plant continuously battled corrosion issues in aggressive chloride and sulfuric acid environments, engineers turned to an innovative solution Alloy 59 Round Bars. Within months, process stability dramatically improved, equipment lifespan doubled, and downtime fell by 40%. This success underlined why Alloy 59 is now the alloy of choice across chemical, marine, oil & gas, pharmaceutical, and power generation industries demanding performance beyond conventional stainless steels.
Table of Contents:
Alloy 59 (UNS N06059, DIN 2.4605) is a nickel-chromium-molybdenum alloy engineered for supreme resistance to oxidizing and reducing agents in corrosive conditions. With extremely low carbon, silicon, and iron contents, this alloy delivers outstanding purity, stress-corrosion resistance, and metallurgical stability. It surpasses the performance of alternatives like Alloy 625 and C-22 in mixed-acid environments, maintaining strength and ductility even after prolonged service exposure to acid and saline solutions.
Aurico Alloys LLP provides Alloy 59 Round Bars with ASTM B574 and DIN 2.4605 specifications, manufactured in diameters from 6mm to 200mm and lengths up to 6000mm. Our bars are available in bright, polished, annealed, or ground finish, certified with EN 10204/3.1 test documentation and traceability. As a trusted supplier, manufacturer, and stockist, we provide affordable, authentic, and high-quality Alloy 59 for industries that demand reliability in the harshest operating conditions.
Owing to its composition balance of Ni (~60%), Cr (~23%), and Mo (~16%), Alloy 59 provides unmatched corrosion protection against hydrochloric, sulfuric, and nitric acids and saline water. It is the perfect choice for condensers, evaporators, and reactors that face constant acidic and chloride-rich exposure, minimizing maintenance costs and maximizing process uptime.
High-quality Alloy 59 Round Bars ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP |
|---|---|
| Grade | Alloy 59 (UNS N06059, W.Nr. 2.4605) |
| Standards | One rod and bar specification, in the identity table below. VDM also lists DIN 17752 / 17744, VdTÜV 505 and NACE MR0175 / ISO 15156 for this form. Inspection certificates to EN 10204. |
| Diameter Range | 6mm – 200mm |
| Length | 100mm – 6000mm |
| Finish | Bright, machined, polished, centerless ground, or rough turned |
| Delivery | Full MTC, batch traceability, export packaging |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N06059 |
| Werkstoff / EN number | 2.4605 |
| EN designation | NiCr23Mo16Al |
| Density | 8.6 g/cm3 |
| Melting range | 1310-1360 °C |
| Specific heat capacity (20 °C) | 414 J/kg·K |
| Thermal conductivity (20 °C) | 10.4 W/m·K |
| Electrical resistivity (20 °C) | 126 µΩ·cm |
| Modulus of elasticity (20 °C) | 210 GPa |
| Relative magnetic permeability (20 °C) | 1.001 |
| Rod and bar specification | ASTM B574 / B564 |
Identifiers and physical constants for Alloy 59. A dash means no such designation is published for this grade.
Stock & Product Availability
Alloy 59 Round Bars are stocked and supplied by Aurico Alloys LLP for rapid dispatch to global customers, ready for immediate integration in chemical plants, power turbines, marine systems, and processing units requiring flawless corrosion resistance.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Iron (Fe) | — | 1.5 |
| Chromium (Cr) | 22.0 | 24.0 |
| Nickel (Ni) | — | Balance |
| Molybdenum (Mo) | 15.0 | 16.5 |
| Carbon (C) | — | 0.01 |
| Sulfur (S) | — | 0.01 |
| Manganese (Mn) | — | 0.5 |
| Silicon (Si) | — | 0.1 |
| Copper (Cu) | — | 0.5 |
| Phosphorus (P) | — | 0.015 |
| Aluminium (Al) | 0.1 | 0.4 |
| Cobalt (Co) | — | 0.3 |
Composition limits for Alloy 59. 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 | Typical Value |
|---|---|
| Tensile Strength (MPa) | 690 – 900 |
| Yield Strength (MPa) | 250 – 340 |
| Elongation (%) | 40 |
| Hardness (HB) | ≤200 |
| Thermal Conductivity (W/m·K @ 20°C) | 10.4 |
| Electrical Resistivity (μΩ·cm @ 20°C) | 126 |
Applications & Benefits
- Chemical: reactors, scrubbers, evaporators, acid condensers, and acid recovery lines
- Marine: seawater desalination plants, salt/brine evaporators, and sub-sea piping
- Oil & Gas: downhole tubing, sour gas service, and refinery catalyst handling systems
- Pharma: heat exchangers and sterile process reactors resistant to corrosive media
- Power: flue gas desulfurization (FGD) systems, scrubbers, and turbine condensers
FAQ & Insights
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
Alloy 59 Round Bars from Aurico Alloys LLP are a standard of excellence across industries facing severe corrosion, assuring high purity, mechanical strength, and lifecycle reliability. Are your corrosive environments protected with the unmatched versatility of Alloy 59?