During a petrochemical plant's flare stack retrofit in Gujarat, sulfidizing corrosion eroded Alloy 600 components in weeks, forcing emergency shutdowns replaced by Haynes® HR-120 Plates , which endured 2 years with minimal degradation. This solid-solution strengthened alloy (UNS N08120) delivers 2x the tensile strength at 1600°F (871°C) and superior carburization resistance, slashing downtime for procurement teams in harsh environments.
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Haynes® HR-120 plates outperform Alloy 600, 330, and 800H with higher rupture strength (38 ksi at 1200°F vs 20 ksi for 600) and oxidation rates below 330 in air up to 2000°F (1093°C). Ideal for chemical process vessels, incinerators, and power recuperators where sulfides and carbon attack common Fe-Ni-Cr alloys.
Its Nb-stabilized structure resists cracking in carburizing gases, with weight gain just 0.5 mg/cm² after 1000h at 1800°F half that of RA330 while maintaining ductility for welding and forming. Fabricators value its ease over brittle high-Ni options.
Aurico Alloys LLP offers affordable, best quality, authentic Haynes® HR-120 Plates as trusted supplier, stockist, exporter in India to abroad supporting chemical, oil & gas, marine, pharma, power industries, and hardware stores with certified stock.
High-quality Haynes® HR-120 Plates ready for industrial use.
Specification Overview
| Supplier & Manufacturer | Aurico Alloys LLP, Haynes HR-120 plate suppliers Mumbai |
|---|---|
| Grade | Haynes® HR-120 (UNS N08120) |
| Standards | ASTM B409 (plate, sheet and strip) |
| Thickness Range | 4.75 mm – 150 mm |
| Width/Length | Up to 1219 mm x 6096 mm |
| Finish | Annealed, descaled, polished, hot-rolled |
| Delivery | Stock, custom, MTC EN 10204 3.1, export |
| Price | INR 5,000 – 15,000 per kg. Indicative USD 60 – 175 per kg; quoted against grade, form, size and quantity. |
Equivalent Grades & Standards
| Property | Value |
|---|---|
| UNS number | N08120 |
| Werkstoff / EN number | 2.4854 |
| EN designation | NiFe33Cr25Co |
| Density | 8.07 g/cm3 |
| Melting range | 1300 °C |
Identifiers and physical constants for Haynes HR-120. A dash means no such designation is published for this grade.
Stock & Product Availability
Haynes HR-120 plate stockist in Mumbai supplies ASTM B409 plates for radiant tubes and recuperators. Global shipment ready for OEM needs.
Chemical Composition
| Element | Min (%) | Max (%) |
|---|---|---|
| Iron (Fe) | — | Balance |
| Nickel (Ni) | 37 nominal | |
| Cobalt (Co) | — | 3 |
| Chromium (Cr) | 25 nominal | |
| Molybdenum (Mo) | — | 1 |
| Tungsten (W) | — | 0.5 |
| Niobium (Nb) | 0.7 nominal | |
| Manganese (Mn) | 0.7 nominal | |
| Silicon (Si) | 0.6 nominal | |
| Nitrogen (N) | 0.2 nominal | |
| Aluminium (Al) | 0.1 nominal | |
| Carbon (C) | 0.05 nominal | |
| Boron (B) | 0.004 nominal | |
| Titanium (Ti) | — | 0.2 |
Composition for Haynes HR-120. Figures given as a range or a maximum are limits and those marked nominal are not; none of them are measured values for a lot; the mill test certificate supplied with your order states the actual analysis.
Mechanical & Physical Properties
| Property | Value (Annealed, RT unless noted) |
|---|---|
| Tensile Strength (MPa/ksi) | 720 / 104 |
| Yield Strength 0.2% (MPa/ksi) | 323 / 47 |
| Elongation (%) | 50 |
| Hardness (HRBW) | 88 |
| Tensile @1200°F (ksi) | 73 |
| Rupture Strength 1000h @1600°F (ksi) | 8.0 |
| Max Service Temp (°C/°F) | 1093 / 2000 |
Applications & Benefits
Why this grade
Haynes® HR-120® is an iron-nickel-chromium alloy rather than a nickel-base one, which makes it the lower-cost option in the range. It delivers creep strength competitive with far richer alloys at temperatures around 1090°C, so it is specified for industrial furnace and waste-incineration hardware where alloy cost per tonne is part of the decision.
- Chemical & Power: Oxidation resistant Haynes HR-120 plates for carburizing furnaces, high creep strength in supercritical heat exchangers and FGD systems.
- Oil, Gas, Marine: Corrosion resistant Haynes HR-120 plates for offshore radiant tubes, sulfidizing service in sour gas lines and subsea incinerators.
- Pharma & Waste: Haynes HR-120 plate stockist Mumbai for pharmaceutical waste incinerators, heat treating baskets with 2x life vs 304/310 SS.
- Superiority: Haynes HR-120 vs Alloy 600: better carburization (lower weight gain), higher strength at 1800°F (18.6 ksi vs 11 ksi); Nb stabilizes against cracking.
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
We deliver across India from our Mumbai stockyard. See every city we supply on our supply locations page.
Conclusion
Haynes® HR-120 Plates (UNS N08120, ASTM B409) equip engineers with robust, oxidation-resistant performance that extends service life in carburizing/sulfidizing conditions, outperforming standards for reliable operations. Is your facility ready for Haynes® HR-120 plates?